GTAC Observation Log 

1. Date : 29/10/2013
2. Observation Sr. No. : 6759
3. Observer : Ewan O'Sullivan,Giacintucci Simona,Somak Raychaudhury,Nimisha Kantharia,Jan M. Vrtilek,Laurence Paul David,Konstantinos Kolokythas
4. Observer's Email : eosullivan@cfa.harvard.edu,simona@astro.umd.edu,somak@star.sr.bham.ac.uk,ngk@ncra.tifr.res.in,jvrtilek@cfa.harvard.edu,ldavid@head.cfa.harvard.edu,kkolok@star.sr.bham.ac.uk
5. Project Name : CLoGS: The Complete Local-volume Groups Sample - part 5
6. Project Code : 25_004
7. Operator(s) : Deepak,Navanath,Rupsingh,Sachin,Shilpa,
8. Command File : /odisk/gtac/cmd/ngk/25_004/ngc677-29oct13.cmd,/odisk/gtac/cmd/ngk/25_004/ngc1453-30oct13.cmd
9. LTA File : /gsbifrdata/29oct/25_004_29oct2013.lta,/gsbifrdata/30oct/25_004_30oct2013.lta,
10. LogFlag File : /odisk/online1/logflags/25_004.FLAGS,/odisk/online1/logflags/25_004.FLAGS.1,

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 629 MHz ,RF2 : 253 MHz, SA1 : 0 dB, SA2 : 14 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 680 MHz, ILO2 : 304 MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 32 MHz,ON, IF-CH2 : 4+12 dB, 16 MHz,ON

GSB SETTINGS :

14. GSB Mode : Realtime 
15. GSB LTA : 8 
16. GSB CTRL : ONLINE 
17. GSB Fstop : ON 
18. GAIN EQ : ON 
19. Stokes : TotIntensity
20. Beam - 1 : OFF
21. Beam - 2 : OFF
22. ACQ BW : 33.33 MHz
23. Final BW : 33.333333 MHz; Step # 0
24. Maximum Channels : 256 
25. Channel Numbers : 0:255:1 
26. LO5 -1  : 149.00 
27. LO5 -2  : 156.00 

28. Frequency Parameters (TPA) : 629 253 680 304 51 51.
29. Integration Time : 16.106112 Sec.
30. No of Antennas Working(Fringing) at the begining :29

31. Name of Non-Working Antennas (with reason for each) :
C00 :No fringe. Swap need @ 610-dual (low fringe after swap)
C10:175 : No fringe.(NO- feed @ 175 pol i.e. 240 Mhz.)


32. Note for Backup :

33. Start and End Time of Obs.(IST): 20:00 - 06:50

34. ONLINE Machine : Lenyadri

35. No of Antennas Working(Fringing) at the end :28

36. Comments (During Observations) :
20:00 : Started setup.
20:12 : Started scan on 3C48 for 10min.
20:23 : Stopped scan.
20:25 : Started command file.
00:32 : Stopped command file.

00:40 : Started scan on 3C147.
00:55 : Stopped scan.

        Halted GSB and changed the settings to 235MHz.
        tpa 242 242 304 304 62 62
        C00 : Fringing for 235MHz.
        C10 : No fringe @ 235MHz.
01:10 : Started scan on 3C147.
01:20 : Stopped scan.

01:26 : Started command file /odisk/gtac/cmd/ngk/25_004/ngc1453-30oct13.cmd.
06:10 : Taken phase cal before it sets and continued scan on the source.
06:24 : Source set stopped recording on the source.

06:33 : Started scan on 3C147.
06:33 : C02 is not releasing azimuth brakes.
06:50 : Stopped scan and observing session over.