GTAC Observation Log 

1. Date : 05/01/2010
2. Observation Sr. No. : 5129
3. Observer : Nissim Kanekar, JNC
4. Observer's Email : nkanekar@ncra.tifr.res.in,chengalu@ncra.tifr.res.in
5. Project Name : A GMRT survey for HI-21cm absorption in strong MgII absorbers in the redshift desert
6. Project Code : 19_066
7. Operator(s) : Deepak,
	Manisha,
	Nilesh,
	Rupsingh,
	Santaji,
	
8. Command File : /odisk/gtac/cmd/nissim/0800+5010.cmd,
	/odisk/gtac/cmd/nissim/0807+1352.cmd,
	/odisk/gtac/cmd/nissim/1112+3446.cmd,
	/odisk/gtac/cmd/nissim/1659+1714.cmd
9. LTA File : /rawdata/5dec/19_066_05dec2010.lta,
	/rawdata1/5dec/19_066_05dec2010.ltb,
	/rawdata/5dec/19_066_05dec2010.lta.1,
	/rawdata1/5dec/19_066_05dec2010.ltb.1,
	/rawdata/6dec/19_066_06dec2010.lta,
	/rawdata1/6dec/19_066_06dec2010.ltb,
	
10. GSB File : /gsbifrdata/5dec/19_066_05dec2010_gsb.lta,
	/gsbifrdata/5dec/19_066_05dec2010_gsb.lta.1,
	/gsbifrdata/6dec/19_066_06dec2010_gsb.lta
11. LogFlag File : /odisk/online1/logflags/19_066.FLAGS.10,
	/odisk/online1/logflags/19_066.FLAGS.11

ANTENNA SETTINGS :

12. RF Freq(MHz) & Solar Attn(dB)- RF1 : 645 MHz ,RF2 : 645 MHz, SA1 : 0 dB, SA2 : 0 dB
13. Ist LO (MHz) & IVth LO (MHz) : ILO1 : 575 MHz, ILO2 : 575 MHz, IVLO1 : 70 MHz, IVLO2 : 70 MHz
14. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 10+12 dB, 16 MHz,ON, IF-CH2 : 10+12 dB, 16 MHz,ON
15. BB BW(KHz) & BB ALC : 2000 KHz, ON

CORRELATOR SETTINGS :

GHB Settings :
16. GHB Channels : 0:127:1
17. Correlator Mode : UsbHighRes
18. Frequency Parameters (TPA) : 645 645 575 575 70 70 

GSB Settings :
19. Maximum Channels : 512 
20. Final Bandwidth (MHz): 4 MHz; Step # 2
21. IFBW (MHz) : LO5 (KHz) : Custom :- 16 : 140000 - 165000
22. Stokes : Total_Intensity
23. Beam - 1 : OFF
24. Beam - 2 : OFF

25. Integration Time : 128 LTA ~ 16.908 Sec.
26. No of Antennas Working(Fringing) :28

27. Name of Non-Working Antennas (with reason for each) :
C00 : Servo problem.
S01 : No fringe.
28. Note for Backup :--

29. Start and End Time of Obs.(IST): 22:00 - 16:05

30. ONLINE Machine : Lenyadri

31. Comments (During Observations) :
21:45 : Started setup.
22:14 : Started scan on 3c147 for ~ 10min.
22:28 : Started command file.
        '/odisk/gtac/cmd/nissim/0800+5010.cmd'.  

22:51 : Started command file.
        '/odisk/gtac/cmd/nissim/0807+1352.cmd'.
02:51 : Stopped command file.
03:01 : Started scan on 3C147.
03:09 : Stopped scan.
---------------------------------------------------
03:10 : Setup changed
       RF-580
       LO1-510 
       LO4-70
       LO5-16 :-Final BW-4MHz, step # 2.   
       Custom :- 16 : 139000KHz - 166000KHz.
03:30 : Started scan on 3C147.
03:40 : Stopped scan.
03:44 : Started command file
      '/odisk/gtac/cmd/nissim/1112+3446.cmd'

09:00 : C03 antenna parked for painting.
09:20 : stopped command file.
09:22 : started scan on phase cal ~ 4mins.
09:29 : started scan on 3C286 ~10mins.
09:39 : stopped scan.
------------------------------
setup changed as :
LO(1) = 500 MHz.
LO(5) = 139.5 MHz, 165.5 MHz,
FBW : 4 MHz, step # 2.

TPA 570 500 70.
----

09:56 : started scan on 3C286 ~ 10mins.
10:06 : stopped scan.
10:12 : started command file.
10:18 : stopped scan & command file.
10:30 : started scan on 3C286 ~14 mins.
10:51 : S01 started working.
10:52 : command file 1659+1714.cmd started.

15:44 : Stopped scan and command file.
15:50 : Started scan on 3c48.
16:05 : Stopped scan and observation session closed.
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