From: Brian Corey Subject: CB701 correlator report To: ivsmail@ivscc.gsfc.nasa.gov (IVS Mail) Date: Thu, 03 Aug 2000 16:02:07 EDT CB701 #2841 tar-save will be created 2000 May 10-11 Processing factor = ?? DOY 131-132 90% have fourfit Quality Codes of 5-9. Algonquin: No phase cal signal at S or X -- fringed with manual phases. Crimea: Phase cal phases and amplitudes were very unstable -- fringed with manual phases. Mk4 track 17 (channel S6) was unreadable throughout the experiment, and fringes and phase cal were absent in channel S5 in ~30% of scans -- S-band channels 5 and 6 were deleted in fringing. About 15% of scans are non-detections. DSS65: Not correlated. S-band was observed with the wrong (LCP) polarization. Recordings were poor, and only half the scheduled length of tape was recorded for each scan, due to an improperly created snap command file. Fortaleza: Mk4 track 8 was unreadable -- X-band channel 6 was deleted in fringing. Two hours of data not recorded -- reason unknown. Ny Alesund: Clock jumped by 200 ns around 132-1000 and then jumped back to its original value around 132-1145. Phase cal phases were occasionally unstable during and between scans. Phase changes were delay-like, with magnitudes of 100-300 ps between scans. Problem is in RF phase cal signal and not in LO. Fringed with manual phases. Tsukuba: No fringes in X channels 5-8 for the first 5.5 hours because the wrong IF signal was connected. Did not correlate Tsukuba during this time. Yellowknife: Receiver LO was unlocked during the last 1.5 hours. Did not correlate Yellowknife during this time. Phase cal phases sometimes jumped in a delay-like manner by 50-100 ps. Problem appears to be similar to Ny Alesund's. Fringed with manual phases. QC=5-9 GF 82% C - Crimea GN 94% F - Fortaleza GX 96% G - Algonquin Park CN 81% N - Ny Alesund NT 100% T - Tsukuba X - Yellowknife **************************************************************************** CB701 (2000 May 10-11) ====================== Correlator notes: DSS65: S-band signal was LCP, not RCP -- see Tony Perea's message below. Correlator prepass confirm it. As a result: (1) S fringe amps are ~10 times weaker than normal ==> SNR on the strongest source (4C39.25) and strongest baseline (with Algonquin) is only ~30. On weaker sources and weaker baselines, can expect mainly non-detections. (2) The channel fringe phases and amplitudes scatter between channels from scan to scan more than expected simply from the low SNR ==> MBD is corrupted. Also, nearly all scans were only half as long as scheduled, and the recordings were poor, because the snap command files were created with an old version of drudg that did not know about high-density recording. As a result, data were written at low density (135 ips) rather than high density (80 ips), and the tape was rewound after each scan by about half the amount of the just recorded tape, in order to start the next scan at the scheduled footage. So each scan was short, and data were written over previously recorded sections of tape. Furthermore, fringes disappear at S and X sometime between 132-0100 and 132-0900. Do not bother correlating DSS65 in production pass. Algonquin: No phase cal -- use manual phases. Crimea: Phase cal phases and amplitudes are unstable within and between scans -- use manual phases. Also, no valid data were obtained from track 17 (S channel 6) in any prepass scan -- delete S channel 6. Fortaleza: Log shows $$$$$ for track 8 (X channel 6) in all forward parity checks, and there were no valid data from track 8 in any prepass scan -- delete X channel 6. Ny Alesund: The gps-fmout log entries show a 0.2 us jump between 132-095211 and 132-100606, and a jump back to the original value between 132-114132 and 132-114808. The prepass scans show corresponding jumps in the SBD. Tsukuba: From the start of CB701 until 23:53:38, the wrong X-band IF (wrong RF frequency range) was connected to the VC supplying X channels 5-8. As a result there are no fringes in those channels. Don't bother correlating Tsukuba during that time interval. Yellowknife: According to message below, the receiver LO was probably unlocked during the last 1.5 hours of the experiment, in which case there will be no fringes then. Two prepass scans after 132-1656 show no fringes at S or X. The log has the following comment: 2000.132.16:37:56.34;"lost Pcal in S and X ??????? Don't bother correlating Yellowknife after 132-1637. June 9: Due to improper software configuration of the correlator, some data toward the end of the production pass had bad channel fringe phases at S-band. The misconfiguration happened in the course of multiple correlations of 132-1528_0552+398: data with root code ogbfce are OK, data with root code ogbkce are bad. Data correlated after 159-2319 (root code ogbfce) and before 161-2000 UT should be deleted. [Those data were deleted before the repro pass.] June 14, following fringing of production pass: Need to revise some phases in cf_2841, so production type-2 files should be purged and the correlator data refringed before the final export. Also may need to fringe Ny Alesund and/or Yellowknife