GTAC Observation Log 

1. Date : 23/5/2013
2. Observation Sr. No. : 6512
3. Observer : Nissim Kanekar
4. Observer's Email : nkanekar@ncra.tifr.res.in
5. Project Name : Low-frequency observations of a gas cloud meeting the Galactic Centre black hole
6. Project Code : 24_053
7. Operator(s) : Rupsingh,
	Surender
8. Command File : /odisk/gtac/cmd/nissim/sgra.cmd
9. LTA File : /gsbifrdata/23may/24_053_23may2013.lta,
	/gsbifrdata1/23may/24_053_23may2013_2s.lta
10. LogFlag File : /odisk/online1/logflags/24_053.FLAGS.8

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 : 24+4 dB, 32 MHz,OFF, IF-CH2 : 24+4 dB, 32 MHz,OFF

GSB SETTINGS :

14. GSB Mode : RealTime 
15. GSB LTA : 8 
16. GAIN EQ : OFF 
17. Stokes : Total_Intensity
18. Beam - 1 : OFF
19. Beam - 2 : OFF
20. ACQ BW : 32 MHz
21. Maximum Channels : 512 
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 : 2.013 Sec.
26. No of Antennas Working(Fringing) :29

27. Name of Non-Working Antennas (with reason for each) :
E03 : BLDC work.

28. Note for Backup :--

29. Start and End Time of Obs.(IST): 22:20 - 06:00

30. ONLINE Machine : Shivneri

31. Comments (During Observations) :
22:20 : Started set up.
22:51 : Done poewr eq. on SGRA
22:59 : Started scan on 3C286.
23:14 : Stopped scan.
23:21 : Started command file.
05:36 : Stopped command file.
05:44 : Started scan on 3C48.
06:00 : Stopped scan & observation session over.