CRDS-77 (Southern Hemisphere Astrometry)

	       	       	2015 May 19 (DOY 139)

			  Notes prepared by
		   Alan Fey, U.S. Naval Observatory


Schedule name: crds77.skd 

Nominal Start: 17:30 U.T. on 2015 May 19 (DOY 139)
   first observation at 17:30 U.T. on 1633-810 Hh-Hb-Ho-Ke-Ww-Yg

Duration:  24 hours 

Nominal Stop:  17:30 U.T. on 2015 May 20 (DOY 140)
    last observation at 17:22 U.T. on 1633-810 Hh-Hb-Ho-Ke-Ww-Yg

Correlator:  WACO at Washington, DC

Station        Codes    # of tapes   # of obs     Occupation Code
HARTRAO	       J                     146
HOBART12                             146
HOBART26                             144
KATH12M                              122
WARK12M                              117
YARRA12M                             141

Total number of observations (delay measurements): 1917
Total number of scans in the schedule: 146

Purpose
=======
Astrometric observations to strenghten the ICRF in the Southern
Hemisphere.

Schedule
========
This is a new schedule generated by Alan Fey using sked.

Correlation
===========
Data should be shipped to the correlator as soon after the experiment
as practical.

Special procedures
==================
None

Summary
=======
The following listing is a summary of the observations in this schedule.


 Average number of obs. per baseline per source(normalized by up-time) =   7.3
 Min =    1.5  Max =   30.3 (Baseline Hh-Ww on 1313-333)   RMS =   4.5

 Total time:       1440 minutes (  24.0 hours).

 Key:     Hh=HARTRAO    Hb=HOBART12   Ho=HOBART26   Ke=KATH12M    Ww=WARK12M 
          Yg=YARRA12M
                   Hh   Hb   Ho   Ke   Ww   Yg  Avg  
 % obs. time:      71   71   70   59   57   69   66
 % cal. time:       1    1    1    1    1    1    1
 % slew time:      27    3   14    2    2    3    9
 % idle time:       1   24   14   37   40   26   24
 total # scans:   146  146  144  122  117  141  136
 # scans/hour :     6    6    6    5    5    6    6
 Avg scan (sec):  420  420  420  420  420  420  420
 # data tracks:    16   16   16   16   16   16
 # Mk5 tracks:     16   16   16   16   16   16
 Total TB(M5):    2.0  2.0  1.9  1.6  1.6  1.9  1.8

      # OF OBSERVATIONS BY BASELINE 
  |  Hh   Hb   Ho   Ke   Ww   Yg  Total   
----------------------------------------
Hh|      146  144  122  117  141     670      
Hb|           144  122  117  141     670      
Ho|                122  117  141     668      
Ke|                     106  122     594      
Ww|                          115     572      
Yg|                                  660      


 Number of  2-station scans:    2
 Number of  3-station scans:    1
 Number of  4-station scans:   12
 Number of  5-station scans:   25
 Number of  6-station scans:  106
Total number of scans:          146
Total number of obs:           1917
Total integrated obs-time:   805140
Average obs-time:             420.0
Histogram of observation durations
Dur:     420#Obs:     Average X-band SNRs by baseline
  |   Hh   Hb   Ho   Ke   Ww   Yg  AVG
---------------------------------------
Hh|       31   58   30   23   27   34      
Hb|            34   18   14   16   23      
Ho|                 33   26   30   37      
Ke|                      13   15   22      
Ww|                           12   18      
Yg|                                20      
Average S-band SNRs by baseline
  |   Hh   Hb   Ho   Ke   Ww   Yg  AVG
---------------------------------------
Hh|       24   60   25   19   26   31      
Hb|            30   12    9   13   18      
Ho|                 31   24   33   36      
Ke|                      10   14   19      
Ww|                           11   15      
Yg|                                20