GTAC Observation Log 

1. Date : 18/07/2010
2. Observation Sr. No. : 4968
3. Observer : Avinash Deshpande,Richard,Wasim
4. Observer's Email : desh@rri.res.in,wasim@rri.res.in,richard.dodson@uwa.edu.au
5. Project Name : Polarised GMRT observations of the Vela PWN
6. Project Code : 18_072
7. Operator(s) : Amruta,
	Deepak,
	Nilesh,
	Santaji,
	Shilpa
8. Command File : /odisk/gtac/cmd/18_072/18_072_18jul_1.cmd,
	/odisk/gtac/cmd/18_072/18_072_17jul_2.cmd
9. LTA File : /rawdata/18jul/18_072_18jul2010.lta
10. GSB File : /gsbifrdata/18jul/18_072_18jul2010_gsb.lta,
	/gsbifrdata/18jul/18_072_18jul2010_gsb.lta.1,
	/gsbifrdata/18jul/18_072_sixx_18jul2010_gsb.lta,
	/gsbifrdata/18jul/18_072_sixx_18jul2010_gsb.lta.1,
	/gsbifrdata/18jul/18_072_sixxI_18jul2010_gsb.lta,
	/gsbifrdata/18jul/18_072_sixxII_18jul2010_gsb.lta
11. LogFlag File : /odisk/online1/logflags/18_072.FLAGS.3

ANTENNA SETTINGS :

12. RF Freq(MHz) & Solar Attn(dB)- RF1 : 602 MHz ,RF2 : 602 MHz, SA1 : 0 dB, SA2 : 0 dB
13. Ist LO (MHz) & IVth LO (MHz) : ILO1 : 540 MHz, ILO2 : 540 MHz, IVLO1 : 62 MHz, IVLO2 : 62 MHz
14. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 20+4 dB, 16 MHz,OFF, IF-CH2 : 20+4 dB, 16 MHz,OFF
15. BB BW(KHz) & BB ALC : 16000 KHz, OFF

CORRELATOR SETTINGS :

16. Channels : 0:127:1
17. Frequency Parameters (TPA) : 602 602 540 540 62 62 

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

20. Name of Non-Working Antennas (with reason for each) :
E03 - Parked.
C03 - No fringe[GHB+GSB]
21. Note for Backup :--

22. Start and End Time of Obs.(IST): 09:45 - 16:00

23. ONLINE Machine : Shivneri

24. Correlator Mode : IndianPolar

25. Comments (During Observations) :
2s Data Files :
/gsbifrdata/18jul/18_072_18jul2010_gsb_2s.lta,
/gsbifrdata/18jul/18_072_sixx_18jul2010_gsb_2s.lta
/gsbifrdata/18jul/18_072_sixx_18jul2010_gsb_2s.lta.1
/gsbifrdata/18jul/18_072_sixxI_18jul2010_gsb_2s.lta,
/gsbifrdata/18jul/18_072_sixxII_18jul2010_gsb_2s.lta
-------------------------------------------------------------------------
Correlator configured in pulsar mode.
-------------------------------------------------------------------------
GSB settings : Full Stokes
               ACQ BW : 16MHz.
               Final BW : OFF.
               256 channels.
------------------------------------------------------------------------- 
09:45 : Started settings.
10:17 : Power equilised on 3C48 IF @ 800 counts and BB @ 1000 counts.
11:31 : Phasing done on 3C48.

11:32:41 : Started scan on 3C48.
          
Halted GSB and started raw dump recording. 

12:05:07 : Started scan on 0823-500.
12:10:09 : Started scan on VELA10.
12:23:12 : Started scan on 0823-500.
12:28:16 : Started scan on VELA10.
12:39:43 : Started scan on 0823-500.
12:44:01 : Started scan on VELA10.
12:55:11 : Started scan on 0823-500.
12:59:48 : Started scan on VELA10.
13:12:20 : Started scan on VELA10.

Stopped recording for raw dump and restarted GSB.

13:12:20 : Started scan on VELA10.
13:39:40 : Phasing done on 0823-500.
           scan no.15 bad.  
13:43:25 : Started scan on 0823-500.
13:48:59 : Started scan on VELA10.
14:21:54 : Started scan on 0823-500.
14:29:18 : Started scan on VELA10.


16:00 : Stopped command file and started scan on 3c48.
16:05 : Stopped scan and observation session closed.