GTAC Observation Log

1. Date : 05/02/2017
2. Observation Sr. No. : 9181
3. Observer : Poonam Chandra, Wade, Sushma Kurapati, Veronique Petit, Maurice Andrew Leutenegger, David Cohen, Jason H Grunhut
4. Observer's Email : poonam@ncra.tifr.res.in, marmottecam@yahoo.ca, sushma@ncra.tifr.res.in, Vpetit@udel.edu, maurice.a.leutenegger@nasa.gov, dcohen1@swarthmore.edu, jason.grunhut@gmail.com
5. Project Name : Uncovering the intriguing nature of the magnetic O\\+O binary system Plaskett`s star
6. Project Code : 31_105
7. Operator(s) : Pramod, Sachin, Surender
8. Command File : /odisk/gtac/cmd/poonam/31_105/obs.cmd
9. LTA File : /gsbifrdata1/04feb/31_105_04feb2017.lta, /gwbifrdata/04feb/31_105_04feb2017_gwb.lta
10. LogFlag File : /odisk/online1/logflags/31_105.FLAGS.3

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1399 MHz ,RF2 : 1399 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1450 MHz, ILO2 : 1450MHz , 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 : 0 MHz; Step # 0
25. Maximum Channels : 256
26. Channel Numbers : 0:255:1
27. LO5 -1  : 149
28. LO5 -2  : 156

29. Frequency Parameters (TPA) : 1399 1399 1450 1450 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) :
C01 : : No Fringe.
C06 : Servo problem.
33. Note for Backup :

34. Start and End Time of Obs.(IST): 04 Feb 2017 17:00:00 - 05 Feb 2017 00:05:00

35. ONLINE Machine : Lenyadri

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

37. Comments (During Observations) :
GWB Settings : 400MHz Bandwidth, 2k Channels, 1450MHz GABLO, Total Intensity.
17:00 : Started set-up.
17:26 : Started scan on 3C48.
17:47 : Started command file.
"/odisk/gtac/cmd/poonam/31_105/obs.cmd"
23:40 : Stopped command file after source is done.
23:41 : Started scan on phase cal.
23:46 : Stopped scan on phase cal.
23:53 : Started scan on 3C286.
00:04 : Stopped scan on 3C286 and closed observation session.