GTAC Observation Log

1. Date : 09/11/2019
2. Observation Sr. No. : 11569
3. Observer : Barnali Das, Poonam Chandra, Wade, Matthew Shultz, James Sikora
4. Observer's Email : barnali@ncra.tifr.res.in, poonam@ncra.tifr.res.in, marmottecam@yahoo.ca, matt.shultz@gmail.com, james.sikora@queensu.ca
5. Project Name : Low frequency study of the Ap star HD 12447
6. Project Code : 37_034
7. Operator(s) : Nilesh, Rupsing
8. Command File : /data1/gtac/cmd/37_034/8_nov/obs.py
9. LTA File : /gsbifrdata1/08nov/37_034_08nov2019_gsb.lta, /gwbifrdata2/08nov/37_034_08nov2019_gwb.lta
10. LogFlag File : /odisk/online1/logflags/PNTG.FLAGS.3361

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540MHz , 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) : 591 591 540 540 51 51
30. Integration Time : 8.053 Sec
31. No of Antennas Working(Fringing) at the beginning :27

32. Name of Non-Working Antennas (with reason for each) :
C04 : Mechanical work.
C06 : No Fringe GSB.
E05 : Servo problem.

33. Note for Backup :Intermittent broadband RFI observed at GWB.

34. Start and End Time of Obs.(IST): 08 Nov 2019 18:00:00 - 09 Nov 2019 04:00:00

35. ONLINE Machine : TGC

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

37. RFI Status :

38. Comments (During Observations) :
18:05 : Started settings using TGC.

------------------------------------------
GPU_MODE    = 0
GPU_LTA     = 4
GPU_ACQ_BW  = 400.0000
GPU_FINAL_BW= 1
GPU_EDGE_FRQ= 0
GPU_CHAN_MAX= 4096
GPU_CHAN_NUM= 0:4095:1
GPU_STOKES  = 2
GPU_RF4     = 550 550
GPU_DDCLO4  = 0.000000 0.000000
GPU_SB4     = -1 -1
GCODE4      = SUBA4
GPU_CNTRL   = 1
GPU_FSTOP   = 1
GPU_BEAM_1  = 0:1
GPU_BEAM_2  = 0:1
GPU_BEAM_3  = 0:1
GPU_BEAM_4  = 0:1
GPU_BM_INT  = 8
GPU_GAINEQ  = 0
GPU_TPA     = 0
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NOTE :
Intermittent tracking issues  for some antennas (C02, E06 and S02) and repeating RF/FPS settings to problematic antennas such as C05, C06, E05, E06, S02, S06 caused delay in starting observations.

Later after 07:20 everything started running OK via TGC.

18:52:14 : Started scan on 3C48 for ~ 8.85836 min.
19:05:52 : Started scan on 0204+152 for ~ 3.75809 min.
19:30:29 : Started scan on 0204+152 for ~ 5.3687 min.
19:40:34 : Started scan on HD12447 for ~ 45.0971 min.
20:28:37 : Started scan on 0204+152 for ~ 5.90557 min.
20:36:44 : Started scan on HD12447 for ~ 47.6472 min.
21:26:39 : Started scan on 0204+152 for ~ 4.83183 min.
21:33:40 : Started scan on HD12447 for ~ 47.9157 min.
22:24:18 : Started scan on 0204+152 for ~ 4.69762 min.
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23:36:11 : Started scan on 3C48 for ~ 6.8451 min.
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00:30 : Scan No.# 11 and 12 are are bad
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00:40 : Command file problem.
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01:00 : Command file problem solved by jitendra
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01:10 : Restarted command file.
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00:32:12 : Started scan on 0204+152 for ~ 10.6032 min.
01:14:00 : Started scan on HD12447 for ~ 45.5809 min.
02:18:31 : Started scan on 0204+152 for ~ 4.16075 min.
02:26:04 : Started scan on HD12447 for ~ 41.8759 min.
03:16:33 : Started scan on 0204+152 for ~ 4.29496 min.
03:24:08 : Started scan on HD12447 for ~ 27.3804 min.
03:54:10 : Started scan on HD12447 for ~ 5.23449 min.
04:02:37 : Started scan on 3C48 for ~ 4.96605 min.
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