+HEADER
 CORREL   OSO
 DATABASE 19APR24VB
 SESSNAME ON9114
 OBSTIME  2019/04/24
 UTSTART  1800
 DURATION 3.5
 DOY      114
 CORRTIME 2020/02/11
 CORRPASS 1
 EXPORT   DONE

+SUMMARY
 Qcode  % of Total   % of Correlated
             scans        scans
 5-9           -          98.00%
 0             -           2.00%
 4-1,A-H,N     -           0.00%
 REMOVED       -           -

+CORRELATOR_NOTES
 -Correlated as k19114, renamed for post-processing.
 -On observed R-pol 8x16MHz channels, 
  Oe observed X and Y pols 8x32MHz channels. 
 -Correlated using DiFX 2.6.1, using Zoomband to match the 16MHz.
 -Processed using difx2mark4 v1.6, HOPS 3.21. 
  Oe-On fringefit done using "-P XR+YR" in fourfit.
 -On pcal turned off to avoid cross-correlating pcal Oe-On. 
  Cable cal present in logfiles.
 -Ow did not participate although originally planned to.
 -Logfile pressure values overwritten by updateLogPressureData.py;
  The change in pressure w.r.t original wx value (from 
  pressure sensor at OSO weather station) is
  P_new = P_ref * (1 - 0.0000226*(h - h_ref))^5.225
  [H Berg. Allgemeine Meteorologie: Einfuhrung in die 
  Physik der Atmosphare. Dummler, 1948.]
  where P_ref is the original wx value, h is the height
  of On (59.3 m), Oe (53.2 m) or Ow (53.2 m), and 
  h_ref is the height of the OSO pressure sensor (46.6 m).
  The approximate changes with respect to the original
  wx values (now modified) are:
  On = -1.5 hPa
  Oe = -0.8 hPa
  Ow = -0.8 hPa.
 -Submitted vgosDb contains 3 wrappers:
  v1: vgosDbMake
  v2: vgosDbCalc
  v3: vgosDbProcLogs

+STATION_NOTES
 ONSALA60 (On/X): Applied manual pcal.
 ONSA13NE (Oe/S): Ok.
 ONSA13SW (Ow/T): Did not participate.

+DROP_CHANNELS
 On
 Oe
 Ow

+MANUAL_PCAL On

+CHANNELS
 Channels: X00LX/Y = band|channel#|sideband|polarizations|notes
 X00UR/X/Y freq@8213.99/bw@16.0
 X01UR/X/Y freq@8253.99/bw@16.0
 X02UR/X/Y freq@8353.99/bw@16.0
 X03UR/X/Y freq@8513.99/bw@16.0
 X04UR/X/Y freq@8733.99/bw@16.0
 X05UR/X/Y freq@8853.99/bw@16.0
 X06UR/X/Y freq@8873.99/bw@16.0
 X07UR/X/Y freq@8933.99/bw@16.0

+CLOCKS
 Clocks: OSO
 Station  fmout-gps    Used        Rate  Comments
             [usec]  [usec]   [sec/sec]
 On          -26.22   -0.20        0.00  Reftime 2019y115d12h00m0s.
 Oe          -26.40   +3.35        0.00  Reftime 2019y115d12h00m0s.
 NOTE: Correlated before knowing about peculiar offsets; hence only
 the relative time is correct in these data.

+QCODES
 Qcod 0 1 2 3 4 5 6 7 8  9 A B C D E F G H N Tot
 -----------------------------------------------
 SX:X 2 0 0 0 0 0 1 2 2 93 0 0 0 0 0 0 0 0 0 100
 -----------------------------------------------
 Tot  2 0 0 0 0 0 1 2 2 93 0 0 0 0 0 0 0 0 0 100
 Legend:
 QC = 0   Fringes not detected.
    = 1-9 Fringes detected, no error condition. Higher #, better quality.
    = B   Interpolation error in fourfit.
    = D   No data in one or more frequency channels.
    = E   Maximum fringe amplitude at edge of SBD, MBD, or rate window.
    = F   Fork problem in processing.
    = G   Fringe amp in a channel is <.5 times mean amp (only if SNR>20).
    = H   Low Phase-cal amplitude in one or more channels.
    = N   No valid correlator data.
    = Tot Total number of Qcodes in row/column.

+SNR_RATIOS
 Not applicable due to incorrect SKED prediction due to incorrect SEFDs
 for antennas at skeduling time. Minimum scan length of 30 seconds was used.

+FOURFIT_CONTROL_FILE
*--------------------------------------------------------------
* Fourfit control file
*---------------------
notches
* pcal notches not needed
* Known RFI
8911.49 8912.49
8975.49 8976.49
8783.49 8784.49
8271.00 8273.00
8527.00 8529.00
*
* general fit params
freqs a b c d e f g h 
samplers 1 abcdefgh
*
if station X
 pc_mode manual
if station S
 sampler_delay_y -64 * ns
 sampler_delay_x -65 * ns
 pc_mode multitone
 pc_period 1
* phases derived on scan 114-2009
 pc_phases_y abcdefgh   98.4 -142.0  -50.9  -75.4 -197.8  -38.9 -244.8 -173.2
 pc_phases_x abcdefgh  168.2  285.8    4.5   96.9  268.4   51.2  208.7  285.0 
*--------------------------------------------------------------
+END