GTAC Observation Log

1. Date : 07/11/2015
2. Observation Sr. No. : 8148
3. Observer : Joydeep Bagchi, BIJU.K.G, Pratik Dabhade, Madhuri Gaikwad, C.H. IshwaraChandra, Joe Jacob
4. Observer's Email : joydeep@iucaa.ernet.in, kgbiju42@gmail.com, pratikdabhade13@gmail.com, madhuri.explorer@gmail.com, ishwar@ncra.tifr.res.in, joe@iucaa.ernet.in
5. Project Name : GMRT observations of   the largest radio source hosted by a grand-design spiral 
6. Project Code : 29_061
7. Operator(s) : Deepak, Navnath, Rupsing, Sachin
8. Command File : /odisk/gtac/cmd/29_061/obs.cmd
9. LTA File : /gsbifrdata/06nov/29_061_06nov2015.lta
10. LogFlag File : /odisk/online1/logflags/29_061.FLAGS

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 255 MHz, ILO2 : 255MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 32 MHz,ON, IF-CH2 : 4+14 dB, 32 MHz,ON

GSB SETTINGS :

14. GSB Host : gsbm1_shivneri
15. GSB Mode : Realtime
16. GSB LTA : 8
17. GSB CTRL : ONLINE
18. GSB Fstop : ON
19. GAIN EQ : ON
20. Stokes : Total_Intensity
21. Beam - 1 : OFF
22. Beam - 2 : OFF
23. ACQ BW : 33.333333 MHz
24. Final BW : 33.333333 MHz; Step # 
25. Maximum Channels : 512
26. Channel Numbers : 0:511:1
27. LO5 -1  : 149
28. LO5 -2  : 156

29. Frequency Parameters (TPA) : 306 306 255 255 51 51
30. Integration Time : 16.1061 Sec
31. No of Antennas Working(Fringing) at the beginning :28

32. Name of Non-Working Antennas (with reason for each) :
C04 : : dnpl flag
W03 : : BLDC Work

33. Note for Backup :

34. Start and End Time of Obs.(IST): 06 Nov 2015 18:00:00 - 07 Nov 2015 02:00:00

35. ONLINE Machine : Shivneri

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

37. Comments (During Observations) :
18:00 : Started setup.
18:15 : Started scan on 3c48.
18:29 : Started cmd file.

       /odisk/gtac/cmd/29_061/obs.cmd

22:05 : Started scan on 3C48 for 10min.
22:15 : Stopped scan on 3C48.
22:20 : Restarted command file.
01:56 : Source set.
Note : Scan no.28,29,30 are bad.
02:58 : Started scan on 3C48.
03:08 : Stopped scan on 3C48 and closed observation session.