GTAC Observation Log 

1. Date : 18/5/2011
2. Observation Sr. No. : 5335
3. Observer : Sandeep Sirothia,Ishwar Chandra
4. Observer's Email : sirothia@ncra.tifr.res.in,ishwar@ncra.tifr.res.in
5. Project Name : The GMRT extra-galactic sky survey at 150 MHz - TGSS
6. Project Code : 19_043
7. Operator(s) : Nilesh,
	Sachin,
	
8. Command File : /odisk/gtac/cmd/sirothia/20_083_20110518a.cmd,
	/odisk/gtac/cmd/sirothia/20_083_20110518b.cmd,
	
9. LTA File : /gsbifrdata/18may/19_043_18may2011.lta,
	
10. LogFlag File : /odisk/online1/logflags/19_043.FLAGS.93

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 : 12+10 dB, 16 MHz,ON, IF-CH2 : 12+10 dB, 16 MHz,ON

GSB SETTINGS :

14. Maximum Channels : 256 
15. Final Bandwidth (MHz): OFF MHz; Step # 0
16. IFBW (MHz) : LO5 (KHz) : 16:138000-167000
17. Stokes : Full_Polar
18. Beam - 1 : OFF
19. Beam - 2 : OFF

20. Frequency Parameters (TPA) : 156 156 218 218 62 62.
21. Integration Time : 16.106 Sec.
22. No of Antennas Working(Fringing) :30

23. Name of Non-Working Antennas (with reason for each) :
--
24. Note for Backup :--

25. Start and End Time of Obs.(IST): 20:30 - 07:00

26. ONLINE Machine : Shivneri

27. Comments (During Observations) :
2S Data File : 
/gsbifrdata1/18may/19_043_18may2011_2s.lta
---------------------------------------------------------
20:35 : Started setup.
20:56 : Started scan on 3C286 ~15min.
21:15 : Started command file. 
       '/odisk/gtac/cmd/sirothia/20_083_20110518a.cmd'.
21:22 : Intermittent and Strong RFI lines for almost all antennas
01:29 : Stopped command file a.cmd after 5 loops.
01:34 : Started new command file b.cmd.
05:45 : Stopped command file b.cmd after 5 loops.
05:55 : Started scan on J calibrator.
06:30 : Stopped scan on J calibrator.
06:34 : Started scan on 3C48.
07:00 : Stopped scan on 3C48 and closed observation session.