GTAC Observation Log

1. Date : 16/07/2015
2. Observation Sr. No. : 7920
3. Observer : Jayaram Narayanan Chengalur, Igor Karachentsev
4. Observer's Email : chengalur@ncra.tifr.res.in, ikar@sao.ru
5. Project Name : HI in the most gas rich galaxies in the local volume
6. Project Code : 28_056
7. Operator(s) : Navnath, Rupsing
8. Command File : /odisk/gtac/cmd/chengalu/vcc0169.cmd
9. LTA File : /gsbifrdata1/16jul/28_056_16jul2015_8s.lta
10. LogFlag File : /odisk/online1/logflags/28_056.FLAGS

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1399.5635 MHz ,RF2 : 1399.5635 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1340 MHz, ILO2 : 1340MHz , IVLO1 : 59.5635 MHz, IVLO2 : 59.5635 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+4 dB, 16 MHz,OFF, IF-CH2 : 12+12 dB, 16 MHz,OFF

GSB SETTINGS :

14. GSB Host : gsbm1
15. GSB Mode : Realtime
16. GSB LTA : 8
17. GSB CTRL : ONLINE
18. GSB Fstop : ON
19. GAIN EQ : ON
20. Stokes : Total_Intensity
21. Beam - 1 : OFF
22. Beam - 2 : OFF
23. ACQ BW : 16.666666 MHz
24. Final BW : 4 MHz; Step # 2
25. Maximum Channels : 512
26. Channel Numbers : 0:511:1
27. LO5 -1  : 140.4365
28. LO5 -2  : 164.5635

29. Frequency Parameters (TPA) : 1399.5635 1399.5635 1340 1340 59.5635 59.5635
30. Integration Time : 8.053 Sec
31. No of Antennas Working(Fringing) at the beginning :23

32. Name of Non-Working Antennas (with reason for each) :
C03 : ABC Time out
C10 : AZ/El Brakes
C13 : BLDC Work
C14 : AZ/EL Brakes
E05 : Servo problem
S03 : Brakes Not Releasing.
S06 : MCM 5 Timeout ( 1390 Mhz Sub band selected---Low fringe)

33. Note for Backup :

34. Start and End Time of Obs.(IST): 16 Jul 2015 17:00:00 - 16 Jul 2015 22:00:00

35. ONLINE Machine : Shivneri

36. No of Antennas Working(Fringing) at the end :27

37. Comments (During Observations) :
16:00 : Started Feed rotation and Pointing.
16:15 : S01 Released for observation Ref. Sandip Roy & Gourav.
16:20 : Feed Calibration And Ration done at L Band.
16:30 : 1390 Mhz pntg setup done. (Ant Counts :24)
17:13 : C03 Released for observation -Ganesh Thorat.Ant Counts :25
17:25 : C10 Released For observation - Amit Kumar (Ant Counts :26)
17:30 : C14 Released for Observation - Amit Kumar (Ant Counts :27)
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17:30 : Started setup for pntg at 1390Mhz
17:40 : Started PNTG Run file.
18:25 : pntg done.
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18:31 : Started scan on 3C286 for 8 min.
18:43 : Started cmd file.
   
   /odisk/gtac/cmd/chengalu/vcc0169.cmd

22:23 : Started scan on 3C286 for 10min.
22:35 : Observation session over
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