GTAC Observation Log

1. Date : 07/08/2017
2. Observation Sr. No. : 9646
3. Observer : ARUN KUMAR NAIDU, Periasamy K. Manoharan, BHAL CHANDRA JOSHI, Manjari Bagchi, Gopakumar Achamveedu, Dhruv Pathak, Krishnakumar MA, Mayuresh Surnis, Yogesh Maan, Prakash Arumugasamy
4. Observer's Email : arun@ncra.tifr.res.in, mano@ncra.tifr.res.in, bcj@ncra.tifr.res.in, manjari.bagchi@gmail.com, gopu.tifr@gmail.com, pathakdhruv9786@gmail.com, kkma@ncra.tifr.res.in, mpsurnis@ncra.tifr.res.in, ymaan@ncra.tifr.res.in, prakash@ncra.tifr.res.in
5. Project Name : Extending timing baseline for the ORT-GMRT Indian Pulsar Timing Array (InPTA) experiment
6. Project Code : 32_092
7. Operator(s) : Pramod, Shilpa, Surender
8. Command File : /odisk/gtac/cmd
9. LTA File : /gsbifrdata1/06aug/32_092_06aug2017.lta
10. LogFlag File : /odisk/online1/logflags/PNTG.FLAGS.2444

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1292 MHz ,RF2 : 1292 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1230 MHz, ILO2 : 1230MHz , IVLO1 : 62 MHz, IVLO2 : 62 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 24+4 dB, 16 MHz,OFF, IF-CH2 : 24+4 dB, 16 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 : OFF
22. Beam - 2 : Volt
23. ACQ BW : 16.666666 MHz
24. Final BW : 0 MHz; Step # 0
25. Maximum Channels : 256
26. Channel Numbers : 0:255:1
27. LO5 -1  : 138
28. LO5 -2  : 167

29. Frequency Parameters (TPA) : 1292 1292 1230 1230 62 62
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) :
C02 : No fringe.
W03 : Feed jam.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 06 Aug 2017 16:00:00 - 07 Aug 2017 00:00:00

35. ONLINE Machine : Shivneri

36. No of Antennas Working(Fringing) at the end :27

37. Comments (During Observations) :
# GSB GAC configuration is as follows : 
# BEAM-1:130 :: C00 C01 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 W01 W02 Total=19
# BEAM-1:175 :: C00 C01 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 W01 W02 Total=19
# BEAM-2:130 :: C00 C01 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 W01 W02 Total=19
# BEAM-2:175 :: C00 C01 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 W01 W02 Total=19
---------------------------------------------------------------------------
16:00:00 : Started settings.
16:25:00 : Power equalized on 3C286 @ 200 counts.
16:30:22 : Phasing done on 3C286.

16:48:24 : Phasing done on 1626-298.
16:50:21 : Started scan on J1600-3053 for ~ 61.2032 min.

17:57:00 : Phasing done on 1822-096.
17:59:18 : Started scan on J1643-1224 for ~ 45.634 min.

18:50:00 : Phasing done on 1822-096.
18:52:24 : Started scan on J1713+0747 for ~ 45.9024 min.

19:44:00 : Started scan on 1822-096.
19:45:27 : Started scan on B1855+09 for ~ 42.6812 min.

20:33:00 : Phasing done on 1822-096.
20:35:48 : Started scan on J1909-3744 for ~ 42.4128 min.

21:24:00 : Phasing done on 1822-096.
21:27:53 : Started scan on B1937+21 for ~ 18.2536 min.

21:54:00 : Phasing done on 1822-096.
21:57:01 : Started scan on J2124-3358 for ~ 3.48966 min.

22:00:00 : C12 servo problem, so removed from GAC.

---------------------------------------------------------------------------
# GSB GAC configuration is as follows : 
# BEAM-1:130 :: C00 C01 C03 C04 C05 C06 C08 C09 C10 C11 C13 C14 E02 E03 S01 S02 W01 W02 Total=18
# BEAM-1:175 :: C00 C01 C03 C04 C05 C06 C08 C09 C10 C11 C13 C14 E02 E03 S01 S02 W01 W02 Total=18
# BEAM-2:130 :: C00 C01 C03 C04 C05 C06 C08 C09 C10 C11 C13 C14 E02 E03 S01 S02 W01 W02 Total=18
# BEAM-2:175 :: C00 C01 C03 C04 C05 C06 C08 C09 C10 C11 C13 C14 E02 E03 S01 S02 W01 W02 Total=18
---------------------------------------------------------------------------

22:00:56 : Started scan on J2124-3358 for ~ 46.4393 min.

22:52:00 : Phasing done on 2130+050.
22:54:38 : Started scan on J2145-0750 for ~ 45 min.
23:50: Started scan on J2317+14 for 55 min.
00:47 : Stopped scan on J2317+14.
00:49 : Started scan on 348 for 1 min. (ON 3C48)
00:53 : Started scan on 3C48 for 1 min. (+5d OFF 3C48)
00:55 : Stopped scan and observation session is over.