GTAC Observation Log 

1. Date : 18/10/2012
2. Observation Sr. No. : 6167
3. Observer : Dharam Vir Lal
4. Observer's Email : dharam@ncra.tifr.res.in
5. Project Name : Strong radio AGN in the center of galaxy groups
6. Project Code : 23_055
7. Operator(s) : Deepak,
	Navanath,
	Nilesh,
	
8. Command File : /odisk/gtac/cmd/dharam/23_055_18oct.cmd,
	/odisk/gtac/cmd/dharam/23_055_19oct.cmd
9. LTA File : /gsbifrdata/18oct/23_055_18oct2012.lta
10. LogFlag File : /odisk/online1/logflags/23_055.FLAGS

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540 MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 32 MHz,ON, IF-CH2 : 4+12 dB, 32 MHz,ON

GSB SETTINGS :

14. GSB Mode : RealTime 
15. GSB LTA : 8 
16. GAIN EQ : ON 
17. Stokes : Total_Intensity
18. Beam - 1 : OFF
19. Beam - 2 : OFF
20. ACQ BW : 32 MHz
21. Maximum Channels : 256 
22. IFBW (MHz) : LO5 (KHz) : 32:149000-156000
23. Final Bandwidth (MHz): OFF MHz; Step # 0

24. Frequency Parameters (TPA) : 591 591 540 540 51 51.
25. Integration Time : 16.106 Sec.
26. No of Antennas Working(Fringing) :25

27. Name of Non-Working Antennas (with reason for each) :
C00 : BLDC work.
C09 : ABC time out.
W01 : Servo problem.
W05 : Freq. Tel.Reset
S01 : MCM 2,3,10 time out.
28. Note for Backup :--

29. Start and End Time of Obs.(IST): 19:30 - 05:00

30. ONLINE Machine : Lenyadri

31. Comments (During Observations) :
19:00 : Started set-up.
19:32 : Started scan on 3C48.

20:12 : Started cmd file.
       /odisk/gtac/cmd/dharam/23_055_18oct.cmd,

20:40 : Scintillations in the data are observed.
20:48 : Stopped command file.
20:51 : started scan on 3c48 for 6min.
21:00 : Restarted command file.
21:00 : C03 stopped fringing.
21:55 : scintillation continued, stopped command file.
22:00 : started scan on 3c48.
22:00 : W05 started working.

00:20 : Restarted command file.
01:17 : Due to scintillation command file stopped.

01:49 : Started scan on 3C48 for 15mins.
02:05 : Started command file 23_055_19oct.cmd
04:45 : Command file stopped.
04:48 : Started scan on 3C48 for 12mins.
05:00 : Observation stopped.