with manual phases, due to unstable phase cal. Crimea: Fringes sometimes disappear in channel S5 -- use pcal amp to find instances. From examining plots of individual channel amp vs. coherent amp for 8 X and 6 S channels from production pass, found following scans with weak amplitudes in one or more channels that are likely due to a correlator problem and hence should be reprocessed: 131-2036_0727-115 131-2149_0749+540 131-2331_4C39.25 132-0039_1034-293 132-0059_0805+410 132-0217_0727-115 132-0332_1128+385 132-0413_1357+769 132-0911_1334-127 132-0915_OJ287 132-0917_1219+044 132-0919_NRAO512 132-1056_0528+134 132-1217_1741-038 132-1254_0003-066 132-1305_0552+398 132-1455_1606+106 132-1631_0749+540 132-1715_1219+044 Scan 132-1656_4C39.25 was used extensively for cbos testing. Be sure export includes only certified data from that scan. [Done.] The reprocessing done on June 17-18 was affected by a bug in cbos that, in the case of scans with different durations for the stations, sometimes effectively switched the durations for 2 or more stations and so would cause the correlations for a station to be shut down early. Need to review the data from those days to see whether repeat reprocessing should be done. [Investigated on August 2 by using program shortscans to select from the data to be exported all the scans that have integration time < 0.9 times scheduled duration. Of the 54 such points found (out of 2326 total), 15 were fringed from data correlated on June 17-18. From examination of the fringe plots and ovex file, it's clear that only 1 of the 15 scans was short because of the cbos bug. That one -- 132-0806_0749+540/CN.X.36.ogqtvi -- was short by ~50% due to the bug. Note that scan 132-0806 was the one in which this problem was discovered on June 19, so there are many, many correlations of this scan as the problem was investigated. This single bad type-2 was replaced by a good one with the full integration time before export.] July 31, following repro pass: Ny Alesund: Occasional instability in phase cal is definitely due to variations in RF pcal phases, as fringing with AP-by-AP pcal lowers the SNR when the phases are fluctuating. Differences in channel pcal phases between a good and bad scan scale linearly with frequency, so the MBD fit will soak up the phase changes from scan to scan, and there will be no indication of a problem in the fringe phase differences between channels. Plots of X-band pcal phase differences between channels show that 5-10% of scans, which are scattered throughout the experiment, are affected by unstable phase cal. The outliers in plots of pcal phase differences between channels X1 and X8 lie 10-40 degrees away from the majority; over 360 MHz, a 10-40 deg phase difference corresponds to a delay difference of 80-300 ps. The Ny Alesund cable cal also has outliers that match some of the pcal phase outliers; the cable cal outliers are 50-300 ps away from the norm, but the sign doesn't always match that expected from the pcal phases. Yellowknife: X-band pcal phase differences between channels X1 and X8 show ~10 jumps of 10-20 degrees during the experiment. Detailed examination of a jump that occurred during one scan (132-0016) shows that the change in phase is well modeled by dphase = RFfreq * 55 ps, so the phases are consistent with a 55 ps jump in the electrical length of the 5 MHz cable to the antenna unit. The cable cal also shows a jump of 50-80 ps at the time of this scan. In general, cable cal shows jumps coincident with, and comparable in magnitude to, jumps in pcal_diff(8), under the assumption that pcal_diff(8) = (cable delay) * (360 MHz). So, as with Ny Alesund, phase cal is corrupted due to a problem with the RF phase cal signal. The Yellowknife jumps are 50-100 ps in size. Should refringe all Ny Alesund and Yellowknife data with manual phases. Also take the opportunity to adjust Fortaleza's additive phases by up to 7 degrees in some channels. Crimea: About 30% of Crimea scans have no fringes or phase cal in S-band channel 5. Drop channel S5 in refringing. Tsukuba: Plot of X-band pcal_diff(8) shows many jumps of 10-30 degrees. Examination of fringe plots shows that the jumps must be due to jumps in the BBC LO phases, so they are not indicative of a problem in the pcal signal itself (unlike the situation at Yellowknife and Ny Alesund). In this case the phase cal is doing what it's designed to do! A plot of pcal_diff(7) (i.e., the difference in pcal phase between channels 7 and 1) shows far fewer jumps than does pcal_diff(8), which points to an instability in BBC channel X8. August 1: Refringed *all* data, with the following changes to the fourfit control file: Drop both channels S5 and S6 at Crimea. Use manual phases for Ny Alesund and Yellowknife (as well as Algonquin and Crimea, as was done in the original fringing). Tweak Fortaleza's additive phases. The refringed data have procdates between 214-1127 and 214-1336. Before selecting the data for export, most of the data for the following scans were deleted: 131-1840_0119+115 132-0718_4C39.25 132-1656_4C39.25 The deleted data were created in various test runs, many of