GTAC Observation Log

1. Date : 12/05/2017
2. Observation Sr. No. : 9381
3. Observer : Yashwant Gupta, BHAL CHANDRA JOSHI, Nikhil Vijay Naik, Kishalay De, Yogesh Maan, Manjari Bagchi, Jayanta Roy, Gopakumar Achamveedu
4. Observer's Email : ygupta@ncra.tifr.res.in, bcj@ncra.tifr.res.in, naiknikhil27@gmail.com, ugkishalayde@ug.iisc.in, ymaan@ncra.tifr.res.in, manjari.bagchi@gmail.com, jroy@ncra.tifr.res.in, gopu.tifr@gmail.com
5. Project Name : Towards precision pulsar timing with the upgraded GMRT
6. Project Code : 32_032
7. Operator(s) : Navnath, Sachin
8. Command File : /odisk/gtac/cmd/32_032/12may/obs.cmd
9. LTA File : /gsbifrdata1/12may/32_032_12may2017.lta, /gwbifrdata/12may/32_032_12may2017_500.lta, /gwbifrdata/12may/32_032_12may2017_1460.lta, /gwbifrdata1/12may/32_032_12may17_gwb_1460.lta, /gwbifrdata1/12may/32_032B_12may17_gwb_500.lta
10. LogFlag File : /odisk/online1/logflags/32_032B.FLAGS.2, /odisk/online1/logflags/32_032.FLAGS.2

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1454 MHz ,RF2 : 1454 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1505 MHz, ILO2 : 1505MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 32 MHz,OFF, IF-CH2 : 4+14 dB, 32 MHz,OFF

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 : OFF
20. Stokes : Total_Intensity
21. Beam - 1 : IA
22. Beam - 2 : PA
23. ACQ BW : 33.333333 MHz
24. Final BW : 0 MHz; Step # 0
25. Maximum Channels : 512
26. Channel Numbers : 0:511:1
27. LO5 -1  : 149
28. LO5 -2  : 156

29. Frequency Parameters (TPA) : 1454 1454 1505 1505 51 51
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) :
C14 : : Structural Repairing work

33. Note for Backup :

34. Start and End Time of Obs.(IST): 12 May 2017 18:00:00 - 12 May 2017 23:20:00

35. ONLINE Machine : Shivneri

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

37. Comments (During Observations) :
data Recording on: gwbh6,gwbh7 and gwbh8 : /data4/gpuuuser/12may2017/*
----------------------------------------------------------------------
GWB Suba2 : 325 mhz GAB LO=500 Mhz,
    Suba4 : 1420 Mhz GAB LO=1460 Mhz.
    Total Intensity, 200Mhz BW, 2048k Channels, Beam Int 8,PA-PA 
-----------------------------------------------------------------------
                     
17:30 : Started setup.
17:40 : Started settings both Suba2 and Suba 4.
17:50 : Started power equalization at 150 counts.
18:00 : Started phasing on 3C147.
18:05 : Started Pulsar DAS CONSOLE.
      : GWB not getting commands  of bm1_init and bm1_start.
        for any  of the beam either from command line or from GUI itself.
# GWB GAC configuration is as follows : 
# BEAM-1:130 :: C00 C02 C05 C08 C11 E02 W01 Total=7
# BEAM-1:175 :: C00 C02 C05 C08 C11 E02 W01 Total=7
# BEAM-2:130 :: C03 C04 C06 C09 C10 C12 C13 E03 E04 E05 E06 S02 S04 S06 W02 W03 W04 W05 W06 Total=19
# BEAM-2:175 :: C03 C04 C06 C09 C10 C12 C13 E03 E04 E05 E06 S02 S04 S06 W02 W03 W04 W05 W06 Total=19

19:45 : System released for observation.
      : Started setup for the observation.
19:50 : phasing done 3C147. Started command file.
20:15 : Subarray-4 controller given problem. Stopped command file.
20:30 : Restarted subarray-4. Restarted command file.
21:00 : Skipped pulsar-3 it was set at 20:05
21:13 : Started scan on pulsar J0751+1807.

20:33:27 : Started scan on J0645+5158 for ~ 20.1326 min.
21:05:16 : Started scan on 0744-064 for ~ 0.805306 min.
21:06:34 : Started scan on 0744-064 for ~ 0.53687 min.
21:13:26 : Started scan on J0751+1807 for ~ 19.8642 min.
21:35:44 : Started scan on 0834+555 for ~ 0.805306 min.
21:37:00 : Started scan on 0834+555 for ~ 0.53687 min.
21:39:03 : Started scan on J1012+5307 for ~ 19.8642 min.
22:03:58 : Started scan on 1130-148 for ~ 0.805306 min.
22:05:12 : Started scan on 1130-148 for ~ 0.53687 min.
22:08:09 : Started scan on J1022+1001 for ~ 19.8642 min.
22:30:27 : Started scan on 1130-148 for ~ 0.805306 min.
22:31:42 : Started scan on 1130-148 for ~ 0.268435 min.
22:33:38 : Started scan on J1024-0719 for ~ 19.8642 min.
22:56:23 : Started scan on 1311-222 for ~ 0.805306 min.
22:57:42 : Started scan on 1311-222 for ~ 0.53687 min.
23:00:07 : Started scan on J1455-3330 for ~ 20 min.
23:20:00 : Stopped scan and observing session over.