GTAC Observation Log 

1. Date : 10/7/2014
2. Observation Sr. No. : 7219
3. Observer : Sandeep K. Sirothia,Gopal krishna,Mukul Pradeep Mhaskey,Nimisha Kantharia,C.H. IshwaraChandra
4. Observer's Email : sirothia@ncra.tifr.res.in,krishna@ncra.tifr.res.in,mhamu3@gmail.com,ngk@ncra.tifr.res.in,ishwar@ncra.tifr.res.in
5. Project Name : Accurate determination of the sharply inverted spectra of (TGSS) extragalactic radio sources at metrewavelengths
6. Project Code : 26_063
7. Operator(s) : Navanath,Pramod,Rupsingh,Shilpa,Surender
8. Command File : /odisk/gtac/cmd/26_063/20140710a.cmd,/odisk/gtac/cmd/26_063/20140710b.cmd,/odisk/gtac/cmd/26_063/20140711c.cmd,/odisk/gtac/cmd/26_063/20140711d.cmd
9. LTA File : /gsbifrdata/10jul/26_063_10jul2014.lta,
10. LogFlag File : /odisk/online1/logflags/26_063.FLAGS,/odisk/online1/logflags/26_063.FLAGS.1,

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 156 MHz ,RF2 : 156 MHz, SA1 : 14 dB, SA2 : 14 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 218 MHz, ILO2 : 218 MHz , IVLO1 : 62 MHz, IVLO2 : 62 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 16 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 : 16.67 MHz
23. Final BW : 16.666666 MHz; Step # 0
24. Maximum Channels : 256 
25. Channel Numbers : 0:255:1 
26. LO5 -1  : 138.00 
27. LO5 -2  : 167.00 

28. Frequency Parameters (TPA) : 156 156 218 218 62 62.
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) :
E03 : Strong RFI.

32. Note for Backup :

33. Start and End Time of Obs.(IST): 17:45 - 10:00

34. ONLINE Machine : Shivneri

35. No of Antennas Working(Fringing) at the end :29

36. Comments (During Observations) :
17:45 : Started set up.
18:00 to19:00 : Wind is high.
19:05 : Started scan on 3C286.
Note : RFI is observed thought-out the observation.
19:20 : Stopped scan and started command file.
       '/odisk/gtac/cmd/26_063/20140710a.cmd'
21:00 : Stopped command file and started another command file.
      '/odisk/gtac/cmd/26_063/20140710b.cmd'
23:44 : Stopped command file and started another command file.
       '/odisk/gtac/cmd/26_063/20140711a.cmd'
01:40 : Stopped command file and started another command file.
        '/odisk/gtac/cmd/26_063/20140711b.cmd'
02:58 : Stopped command file.
03:09 : Started scan on 3C48.

03:24 : Stopped scan and started another command file.
        '/odisk/gtac/cmd/26_063/20140711c.cmd'
07:39 : Stopped command file.

07:48 : Started scan on 3C48.
08:03 : Stopped scan.

08:10 : '/odisk/gtac/cmd/26_063/20140711d.cmd' started command file.
09:31 : Stopped command file.

09:38 : Started scan on 3C48.
10:00 : Stopped scan and observing session over.