which used AP lengths different from the 0.5 second used with all other scans. Between procdates 214-2139 and 214-2205, re-refringed the Ny Alesund S-band data with better manual phases. August 2: Refringed 3 low-SNR CN S-band scans with a MBD window to get the right MBD subambiguity (procdate 00215-1524), as well as 9 scans with mismatched FRTs (procdates 215-1632 to 215-1633). Export data were selected by choosing the best QC data from the August 1 refringing of everything, and then substituting in the 3 sets of data fringed after 214-2139 by 'edit duplicates procdate' within aedit. (The data that were fringed on the latter 3 occasions were all chosen from the best QC data of August 1.) **************************************************************************** Station Mail: **************************************************************************** From gsi32m@gaos.gsi-mc.go.jp Wed May 10 13:07:19 EDT 2000 Received: from hyperion.haystack.edu (hyperion.haystack.edu [192.52.65.1]) by planck.haystack.edu (8.8.6 (PHNE_17135)/8.8.6) with ESMTP id NAA12320; Wed, 10 May 2000 13:07:19 -0400 (EDT) Received: from ivscc.gsfc.nasa.gov (ivscc.gsfc.nasa.gov [128.183.107.36]) by hyperion.haystack.edu (8.9.3+Sun/8.9.1) with ESMTP id NAA24155; Wed, 10 May 2000 13:07:17 -0400 (EDT) Received: from gaos.gsi-mc.go.jp by ivscc.gsfc.nasa.gov; Wed, 10 May 2000 12:58:16 -0400 Received: from furudell by gaos.gsi-mc.go.jp with SMTP (1.38.193.4/16.2) id AA29696; Thu, 11 May 2000 01:58:14 +0900 Message-Id: <200005101658.AA00177@gsi32m.gaos.gsi-mc.go.jp> From: GSI VLBI group Date: Thu, 11 May 2000 01:58:13 +0900 To: ivs-ops@ivscc.gsfc.nasa.gov Subject: CB701 ready at Tsukuba32m Mime-Version: 1.0 X-Mailer: AL-Mail32 Version 1.01 Content-Type: text/plain; charset=us-ascii Status: RO Tsukuba32m is ready for CORE-B701. First source is 1749+096 at 18:30:00(UT). Sky is cloudy. Temp:10.71C, Hum:95%, Pres:1012.6Pa Formatter - GPS = 416 nsec at 10-May 16:56(UT). Tsys: X-band =49.8 K, S-band=71.8 K (EL=90) SEFD: X-band =245.98 Jy, S-band=365.53 Jy (Cygnus-A, AZ=68.7, EL=55.8) All systems are normal. Sincerely, ====================================================== GSI VLBI group Geographical Survey Institute, Ministry of Construction Japan e-mail:gsi32m@gaos.gsi-mc.go.jp web:http://vldb.gsi-mc.go.jp/sokuchi/vlbi/english/ ====================================================== From brazeau@geod.nrcan.gc.ca Wed May 10 14:20:34 EDT 2000 Received: from hyperion.haystack.edu (hyperion.haystack.edu [192.52.65.1]) by planck.haystack.edu (8.8.6 (PHNE_17135)/8.8.6) with ESMTP id OAA13376; Wed, 10 May 2000 14:20:34 -0400 (EDT) Received: from ivscc.gsfc.nasa.gov (ivscc.gsfc.nasa.gov [128.183.107.36]) by hyperion.haystack.edu (8.9.3+Sun/8.9.1) with ESMTP id OAA00523; Wed, 10 May 2000 14:20:33 -0400 (EDT) Received: from gdim.geod.nrcan.gc.ca by ivscc.gsfc.nasa.gov; Wed, 10 May 2000 14:10:27 -0400 Received: (from brazeau@localhost) by gdim.geod.nrcan.gc.ca (8.8.6 (PHNE_17135)/8.8.6) id SAA06845 for ivs-ops@ivscc.gsfc.nasa.gov; Wed, 10 May 2000 18:10:23 GMT From: Sylvain Brazeau Message-Id: <200005101810.SAA06845@gdim.geod.nrcan.gc.ca> Subject: CB701 ready in Yellowknife To: ivs-ops@ivscc.gsfc.nasa.gov (nasa; ops) Date: Wed, 10 May 2000 18:10:20 GMT X-Mailer: Elm [revision: 212.4] Status: RO Yellowknife is on first source 0552+398 and ready to start CB701 Weather is overcast, light wind and cool wx= 5.9C, 991.2mb, and hum is 56.8% SEFD on cygnusa Az=249 El=57 X=4347 S=7617 casa Az=152 El=85 X=4775 S=7750 FORM-GPS=2.418usec All is ok Regards from Yellowknife team. -- Sylvain Brazeau Geodetic Survey of Canada Ottawa, Ontario, Canada Internet: brazeau@geod.emr.ca From searle@geod.nrcan.gc.ca Wed May 10 14:35:10 EDT 2000 Received: from hyperion.haystack.edu (hyperion.haystack.edu [192.52.65.1]) by planck.haystack.edu (8.8.6 (PHNE_17135)/8.8.6) with ESMTP id OAA13637; Wed, 10 May 2000 14:35:10 -0400 (EDT) Received: from ivscc.gsfc.nasa.gov (ivscc.gsfc.nasa.gov [128.183.107.36]) by hyperion.haystack.edu (8.9.3+Sun/8.9.1) with ESMTP id OAA02183; Wed, 10 May 2000 14:35:09 -0400 (EDT) Received: from gdim.geod.nrcan.gc.ca by ivscc.gsfc.nasa.gov; Wed, 10 May 2000 14:30:20 -0400 Received: from localhost (searle@localhost) by gdim.geod.nrcan.gc.ca (8.8.6 (PHNE_17135)/8.8.6) with ESMTP id SAA06999 for ; Wed, 10 May 2000 18:30:17 GMT X-Authentication-Warning: gdim.geod.nrcan.gc.ca: searle owned process doing -bs Date: Wed, 10 May 2000 18:30:13 +0000 (GMT) From: Anthony Searle To: ivs-ops Subject: ARO started CB701 Message-Id: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Status: RO ARO has started CB701, Wx: Cloudy, light rain, temp = 9.3C press. = 972.1 mB, humid = 100% SEFD: 3C161 Az = 143 el = 31.2 X = 156.4 S = 205.7 Formatter - GPS = -2.005 us Tape temp = 22 C, Humid = 34% Tracking first source: 0552+398 PCAL is not present. Anthony Searle Geodetic Survey of Canada Ottawa, Ontario, Canada Internet: searle@geod.nrcan.gc.ca From gsi32m@gaos.gsi-mc.go.jp Wed May 10 14:37:07 EDT 2000 Received: from hyperion.haystack.edu (hyperion.haystack.edu [192.52.65.1]) by planck.haystack.edu (8.8.6 (PHNE_17135)/8.8.6) with