GTAC Observation Log 

1. Date : 14/5/2013
2. Observation Sr. No. : 6499
3. Observer : Nissim Kanekar,Jayaram Narayanan Chengalur
4. Observer's Email : nkanekar@ncra.tifr.res.in,chengalu@ncra.tifr.res.in
5. Project Name : The spin temperature of high-redshift damped Lyman-alpha systems
6. Project Code : 24_055
7. Operator(s) : Navanath,
	Pramod,
	Rupsingh,
	Sachin,
	
8. Command File : /odisk/gtac/cmd/nissim/1522+2119.cmd
9. LTA File : /gsbifrdata1/14may/24_055_14may2013_2s.lta,
	/gsbifrdata/14may/24_055_14may2013.lta
10. LogFlag File : /odisk/online1/logflags/24_055.FLAGS.4

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 345 MHz ,RF2 : 345 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 278 MHz, ILO2 : 278 MHz , IVLO1 : 67 MHz, IVLO2 : 67 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 6 MHz,ON, IF-CH2 : 4+12 dB, 6 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 : 16 MHz
21. Maximum Channels : 512 
22. IFBW (MHz) : LO5 (KHz) : 6:133000-172000
23. Final Bandwidth (MHz): OFF MHz; Step # 0

24. Frequency Parameters (TPA) : 345 345 278 278 67 67.
25. Integration Time : 16.106 Sec.
26. No of Antennas Working(Fringing) :26

27. Name of Non-Working Antennas (with reason for each) :
E03 : BLDC
E04 : Servo problem
W06 : Maintenance
C08 : Strong RFI

28. Note for Backup :--

29. Start and End Time of Obs.(IST): 20:00 - 06:15

30. ONLINE Machine : Shivneri

31. Comments (During Observations) :
20:00 :Started set-up.
20:20 : Started scan on 3C286 for 15min.
20:38 : Started cmd file.

      /odisk/gtac/cmd/nissim/1522+2119.cmd
01:30 : Stopped command file and changed track from inner to outer.
01:45 : Restarted command file.
05:39 : Source set, stopped command file.
05:41 : Started scan on phase cal.
05:48 : Stopped scan on phase cal.
05:55 : Started scan on 3C48.
06:15 : Stopped scan on 3C48 and closed observation session.