GTAC Observation Log 

1. Date : 19/7/2014
2. Observation Sr. No. : 7235
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) : Deepak,
8. Command File : /odisk/gtac/cmd/26_063_50cm/20140719c.cmd
9. LTA File : /gsbifrdata/19jul/26_063_19jul2014.lta,
10. LogFlag File : /odisk/online1/logflags/26_063.FLAGS.4,

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540 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, 32 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) : 591 591 540 540 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) :
S03 - very low fringe.
32. Note for Backup :

33. Start and End Time of Obs.(IST): 16:00 - 20:00

34. ONLINE Machine : Shivneri

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

36. Comments (During Observations) :
16:12 : Started scan on 3C286 for 12mins.
16:31 : Started command file.
19:22 : Started scan on 3C286 for 12mins.
19:43 : Restarted command file.
20:00 : Observation stopped.