ESMTP id OAA13650; Wed, 10 May 2000 14:37:07 -0400 (EDT) Received: from ivscc.gsfc.nasa.gov (ivscc.gsfc.nasa.gov [128.183.107.36]) by hyperion.haystack.edu (8.9.3+Sun/8.9.1) with ESMTP id OAA02280; Wed, 10 May 2000 14:37:06 -0400 (EDT) Received: from gaos.gsi-mc.go.jp by ivscc.gsfc.nasa.gov; Wed, 10 May 2000 14:30:15 -0400 Received: from furudell by gaos.gsi-mc.go.jp with SMTP (1.38.193.4/16.2) id AA00866; Thu, 11 May 2000 03:30:13 +0900 Message-Id: <200005101830.AA00178@gsi32m.gaos.gsi-mc.go.jp> From: GSI VLBI group Date: Thu, 11 May 2000 03:30:12 +0900 To: ivs-ops@ivscc.gsfc.nasa.gov Subject: CB701 start at Tsukuba32m Mime-Version: 1.0 X-Mailer: AL-Mail32 Version 1.01 Content-Type: text/plain; charset=us-ascii Status: RO Tsukuba32m started CORE-B701 on time. First source is 1749+096. Sky is cloudy. Temp:10.57C, Hum:97%, Pres:1012.8hPa Formatter - GPS = 409 nsec at 10-May 18:31(UT). All systems are normal. Sincerely, ====================================================== GSI VLBI group Geographical Survey Institute, Ministry of Construction Japan e-mail:gsi32m@gaos.gsi-mc.go.jp web:http://vldb.gsi-mc.go.jp/sokuchi/vlbi/english/ ====================================================== From leif.morten.tangen@statkart.no Wed May 10 14:52:26 EDT 2000 Received: from hyperion.haystack.edu (hyperion.haystack.edu [192.52.65.1]) by planck.haystack.edu (8.8.6 (PHNE_17135)/8.8.6) with ESMTP id OAA13976; Wed, 10 May 2000 14:52:26 -0400 (EDT) Received: from ivscc.gsfc.nasa.gov (ivscc.gsfc.nasa.gov [128.183.107.36]) by hyperion.haystack.edu (8.9.3+Sun/8.9.1) with ESMTP id OAA03208; Wed, 10 May 2000 14:52:24 -0400 (EDT) Received: from skrisrv6.statkart.no ([159.162.39.14]) by ivscc.gsfc.nasa.gov; Wed, 10 May 2000 14:46:01 -0400 Received: from pc-roar ([193.156.101.155]) by skrisrv6.statkart.no (Netscape Messaging Server 4.15) with SMTP id FUCXD300.4I6 for ; Wed, 10 May 2000 20:43:51 +0200 From: "Leif Morten Tangen" To: Subject: CB701 start Date: Wed, 10 May 2000 20:48:25 +0200 Message-Id: <000401bfbab0$52e9fce0$9b659cc1@pc-roar.gdiv.statkart.no> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-Msmail-Priority: Normal X-Mailer: Microsoft Outlook 8.5, Build 4.71.2173.0 Importance: Normal X-Mimeole: Produced By Microsoft MimeOLE V4.72.3612.1700 Status: RO Ny Alesund has started CB701 . The first source observed was: 1749+096 The weather conditions: Sunny with one cloud here and there. Strong wind from NNW 14 m/s. At the start of the experiment the timing was: Maser after GPS (FTS8400) by: 9.03 usec. Maser after TAC by: 8.77 usec. Maser ahead of Formatter by: 145.5 nsec. TAC ahead of Formatter by: 8.90 usec. Pointing data: Source Az/El Az-/El-offset SEFD X/S Taurusa 234/28 0.0187/0.0137 786+-1/1359+-3 Cygnusa 14/33 0.0045/0.0003 797+-2/1346+-16 IF1/IF3: 53/56 IF2: 40 Best regards, Leif Morten, Ny-Alesund VLBI-team -- Ny-Alesund Geodetiske Observatorium Ny-Alesund Geodetic Observatory Statens kartverk Norwegian Mapping Authority Boks 13 Box 13 N-9173 Ny-Alesund, Svalbard N-9173 Ny-Alesund, Svalbard NORWAY NORWAY Tlf: 7902 7010 Phone: +47 7902 7010 Faks: 7902 7148 Fax: +47 7902 7148 email address: vlbi@gdiv.statkart.no From falz@roen.inpe.br Wed May 10 14:56:26 EDT 2000 Received: from hyperion.haystack.edu (hyperion.haystack.edu [192.52.65.1]) by planck.haystack.edu (8.8.6 (PHNE_17135)/8.8.6) with ESMTP id OAA14018; Wed, 10 May 2000 14:56:25 -0400 (EDT) Received: from ivscc.gsfc.nasa.gov (ivscc.gsfc.nasa.gov [128.183.107.36]) by hyperion.haystack.edu (8.9.3+Sun/8.9.1) with ESMTP id OAA03386; Wed, 10 May 2000 14:56:23 -0400 (EDT) Received: from rapadura.roen.inpe.br by ivscc.gsfc.nasa.gov; Wed, 10 May 2000 14:48:58 -0400 Received: from rapadura.roen.inpe.br ([150.163.43.11]) by rapadura.roen.inpe.br (8.8.7/8.8.7) with ESMTP id PAA05365 for ; Wed, 10 May 2000 15:27:26 -0300 Message-Id: <4.3.1.2.20000510152447.00a6bf00@127.0.0.1> X-Sender: falz/rapadura.roen.inpe.br@127.0.0.1 X-Mailer: QUALCOMM Windows Eudora Version 4.3.1 Date: Wed, 10 May 2000 15:29:40 -0300 To: CDDISA From: ROEN Subject: CB701 START Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Status: RO Fortaleza started CB701 experiment on time observing 0552+398 - 18:30UT. Sky is clear. RH at heads is 30%. Maser to GPS offset is +13ns. Fortaleza VLBI Team MCT - INPE / ROEN From brazeau@geod.nrcan.gc.ca Wed May 10 14:57:48 EDT 2000 Received: from hyperion.haystack.edu (hyperion.haystack.edu [192.52.65.1]) by planck.haystack.edu (8.8.6 (PHNE_17135)/8.8.6) with ESMTP id OAA14039; Wed, 10 May 2000 14:57:48 -0400 (EDT) Received: from ivscc.gsfc.nasa.gov (ivscc.gsfc.nasa.gov [128.183.107.36]) by hyperion.haystack.edu (8.9.3+Sun/8.9.1) with ESMTP id OAA03471; Wed, 10 May 2000 14:57:47 -0400 (EDT) Received: from gdim.geod.nrcan.gc.ca by ivscc.gsfc.nasa.gov; Wed, 10 May 2000 14:45:06 -0400 Received: (from brazeau@localhost) by gdim.geod.nrcan.gc.ca (8.8.6 (PHNE_17135)/8.8.6) id SAA07249 for ivs-ops@ivscc.gsfc.nasa.gov; Wed, 10 May 2000 18:44:56 GMT From: Sylvain Brazeau Message-Id: <200005101844.SAA07249@gdim.geod.nrcan.gc.ca> Subject: CB701 started To: ivs-ops@ivscc.gsfc.nasa.gov (nasa; ops) Date: Wed, 10 May 