GTAC Observation Log 

1. Date : 17/4/2011
2. Observation Sr. No. : 5283
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
6. Project Code : 20_083
7. Operator(s) : Deepak,
	Nilesh,
	Rupsingh,
	Santaji,
	
8. Command File : /odisk/gtac/cmd/sirothia/loop1.cmd,
	/odisk/gtac/cmd/sirothia/loop2to5.cmd
9. LTA File : /gsbifrdata1/17apr/20_083_17apr2011.lta
10. LogFlag File : /odisk/online1/logflags/20_083.FLAGS.4

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 : 4+12 dB, 16 MHz,ON, IF-CH2 : 4+12 dB, 16 MHz,ON

GSB SETTINGS :

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

21. Frequency Parameters (TPA) : 156 156 218 218 62 62.
22. Integration Time : 8 LTA ~ 16.106 Sec.
23. No of Antennas Working(Fringing) :27

24. Name of Non-Working Antennas (with reason for each) :
C05 : Servo off.
C04 : Servo work.
W02 : fringe fluctuations.
25. Note for Backup :--

26. Start and End Time of Obs.(IST): 17:00 - 06:00

27. ONLINE Machine : Shivneri

28. Comments (During Observations) :
2s file : /gsbifrdata1/17apr/20_083_17apr2011_2s.lta,
17:00 : setup started.
17:03 : scan started on 3c48.
17:21 : scan started on J0218+4232.
17:41 : command file started 
        '/odisk/gtac/cmd/sirothia/loop1.cmd'
20:02 : Stopped command file.
20:05 : Started command file
        '/odisk/gtac/cmd/sirothia/loop2to5.cmd'
20:10 : C04 started working.

01:21 : C04 Stopped working.
05:28 : Stopped command file.
05:30 : Started scan on 3c286 till it set.
05:52 : Started scan on 3c468.1 for 15 min.
07:03 : Stopped scan and closed observation session.

NOTE : Delayjumps observed w.r.t. baseline = E06.