GTAC Observation Log

1. Date : 28/02/2015
2. Observation Sr. No. : 7639
3. Observer : Veena V.S., Sarita Vig, Anandmayee Tej, Nimisha Kantharia, SKGhosh
4. Observer's Email : veenagangothri@gmail.com, sarita@iist.ac.in, anandmayee.tej@gmail.com, ngk@ncra.tifr.res.in, cd@ncra.tifr.res.in
5. Project Name : Mapping of radio recombination lines in the cometary HII region G351.69-1.17
6. Project Code : 27_021
7. Operator(s) : Manisha, Nilesh, Sachin, Surender
8. Command File : /odisk/gtac/cmd/27_021/feb28.cmd
9. LTA File : /gsbifrdata/28feb/27_021_28feb2015.lta
10. LogFlag File : /odisk/online1/logflags/27_021.FLAGS

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1276.4888 MHz ,RF2 : 1276.4888 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1210 MHz, ILO2 : 1210MHz , IVLO1 : 66.4888 MHz, IVLO2 : 66.4888 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 6 MHz,ON, IF-CH2 : 4+14 dB, 6 MHz,ON

GSB SETTINGS :

14. GSB Host : gsbm1
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 : 16.666666 MHz
24. Final BW : 2 MHz; Step # 2
25. Maximum Channels : 512
26. Channel Numbers : 0:511:1
27. LO5 -1  : 133.5112
28. LO5 -2  : 171.4888

29. Frequency Parameters (TPA) : 1276.4888 1276.4888 1210 1210 66.4888 66.4888
30. Integration Time : 16.1061 Sec
31. No of Antennas Working(Fringing) at the beginning :29

32. Name of Non-Working Antennas (with reason for each) :
W05 No feed due to maintenance.
33. Note for Backup :

34. Start and End Time of Obs.(IST): 28 Feb 2015 04:00:00 - 28 Feb 2015 11:20:00

35. ONLINE Machine : Shivneri

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

37. Comments (During Observations) :
03:52 : Started scan on 3C286 form 15 mins.
04:15 : Started command file.
04:33 : W06 got ABC reset.
04:55 : W06 started working.

09:55 : E04 antennas released for Painting.
11:00 : command file stopped
11:10 : started scan on 3C48 ~20mins
11:30 : stopped das & observation session over.