2000 18:44:53 GMT X-Mailer: Elm [revision: 212.4] Status: RO Yellowknife started cb701 on time lost tape vacuum during the first checkf135, all look ok now. Hello Ed, from the toundra best regard to you. By the way we just use our last "ARIES ECCENTRICITY LOCATOR" sheet how do we get some more. Thank you at a la prochaine Yellowknife team. -- Sylvain Brazeau Geodetic Survey of Canada Ottawa, Ontario, Canada Internet: brazeau@gdim.nrcan.gc.ca From gsi32m@gaos.gsi-mc.go.jp Wed May 10 20:23:11 EDT 2000 Received: from hyperion.haystack.edu (hyperion.haystack.edu [192.52.65.1]) by planck.haystack.edu (8.8.6 (PHNE_17135)/8.8.6) with ESMTP id UAA17191; Wed, 10 May 2000 20:23:11 -0400 (EDT) Received: from ivscc.gsfc.nasa.gov (ivscc.gsfc.nasa.gov [128.183.107.36]) by hyperion.haystack.edu (8.9.3+Sun/8.9.1) with ESMTP id UAA16981; Wed, 10 May 2000 20:23:10 -0400 (EDT) Received: from gaos.gsi-mc.go.jp by ivscc.gsfc.nasa.gov; Wed, 10 May 2000 20:17:41 -0400 Received: from furudell by gaos.gsi-mc.go.jp with SMTP (1.38.193.4/16.2) id AA01868; Thu, 11 May 2000 09:17:39 +0900 Message-Id: <200005110017.AA00179@gsi32m.gaos.gsi-mc.go.jp> From: GSI VLBI group Date: Thu, 11 May 2000 09:17:39 +0900 To: ivs-ops@ivscc.gsfc.nasa.gov Subject: CB701 change band Mime-Version: 1.0 X-Mailer: AL-Mail32 Version 1.01 Content-Type: text/plain; charset=us-ascii Status: RO Tsukuba32m started CORE-B701 on time. But sorry, there is mistake for setting band. We got data at X3 band(channel 5-8). Therefor we changed from X3 band to X2 band at 23:53:38 (sorce 0119+115). ====================================================== GSI VLBI group Geographical Survey Institute, Ministry of Construction Japan e-mail:gsi32m@gaos.gsi-mc.go.jp web:http://vldb.gsi-mc.go.jp/sokuchi/vlbi/english/ ====================================================== From brazeau@geod.nrcan.gc.ca Thu May 11 16:28:15 EDT 2000 Received: from hyperion.haystack.edu (hyperion.haystack.edu [192.52.65.1]) by planck.haystack.edu (8.8.6 (PHNE_17135)/8.8.6) with ESMTP id QAA26949; Thu, 11 May 2000 16:28:14 -0400 (EDT) Received: from ivscc.gsfc.nasa.gov (ivscc.gsfc.nasa.gov [128.183.107.36]) by hyperion.haystack.edu (8.9.3+Sun/8.9.1) with ESMTP id QAA20900; Thu, 11 May 2000 16:26:43 -0400 (EDT) Received: from gdim.geod.nrcan.gc.ca by ivscc.gsfc.nasa.gov; Thu, 11 May 2000 16:16:59 -0400 Received: (from brazeau@localhost) by gdim.geod.nrcan.gc.ca (8.8.6 (PHNE_17135)/8.8.6) id UAA15033 for ivs-ops@ivscc.gsfc.nasa.gov; Thu, 11 May 2000 20:16:56 GMT From: Sylvain Brazeau Message-Id: <200005112016.UAA15033@gdim.geod.nrcan.gc.ca> Subject: CB701 end more... To: ivs-ops@ivscc.gsfc.nasa.gov (nasa; ops) Date: Thu, 11 May 2000 20:16:56 GMT X-Mailer: Elm [revision: 212.4] Status: RO Regardring the lost of Pcal for the last 1.5 hour, the probleme was the LO that got unlock. Just to let you know that data for that last 1.5 hour is probably no there. That's all. Yellowknife team. -- Sylvain Brazeau Geodetic Survey of Canada Ottawa, Ontario, Canada Internet: brazeau@geod.emr.ca From gejensen@nrcan.gc.ca Thu May 11 16:31:50 EDT 2000 Received: from hyperion.haystack.edu (hyperion.haystack.edu [192.52.65.1]) by planck.haystack.edu (8.8.6 (PHNE_17135)/8.8.6) with ESMTP id QAA26978; Thu, 11 May 2000 16:31:50 -0400 (EDT) Received: from ivscc.gsfc.nasa.gov (ivscc.gsfc.nasa.gov [128.183.107.36]) by hyperion.haystack.edu (8.9.3+Sun/8.9.1) with ESMTP id QAA21230; Thu, 11 May 2000 16:31:49 -0400 (EDT) Received: from nrn1.NRCan.gc.ca by ivscc.gsfc.nasa.gov; Thu, 11 May 2000 16:24:18 -0400 Received: from redneck (gejensen.dialupess.NRCan.gc.ca [132.156.102.50]) by nrn1.NRCan.gc.ca (8.9.3/8.9.1) with SMTP id QAA08810 for ; Thu, 11 May 2000 16:24:14 -0400 (EDT) Message-Id: <000a01bfbb8e$e1a4fe60$32669c84@redneck> From: "George Jensen" To: "IVS OPS" Subject: CB701YK.log Date: Thu, 11 May 2000 14:21:17 -0700 Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0007_01BFBB54.2B9CB340" X-Priority: 3 X-Msmail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-Mimeole: Produced By Microsoft MimeOLE V4.72.3110.3 Status: RO This is a multi-part message in MIME format. ------=_NextPart_000_0007_01BFBB54.2B9CB340 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Greetings from Yellowknife: Log file CB701yk.log transferred to ftp.cddisa.gsfc.nasa.gov in = directory /data5/vlbi/vlbigeo/may00. Phase cal was lost for the last = 1.5 hours of the experiment, and data may not be available for these = scans due to an unlocked receiver. Receiver has been repaired in the = meantime, and phasecal has returned. Regards, Yellowknife VLBI Team George Jensen - OIC Yellowknife Geophysical Observatory gejensen@nrcan.gc.ca =20 ------=_NextPart_000_0007_01BFBB54.2B9CB340 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 
   Greetings from=20 Yellowknife:
 
   Log file CB701yk.log = transferred to=20 ftp.cddisa.gsfc.nasa.gov in directory /data5/vlbi/vlbigeo/may00.  = Phase cal=20 was lost for the last 1.5 hours of the experiment, and data may not be = available=20 for these scans due to an unlocked receiver.  Receiver has been = repaired in=20 the meantime, and phasecal has returned.
