IVS-OHIG69         
        (Continuous Observations of the Rotation of the Earth
            and South terrestical reference frame network)
                        2010 Feb.10-11   
                          doy 041-042 
            Insitute for Geodesy and Geoinformtion 
              of the University of Bonn, Germany
	    
Correlator:  Bonn                                      

Purpose
=======
The purpose of the IVS-OHIG (Southern Terrestrial Reference Frame) sessions
is to tie together optimally the sites in the southern hemisphere.    
Because these sessions concentrate on the southern sites and do not use
observing time to accurately tie these sites to far northern sites (as
the Global Sessions do) they should yield a very accurate regional TRF
around the South Pole.                                                           

Schedule
========
This is a schedule generated with the automatic mode of sked using 
the variable scan length with a minimum of 60 seconds. The most recent 
and updated source flux models are included. SNR goals are 20/18 at  
X-band and 20/18 at S-band for all stations.
The predicted  SNRs used include a 30 ps noise contribution added
in quadrature, which is a typical size for the reweight constants
size for the reweight constants required in SOLVE solutions.

This schedule was optimized by different features:                
 - the  covariance analysis during schedule generation considers
   the previous 2 hours of observations,
 - minor SKED optimization parameters
   . maximum number of observations,
   were optimized over the best  (in a covariance sense) 75% of
   the possible observations, this produces a somewhat  more even
   sky distribution,
 - observations were weighted by their expected  SNRs,
 - 30 ps noise contribution added,
 - mimimum time between observations of the same radio source was
   set to 20 min
 - use of CvgONLY in order to improve the geometry of observation
This schedule was made using 60 sources which helped improve the sky
coverage.

Procedures
==========
Please generate the procedures for this session using drudg.
Except of Syowa station who have to prepare K5 setup procedures
with the existing skd file.

NO  PREPASS  TIME: There is no time allowed in the  schedule  for
prepassing tapes. Therefore all tapes needed for this  experiment
must be pre-checked before the start of this experiment.

FREQUENCY SEQUENCE: Up to now we record in a new frequency sequence
called EUR-T2 with a channel bandwith of 4 Mhz and 16 tracks.
See more details in the section irecording mode in this file.                                      
 
Comments
========
Processing should start in April/May this year when Syowa support us
with the recorded data via eVLBI. When Syowa data will not received
in this time period, we will processed the data without Syowa.

Hobart12 will participate in tag along mode.

Session Notes for session: ohig69.skd
===========================================================
 Experiment: OHIG69                      Description IVS-OHIG69
 Scheduler:  mueskens                    Correlator: BONN      
 Start:      2010-041-18:00:00           End:        2010-042-18:00:01
 Current yyyyddd:    2010041 (2010.11)  ( 15238 MJD, WED. 10FEB.)
 Greenwich sidereal time:    3:22: 0.00 (18: 0: 0 UT)
 Sun's RA and DEC:   21h 37.0m   -14d 12.6
===========================================================
For Ohiggins station, we have in particular some off-time recordings,
due to satellite observing.
===========================================================
First observations
Source      Start      DURATIONS               
name     yyddd-hhmmss   Hb  Ho  Kk  Oh  Sy  Tc  
0537-441 10041-180000| 427 154   0 353 427    |
1334-127 10041-180556|      40  40            |
2136+141 10041-180821|         339 840     840|
Last observations
1749+096 10042-174015|         154         154|
1606+106 10042-174359|     127 127            |
0607-157 10042-174401|             314 314    |
1334-127 10042-174754|  40  40  40            |
3C274    10042-175005|     145 145            |
1156+295 10042-175349|     137 137            |
===========================================================
 Average number of obs. per baseline per source(normalized by up-time) =   2.9
 Min =    0.0  Max =   50.1 (Baseline Kk-Sy on 1334-127)   RMS =   7.0
 Total time:       1436 minutes (  23.9 hours).
 Key:     Hb=HOBART12   Ho=HOBART26   Kk=KOKEE      Oh=OHIGGINS   Sy=SYOWA   
          Tc=TIGO    
                   Hb   Ho   Kk   Oh   Sy   Tc  Avg  
 % obs. time:      13   47   42   76   70   71   53
 % cal. time:       1    3    3    2    2    1    2
 % slew time:       1   37   10   11    3    5   12
 % idle time:      84   11   44   10   23   22   33
 total # scans:    50  299  216  137  181  125  168
 # scans/hour :     2   12    9    6    8    5    7
 Avg scan (sec):  226  135  167  480  334  490  305
 # data tracks:    16   16   16   16   16   16
 # Mk5 tracks:     16   16   16   16   16   16
 Total GBytes:    203  727  650 1185 1089 1103  826
 Total GB(M5):    180  646  578 1053  968  980  734
 Total GBytes (M5) recorded:  4405.5
      # OF OBSERVATIONS BY BASELINE 
  |  Hb   Ho   Kk   Oh   Sy   Tc  StnTotal
----------------------------------------
Hb|       49   31   21   27    9     137      
Ho|           167   53  129   26     424      
Kk|                 28   10   58     294      
Oh|                      88   83     273      
Sy|                           49     303      
Tc|                                  225      
 Total # of scans, observations:   415      828
===========================================================
Recording mode
  Name  Code 
EUR2-SX  SX
Recording mode setup for:
  HOBART12 HOBART26 KOKEE    OHIGGINS SYOWA    TIGOCONC 
  Mode      Tot.Rate      Tot.BandW  #chan #bits  Barrel
 Mk341:2   128.000 Mbits   64.000 MHz   14   1     NONE
  Chan.BW  #Subpasses  Tracks(*fan)  Tot.tracks  Speed
  4.00 MHz      1         16(*2)        32       0.00
  X-band spanned bw=   360.0 MHz       rms spanned bw=   140.2 MHz
  S-band spanned bw=    80.0 MHz       rms spanned bw=    30.2 MHz
  Effective number of channels recorded per sub-pass
          X         S         Total
         10.000     6.000    16.000
===========================================================