GTAC Observation Log 

1. Date : 06/03/2011
2. Observation Sr. No. : 5277
3. Observer : Nissim Kanekar, Jayaram Chengalur
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,
	Navanath,
	Nilesh,
	Rupsingh,
	Santaji,
	
8. Command File : /odisk/gtac/cmd/nissim/1307+1355.cmd,
	/odisk/gtac/cmd/nissim/1542+1756.cmd
9. LTA File : 
10. GSB File : /gsbifrdata/6mar/19_066_06mar2011_gsb.lta,
	/gsbifrdata/7mar/19_066_07mar2011_gsb.lta
11. LogFlag File : /odisk/online1/logflags/19_066.FLAGS.26,
	/odisk/online1/logflags/19_066.FLAGS.27

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, 32 MHz,ON, IF-CH2 : 10+12 dB, 32 MHz,ON
15. BB BW(KHz) & BB ALC : 16000 KHz, ON

CORRELATOR SETTINGS :

GHB Settings :
16. GHB Channels : 0:127:1
17. Correlator Mode : IndianPolar
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 : 141500 - 163500
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) :29

27. Name of Non-Working Antennas (with reason for each) :
E04 : Servo problem.

28. Note for Backup :--

29. Start and End Time of Obs.(IST): 20:00 - 10:40

30. ONLINE Machine : Lenyadri

31. Comments (During Observations) :
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RF band :        610

LO (1)  :        575 MHz
LO (5)  :        141.5 MHz, 163.5 MHz
IF BW   :         16 MHz
GSB BW  :          4.167 MHz

TPA 645 645 575 575 70 70
lta 8m

The line is in the 3rd quadrant. Use step 2

The GSB band covers 641.8333-646.0000 MHz



20:57 : Started scan on 3c147 ~10min.
21:12 : Retarted scan on 3c147.
21:50 : Started command file.
'/odisk/gtac/cmd/nissim/1307+1355.cmd'.
07:44 : scan stopped.
07:45 : Started scan on phase cal for 7 min.
07:53 : scan stopped.
07:55 : Started scan on 3C286 for 10 min.
08:07 : Scan stopped.
08:07 : S02 parked for painting work.
08:10 ; S02 Parked for painting
 settings changed 


RF band	: 	 610 

LO (1)	:        505 MHz
LO (5)  :        139.0 MHz, 166.0 MHz.
IF BW   :         16 MHz
GSB BW  : 	   4.167 MHz

TPA 575 575 505 505 70 70
lta 8m

The line is in the 3rd quadrant (8.3-12.5 MHz). Use step 2.

The GSB band covers 574.333 - 578.500 MHz.

08:14 : Started scan on 3C286 for 10min.
08:26 : Started cmd file.

      /odisk/gtac/cmd/nissim/1542_1756.cmd
10:10 : C11 Parked for painting

10:40 : stopped das & osbervation session.

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