 
   Regards,
 
   Yellowknife VLBI = Team
   George Jensen - = OIC
   = Yellowknife=20 Geophysical Observatory
   gejensen@nrcan.gc.ca
 
   =
------=_NextPart_000_0007_01BFBB54.2B9CB340-- From daniels@geod.nrcan.gc.ca Fri May 12 11:16:31 EDT 2000 Received: from hyperion.haystack.edu (hyperion.haystack.edu [192.52.65.1]) by planck.haystack.edu (8.8.6 (PHNE_17135)/8.8.6) with ESMTP id LAA03028; Fri, 12 May 2000 11:16:31 -0400 (EDT) Received: from ivscc.gsfc.nasa.gov (ivscc.gsfc.nasa.gov [128.183.107.36]) by hyperion.haystack.edu (8.9.3+Sun/8.9.1) with ESMTP id LAA24528; Fri, 12 May 2000 11:16:30 -0400 (EDT) Received: from gemini.gsfc.nasa.gov by ivscc.gsfc.nasa.gov; Fri, 12 May 2000 11:08:13 -0400 Received: from ngis.geod.nrcan.gc.ca (IDENT:root@ngis.geod.nrcan.gc.ca [132.156.28.1]) by gemini.gsfc.nasa.gov (8.9.3/8.9.3) with ESMTP id LAA19351 for ; Fri, 12 May 2000 11:08:11 -0400 (EDT) Received: from geod.nrcan.gc.ca (w5-ott-mdaniels.geod.nrcan.gc.ca [132.156.29.39]) by ngis.geod.nrcan.gc.ca (8.9.3/8.9.3) with ESMTP id LAA23994 for ; Fri, 12 May 2000 11:08:03 -0400 Message-Id: <391C1F3D.A85E02E5@geod.nrcan.gc.ca> Date: Fri, 12 May 2000 11:11:57 -0400 From: Mike Daniels Organization: Geodetic Survey of Canada X-Mailer: Mozilla 4.5 [en] (WinNT; U) X-Accept-Language: en Mime-Version: 1.0 To: CDDIS mail address Subject: NA367 and CB701 tapes shipped, logs transferred Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Status: RO Hello Out There! Algonquin Park Observatory shipped 3 tapes (HSF00273 887C, HSF00512 DE54 and NGS00221 BAB2) used for NA367 experiment to USNO via USAir with Waybill # 037 702 8641. These three tapes should go out of Ottawa this afternoon. ARO shipped 2 tapes (NOAA0244 5BF3 and NGS00425 7CB3) used for CB701 experiment to Haystack Observatory via FedEx with Waybill # 8137 5112 9173. These two tapes should go out today from Ottawa. Log files for both experiments have been transferred. Regards ARO Crew From weh@ivscc.gsfc.nasa.gov Mon May 15 11:34:49 EDT 2000 Received: from newton.haystack.edu (newton.haystack.edu [192.52.61.91]) by planck.haystack.edu (8.8.6 (PHNE_17135)/8.8.6) with ESMTP id LAA18783; Mon, 15 May 2000 11:34:39 -0400 (EDT) Received: from ivscc.gsfc.nasa.gov (ivscc.gsfc.nasa.gov [128.183.107.36]) by newton.haystack.edu (8.8.6 (sendmail_886_v2)/8.8.6) with ESMTP id LAA14472; Mon, 15 May 2000 11:34:54 -0400 (EDT) Received: from arcturus.gsfc.nasa.gov by ivscc.gsfc.nasa.gov; Mon, 15 May 2000 11:33:35 -0400 Message-Id: <392018D5.DE3E7FF6@ivscc.gsfc.nasa.gov> Date: Mon, 15 May 2000 11:33:41 -0400 From: Ed Himwich Reply-To: weh@ivscc.gsfc.nasa.gov X-Mailer: Mozilla 4.61 [en] (Win98; U) X-Accept-Language: en Mime-Version: 1.0 To: Alexandr Volvach Cc: Cindy Colbert Thomas , Nancy Vandenberg , reclist@ivscc.gsfc.nasa.gov, sessions@ivscc.gsfc.nasa.gov Subject: Re: cb701-crimea References: <200005091835.OAA15494@gemini.gsfc.nasa.gov> <001001bfbe3a$a7088fc0$e302010a@default> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Status: RO Hi, Alexandr Volvach wrote: > > Crimea finished experiment CB701. > SEFD, measured at the end using Vir-A at El=57 deg., were 970(X) > and 1280(S) Jy. Pointing seems good. > We have problem with cal and clocks command. > 16 pass (05:05, 05:10, 09:33-10:29, 12:08-12:32, 13:25, 13:53, 14:44, 15:14) > were omitted because we had problems with s-band. > 3 pass (08:15, 08:23, 11:31) were omitted because we had problems with pass of > head. It looks in your log like only head 2 had problems positioning. This should nit cause problems with the data, but may affect the parity checks. Can you fix this problem? The parity errors in your log are quite bad. This is apparently not related to the positioning problem. Have been able to do any work on this? Best regards, Ed > The weather was sunny. > > Log put on cddisa. > > Best regards, > N. Nesterov, P.Nikitin and A. Volvach. From weh@ivscc.gsfc.nasa.gov Mon May 15 19:32:02 EDT 2000 Received: from newton.haystack.edu (newton.haystack.edu [192.52.61.91]) by planck.haystack.edu (8.8.6 (PHNE_17135)/8.8.6) with ESMTP id TAA01997; Mon, 15 May 2000 19:32:02 -0400 (EDT) Received: from ivscc.gsfc.nasa.gov (ivscc.gsfc.nasa.gov [128.183.107.36]) by newton.haystack.edu (8.8.6 (sendmail_886_v2)/8.8.6) with ESMTP id TAA14937; Mon, 15 May 2000 19:32:19 -0400 (EDT) Received: from client-151-200-116-160.bellatlantic.net by ivscc.gsfc.nasa.gov; Mon, 15 May 2000 19:31:51 -0400 Message-Id: <39208950.4F865DAF@ivscc.gsfc.nasa.gov> Date: Mon, 15 May 2000 19:33:36 -0400 From: Ed Himwich Reply-To: weh@ivscc.gsfc.nasa.gov X-Mailer: Mozilla 4.5 [en] (Win98; U) X-Accept-Language: en Mime-Version: 1.0 To: reclist@ivscc.gsfc.nasa.gov Subject: [Fwd: cb701-crimea] Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Status: RO Alexandr Volvach wrote: > > Hi, > > > Alexandr Volvach wrote: > > > > > > Crimea finished experiment CB701. > > > SEFD, measured at the end using Vir-A at El=57 deg., were 970(X) > > > and 1280(S) Jy. Pointing seems good. > > > We have problem with cal and clocks command. > > > 16 pass (05:05, 05:10, 09:33-10:29, 12:08-12:32, 13:25, 13:53, 14:44, > 15:14) > > > were omitted because we had problems with s-band. > > > 3 pass (08:15, 08:23, 11:31) were omitted because we had problems with pass > of > > > head. > > > > It looks in your log like only head 2 had problems positioning. This > > should nit cause problems with the data, but may affect the parity > > checks. Can you fix this problem? > > The parity errors in your log are quite bad. This is apparently not > > related to the positioning problem. Have been able to do any work on > > this? > > I was grateful if you prompt as to fix this problem. > Before cb701 we have put the new head 2 (sending by Thomas Buretta)- with old > we have > problem with twisted pair. We change wholly: read interface filter, head > interface > board and twisted pair. > Can you help me? > > thanks, > sasha From brazeau@geod.nrcan.gc.ca Tue May 16 10:38:15 EDT 2000 Received: from hyperion.haystack.edu (hyperion.haystack.edu [192.52.65.1]) by planck.haystack.edu (8.8.6 (PHNE_17135)/8.8.6) with ESMTP id KAA05490; Tue, 16 May 2000 10:38:15 -0400 (EDT) Received: from ivscc.gsfc.nasa.gov (ivscc.gsfc.nasa.gov [128.183.107.36]) by hyperion.haystack.edu (8.9.3+Sun/8.9.1) with ESMTP id KAA00632; Tue, 16 May 2000 10:38:10 -0400 (EDT) Received: from gdim.geod.nrcan.gc.ca by ivscc.gsfc.nasa.gov; Tue, 16 May 2000 10:31:20 -0400 Received: (from brazeau@localhost) by gdim.geod.nrcan.gc.ca (8.8.6 (PHNE_17135)/8.8.6) id OAA18226 for ivs-ops@ivscc.gsfc.nasa.gov; Tue, 16 May 2000 14:31:15 GMT From: Sylvain Brazeau Message-Id: <200005161431.OAA18226@gdim.geod.nrcan.gc.ca> Subject: cb701 Yellowknife tapes To: ivs-ops@ivscc.gsfc.nasa.gov (nasa; ops) Date: Tue, 16 May 2000 14:31:15 GMT X-Mailer: Elm [revision: 212.4] Status: RO The tapes from Yellowknife CB701 were ship today may 16 via FEDEX Tracking# 8137 5112 9162 Also a video converter is part of this shipment. It's sent for repaire to Haystack MA. -- Sylvain Brazeau Geodetic Survey of Canada Ottawa, Ontario, Canada Internet: brazeau@geod.emr.ca From volvach@crao.crimea.ua Tue May 23 03:13:55 EDT 2000 Received: from hyperion.haystack.edu (hyperion.haystack.edu [192.52.65.1]) by planck.haystack.edu (8.8.6 (PHNE_17135)/8.8.6) with ESMTP id DAA01266; Tue, 23 May 2000 03:13:54 -0400 (EDT) Received: from ivscc.gsfc.nasa.gov (ivscc.gsfc.nasa.gov [128.183.107.36]) by hyperion.haystack.edu (8.9.3+Sun/8.9.1) with ESMTP id DAA02905; Tue, 23 May 2000 03:13:34 -0400 (EDT) Received: from astro.crao.crimea.ua by ivscc.gsfc.nasa.gov; Tue, 23 May 2000 03:06:52 -0400 Received: from default (rt22 [10.1.2.227]) by astro.crao.crimea.ua (8.10.0/8.10.0) with SMTP id e4N74ht21893; Tue, 23 May 2000 10:05:39 +0300 (EET DST) Message-Id: <00c201bfc484$d0794980$e302010a@default> From: "Alexandr Volvach" To: Cc: "Dave Shaffer" Subject: cb701 - begin Date: Tue, 23 May 2000 09:50:20 +0300 Mime-Version: 1.0 Content-Type: