GTAC Observation Log

1. Date : 13/12/2015
2. Observation Sr. No. : 8251
3. Observer : A.R. Rao, Varsha Chitnis, KP Singh, Gulab Chand Dewangan, Dipankar Bhattacharya, C.H. IshwaraChandra, Ranjeev Misra, C.S. Stalin, Santosh Vadawale, Sachindra Naik, Biswajit Paul, Amit Shukla
4. Observer's Email : arrao@tifr.res.in, vchitnis@tifr.res.in, singh@tifr.res.in, gulabd@iucaa.ernet.in, dipankar@iucaa.ernet.in, ishwar@ncra.tifr.res.in, rmisra@iucaa.ernet.in, stalin@iiap.res.in, santoshv@prl.res.in, snaik.prl@gmail.com, bpaul@rri.res.in, amit008@gmail.com
5. Project Name : Understanding the X-ray jet emission in 3C273
6. Project Code : 29_078
7. Operator(s) : Nilesh, Rupsing, Surender
8. Command File : /odisk/gtac/cmd/29_078/obs.cmd
9. LTA File : /gsbifrdata1/13dec/29_078_suba4_lband_13dec2015.lta, /gsbifrdata1/13dec/29_078_suba2_dual_13dec2015.lta
10. LogFlag File : /odisk/online1/logflags/29_078.FLAGS

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1371 MHz ,RF2 : 1371 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1320 MHz, ILO2 : 1320MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 32 MHz,ON, IF-CH2 : 4+14 dB, 32 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 : 33.333333 MHz
24. Final BW : 33.333333 MHz; Step # 
25. Maximum Channels : 256
26. Channel Numbers : 0:255:1
27. LO5 -1  : 149
28. LO5 -2  : 156

29. Frequency Parameters (TPA) : 1371 1371 1320 1320 51 51
30. Integration Time : 16.1061 Sec
31. No of Antennas Working(Fringing) at the beginning :26

32. Name of Non-Working Antennas (with reason for each) :
C00 : Servo problem.
C10 : Servo problem.
C13 : Feed cage painting.
W01 : BLDC installation.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 13 Dec 2015 03:00:00 - 13 Dec 2015 12:00:00

35. ONLINE Machine : Shivneri

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

37. Comments (During Observations) :
03:10  : Started settings.

subar 4 : 1390 MHz Default, ALC ON, tpa 1371 1371 1320 1320 51 51.
          BAND covers (1371+33.333333 MHz).
subar 2 : 610/235 MHz Default, ALC ON, tpa 629 253 680 304 51 51.
          BAND covers (630-33.333333 MHz for 130 pol).
          BAND covers (253-33.333333 MHz for 175 pol).
03:31 : Started scan on 3C147 for ~ 21 min.
04:01 : Started command file.
09:31 : C04 taken for painting.
10:15 : C00 and C10 released for observation.
11:42 : Stopped command file.
11:45 : Started scan on 3C286.
12:00 : Stopped command file and observing session is over.