GTAC Observation Log 

1. Date : 24/3/2013
2. Observation Sr. No. : 6437
3. Observer : Ramana Athreya
4. Observer's Email : rathreya@iiserpune.ac.in,tventuri@ira.inaf.it
5. Project Name : Probing the origin of cluster radio halos with a study of their integrated spectra
6. Project Code : 23_023
7. Operator(s) : Deepak,
	Pramod,
	Surender
8. Command File : /odisk/gtac/cmd/rathreya/23_023_24mar13_obs.cmd
9. LTA File : /gsbifrdata/24mar/23_023_24mar2013.lta,
	/gsbifrdata/24mar/23_023_24mar2013_2s.lta
10. LogFlag File : /odisk/online1/logflags/23_023.FLAGS.5

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) :
C04 : Counter weight replacement.
W02 : BLDC work.
S04 : Electrical problem cable fault.
C10 : Low fringe.
E06 : 175 pole low fringe.
28. Note for Backup :--

29. Start and End Time of Obs.(IST): 20:15 - 06:15

30. ONLINE Machine : Lenyadri

31. Comments (During Observations) :
20:15 : Started set up for 610MHz.
20:29 : Started scan on 3C147.
20:30 : Scintillation started.
20:49 : Stopped scan on 3C147.
20:52 : Started command file.

00:27 : Command file stopped
00:29 : Started scan on 3C286 for 10mins.
00:41 : Restarted command file.

03:00 : scintillation stopped.
05:58 : command file stopped.
06:01 : Started scan on 3C286 for 15mins.
06:15 : Observation stopped.