text/plain; charset="koi8-r" Content-Transfer-Encoding: 7bit X-Priority: 3 X-Msmail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2314.1300 X-Mimeole: Produced By Microsoft MimeOLE V5.00.2314.1300 Status: RO Crimea started schedule CB701. GPS-Mark3 offset was 0.3 microseconds. SEFDs = 800(X)/1300(S) measured using Tau-A at H = 45 deg. Pointing seems good, Mk III and Recorder are okay. We have problem with cal and clocks command. N. Nesterov, P.Nikitin and A. Volvach. From volvach@crao.crimea.ua Tue May 23 03:13:56 EDT 2000 Received: from hyperion.haystack.edu (hyperion.haystack.edu [192.52.65.1]) by planck.haystack.edu (8.8.6 (PHNE_17135)/8.8.6) with ESMTP id DAA01270; Tue, 23 May 2000 03:13:55 -0400 (EDT) Received: from ivscc.gsfc.nasa.gov (ivscc.gsfc.nasa.gov [128.183.107.36]) by hyperion.haystack.edu (8.9.3+Sun/8.9.1) with ESMTP id DAA02906; Tue, 23 May 2000 03:13:35 -0400 (EDT) Received: from astro.crao.crimea.ua by ivscc.gsfc.nasa.gov; Tue, 23 May 2000 03:07:17 -0400 Received: from default (rt22 [10.1.2.227]) by astro.crao.crimea.ua (8.10.0/8.10.0) with SMTP id e4N75gt21907; Tue, 23 May 2000 10:05:43 +0300 (EET DST) Message-Id: <00c301bfc484$d2aacf80$e302010a@default> From: "Alexandr Volvach" To: Cc: "Dave Shaffer" Subject: cb701 finish Date: Tue, 23 May 2000 09:50:25 +0300 Mime-Version: 1.0 Content-Type: text/plain; charset="koi8-r" Content-Transfer-Encoding: 7bit X-Priority: 3 X-Msmail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2314.1300 X-Mimeole: Produced By Microsoft MimeOLE V5.00.2314.1300 Status: RO Crimea finished experiment CB701. SEFD, measured at the end using Vir-A at El=57 deg., were 970(X) and 1280(S) Jy. Pointing seems good. We have problem with cal and clocks command. 16 pass (05:05, 05:10, 09:33-10:29, 12:08-12:32, 13:25, 13:53, 14:44, 15:14) were omitted because we had problems with s-band. 3 pass (08:15, 08:23, 11:31) were omitted because we had problems with pass of head. The weather was sunny. Log put on cddisa. Best regards, N. Nesterov, P.Nikitin and A. Volvach From PWolken@jftl.jpl.nasa.gov Fri May 19 14:18:44 EDT 2000 Received: from hyperion.haystack.edu (hyperion.haystack.edu [192.52.65.1]) by planck.haystack.edu (8.8.6 (PHNE_17135)/8.8.6) with ESMTP id OAA12515 for ; Fri, 19 May 2000 14:18:43 -0400 (EDT) Received: from jftl.jpl.nasa.gov (jftl.jpl.nasa.gov [128.149.117.25]) by hyperion.haystack.edu (8.9.3+Sun/8.9.1) with ESMTP id OAA28680 for ; Fri, 19 May 2000 14:18:42 -0400 (EDT) Received: by jftl.jpl.nasa.gov with Internet Mail Service (5.5.2650.21) id <2N7NJ4TJ>; Fri, 19 May 2000 11:18:40 -0700 Message-ID: From: "Wolken, Pamela R." To: "'Brian Corey'" , "'Axel Nothnagel'" Cc: "Martinez, George" , "'Cynthia Colbert Thomas'" Subject: FW: DSS-65 S-Band wrong setting in the polarization path Date: Fri, 19 May 2000 11:18:40 -0700 Importance: high X-Priority: 1 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Status: RO This is all of the information so far, but be alert to correlating problems on CB701 & Euro56. regards, p > -----Original Message----- > From: Perea, Jose A > Sent: Friday, May 19, 2000 9:32 AM > To: Wolken, Pamela R.; Martinez, George > Cc: Naudet, Charles J; LuValle, John V; Poon, Peter T; Calderon, > Cristina; Resch, George M; Clark, John Eric > Subject: DSS-65 S-Band wrong setting in the polarization path > Importance: High > > According with local investigations, all experiments using DSS-65 antenna > and S-Band > have a wrong setting in the polarization path since DOY 041. Technical > explanations will > follow in a more detailed station report. > > The following past experiments could be affected: > > Core-b on DOY's 131/132 > Euro56 on DOY's 136/137 > > Regards > > > ============================================ > Mail address : Jose A. Perea // INSA > Radioastronomy - MDSCC > Orense nr. 4 - MADRID 28020 ( SPAIN ) > E-Mail address : Jose.A.Perea@jpl.nasa.gov > japerea@teleline.es > Telephone Nr. : +34 91 867 7130 > FAX Nr. : +34 91 867 7185 > ============================================ >