GTAC Observation Log

1. Date : 14/06/2017
2. Observation Sr. No. : 9488
3. Observer : Alka Mishra, Ramya Sethuram, SMITHA SUBRAMANIAN, Mousumi Das, Lei Hao
4. Observer's Email : alkam7@gmail.com, sramyaraman@gmail.com, smithaharisharma@gmail.com, chandaniket@gmail.com, haol@shao.ac.cn
5. Project Name : HI  observations of Giant Low Surface Brightness galaxies: Revealing the true nature of extended disks
6. Project Code : 32_027
7. Operator(s) : Deepak, Rupsing, Shilpa
8. Command File : /odisk/gtac/cmd/32_027/14jun17/obs_jun14.cmd
9. LTA File : /gsbifrdata1/14jun/32_027_14jun2017.lta
10. LogFlag File : /odisk/online1/logflags/32_027.FLAGS.2

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1355 MHz ,RF2 : 1355 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1290 MHz, ILO2 : 1290MHz , IVLO1 : 65 MHz, IVLO2 : 65 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 16 MHz,ON, IF-CH2 : 4+14 dB, 16 MHz,ON

GSB SETTINGS :

14. GSB Host : gsbm1_shivneri
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 # 1
25. Maximum Channels : 256
26. Channel Numbers : 0:255:1
27. LO5 -1  : 135
28. LO5 -2  : 170

29. Frequency Parameters (TPA) : 1355 1355 1290 1290 65 65
30. Integration Time : 16.1061 Sec
31. No of Antennas Working(Fringing) at the beginning :27

32. Name of Non-Working Antennas (with reason for each) :
C02 : Maintenance.
C13 : Servo problem.
S04 : Low fringe.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 14 Jun 2017 04:00:00 - 14 Jun 2017 09:11:00

35. ONLINE Machine : Shivneri

36. No of Antennas Working(Fringing) at the end :25

37. Comments (During Observations) :
04:00 : Started settings.
04:17 : Started scan on 3C48 for 12min.
04:44 : '/odisk/gtac/cmd/32_027/14jun17/obs_jun14.cmd' command file started.
07:33 : C14 taken for maintenance.

08:48 : Stopped command file.
08:53 : Started scan on 3C48.
        W01 shwos low fringe.
09:11 : Stopped scan and observing session over.