GTAC Observation Log 

1. Date : 28/7/2011
2. Observation Sr. No. : 5475
3. Observer : Sandeep Sirothia 
4. Observer's Email : sirothia@ncra.tifr.res.in
5. Project Name : The GMRT extra-galactic sky survey at 150 MHz - TGSS
6. Project Code : 20_083
7. Operator(s) : Deepak,
	Nilesh,
	Sachin,
	
8. Command File : /odisk/gtac/cmd/sirothia/20_083_20110728a.cmd
9. LTA File : /gsbifrdata/28jul/20_083_28jul2011.lta,
	
10. LogFlag File : /odisk/online1/logflags/20_083.FLAGS.26

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 156 MHz ,RF2 : 156 MHz, SA1 : 14 dB, SA2 : 14 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 218 MHz, ILO2 : 218 MHz , IVLO1 : 62 MHz, IVLO2 : 62 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 10+12 dB, 16 MHz,ON, IF-CH2 : 10+12 dB, 16 MHz,ON

GSB SETTINGS :

14. GSB Mode : RealTime 
15. GSB LTA : 8 
16. GAIN EQ : ON 
17. Stokes : Full_Polar
18. Beam - 1 : OFF
19. Beam - 2 : OFF
20. ACQ BW : 16 MHz
21. Maximum Channels : 256 
22. IFBW (MHz) : LO5 (KHz) : 16:138000-167000
23. Final Bandwidth (MHz): OFF MHz; Step # 0

24. Frequency Parameters (TPA) : 156 156 218 218 62 62.
25. Integration Time : 16.106 Sec.
26. No of Antennas Working(Fringing) :29

27. Name of Non-Working Antennas (with reason for each) :
W03 : Feed Jam.
28. Note for Backup :--

29. Start and End Time of Obs.(IST): 20:50 - 06:00

30. ONLINE Machine : Shivneri

31. Comments (During Observations) :
2s data file :
/gsbifrdata/28jul/20_083_28jul2011_2s.lta
--------------------------------------------------
20:50 : Started settings for observation.
21:04 : Started scan on 3c286 for ~15min.
21:25 : Started command file.
'/odisk/gtac/cmd/sirothia/20_083_20110728a.cmd'.
00:22 : E05 got ABC timed out.
00:48 : S02 got ABC reset.
01:00 : S02 kept ready with settings.
02:50 : Stopped command file and changed phase cal and restarted command file.
05:20 : Stopped command file.
05:30 : Started scan on J calibrator for next 15 mins.
05:45 : Stopped scan.
05:46 : Started scan on 3C48 for 15 mins.
06:01 : Stopped scan on 3C48 and closed observation session.