GTAC Observation Log

1. Date : 26/10/2015
2. Observation Sr. No. : 8120
3. Observer :  Manojendu Choudhury,C. H. Ishwara Chandra
4. Observer's Email : manojendu@cbs.ac.in,ishwar@gmrt.ncra.tifr.res.in
5. Project Name : Coordinated simultaneous observation of X-ray Binary Cygnus X-3 in the radio, infra-red and X-rays
6. Project Code : 29_039
7. Operator(s) : Navnath, Nilesh, Pramod, Rupsing, Surender
8. Command File : /odisk/gtac/cmd/29_039/obs24oct.cmd,, /odisk/gtac/cmd/29_039/suba2.cmd
9. LTA File : /gsbifrdata/25oct/29_039_25oct2015_dual.lta.1, /gsbifrdata/25oct/29_039_25oct2015_dual.lta, /gsbifrdata/25oct/29_039_25oct2015_1390.lta.1, /gsbifrdata/25oct/29_039_25oct2015_1390.lta
10. LogFlag File : /odisk/online1/logflags/29_039.FLAGS.1

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 :27

32. Name of Non-Working Antennas (with reason for each) :
C09 : 175 pol low fringe.
E02 : 130 pol no fringe.
W04 : Taken for BLDC.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 25 Oct 2015 15:00:00 - 25 Oct 2015 23:00:00

35. ONLINE Machine : Lenyadri

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

37. Comments (During Observations) :
14:30 : Started set up.
 Split the antennas as,

# sub 2 # C01 C03 C05 C08 C11 C13 W02 W04 W06 E02 E04 E06 S01 S03 S06 
ante 15 6 1 19 24 9 11 13 15 25 17 21 23 26 28 30 
cp 0;defs 2;subar 2

# sub 4 # C00 C02 C04 C06 C09 C10 C12 C14 W01 W03 W05 E03 E05 S02 S04 
ante 15 7 5 3 20 4 12 2 10 8 14 16 18 22 27 29 
cp 0;defs 4;subar 4

15:00 : Stared scan on 3C286 for 15 min.
15:15 : Started command file.
18:34 : C12 servo problem.
19:43 : C12 released brakes and hence taken for observation.
19:00 : 'Unixhuub' get opened.Hence halt the GSB. 
19:00 to 19:27 : Restarted online.
19:04 : Restarted command file.
20:06 : W05 got reset.
20:47 : W05 antenna initialize and used for observation. 
00:45 : Observation session closed.
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