GTAC Observation Log

1. Date : 12/11/2017
2. Observation Sr. No. : 9855
3. Observer : Lokesh Kumar Dewangan, Devendra Kumar Ojha, Igor Zinchenko, Tapas Baug
4. Observer's Email : lokeshd@prl.res.in, ojha@tifr.res.in, zin@appl.sci-nnov.ru, tapas.polo@gmail.com
5. Project Name : GMRT HI 21 cm observations toward the mid-infrared bubble N36
6. Project Code : 33_040
7. Operator(s) : Nilesh, Sachin, Surender
8. Command File : /odisk/gtac/cmd/33_040/obs.cmd
9. LTA File : /gsbifrdata1/12nov/33_040_12nov2017.lta
10. LogFlag File : /odisk/online1/logflags/33_040.FLAGS.1

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1410 MHz ,RF2 : 1410 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1350 MHz, ILO2 : 1350MHz , IVLO1 : 60 MHz, IVLO2 : 60 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 : 16.666666 MHz
24. Final BW : 4 MHz; Step # 2
25. Maximum Channels : 512
26. Channel Numbers : 0:511:1
27. LO5 -1  : 140
28. LO5 -2  : 165

29. Frequency Parameters (TPA) : 1410 1410 1350 1350 60 60
30. Integration Time : 2.0132 Sec
31. No of Antennas Working(Fringing) at the beginning :28

32. Name of Non-Working Antennas (with reason for each) :
C14 : : Mechanical work.
W04 : : ABC time out.


33. Note for Backup :

34. Start and End Time of Obs.(IST): 12 Nov 2017 10:50:00 - 12 Nov 2017 21:00:00

35. ONLINE Machine : Lenyadri

36. No of Antennas Working(Fringing) at the end :30

37. Comments (During Observations) :
10:45 : Started settings.
10:54 : Started scan on 3C286 for ~ 16.039 min.

11:15 : Antenna W04 released for observation.
11:20 : Started command file.
                 /odisk/gtac/cmd/33_040/obs.cmd  

12:55 : C04 taken for maintenance.
13:15 : C04 released for observations.

15:43:07 : Started scan on 3C286 for ~ 11.9789 min.
15:59:11 : Started scan on 3C468.1 for ~ 11.9789 min.
16:18:51 : restarted command file.
18:31:59 : C14 released for observation.
20:15:00 : N36 source below horizon and stopped command file.
20:16:01 : Started scan on 1832+075 for ~ 4.99961 min.
20:25:17 : Started scan on 3C468.1 for ~ 12.0125 min.
20:40:19 : Started scan on 3C48 for ~ 19.1931 min.
21:00:00 : Stopped scan and observing session over.