GTAC Observation Log

1. Date : 22/10/2019
2. Observation Sr. No. : 11518
3. Observer : Joseph Russell Callingham, harish k vedantham, Shimwell, Ivey Davis
4. Observer's Email : callingham@astron.nl, vedantham@astron.nl, shimwell@strw.leidenuniv.nl, idavis97@unm.edu
5. Project Name : Confirming the first radio detections of exoplanets
6. Project Code : 37_041
7. Operator(s) : Deepak, Shilpa
8. Command File : /data1/gtac/cmd/37_041/obs.py
9. LTA File : /gsbifrdata1/22oct/37_041_22oct2019_gsb.lta, /gwbifrdata/22oct/37_041_22oct2019_gwb.lta
10. LogFlag File : /odisk/online1/logflags/37_041.FLAGS.1

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 156 MHz ,RF2 : 156 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 218 MHz, ILO2 : 218MHz , IVLO1 : 62 MHz, IVLO2 : 62 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 16 MHz,ON, IF-CH2 : 4+14 dB, 16 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 : Full_Stokes
21. Beam - 1 : OFF
22. Beam - 2 : OFF
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) : 156 156 218 218 62 62
30. Integration Time : 4.0265 Sec
31. No of Antennas Working(Fringing) at the beginning :24

32. Name of Non-Working Antennas (with reason for each) :
C01 : Servo problem.
C04 : Mechanical work.
E05 : No fringe in GWB.
S03 : No fringe in GWB.
W02 : Not tracking in TGC due to power failure.
C11 : No fringe in GWB.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 22 Oct 2019 04:00:00 - 22 Oct 2019 06:28:00

35. ONLINE Machine : Shivneri

36. No of Antennas Working(Fringing) at the end :24

37. RFI Status :

38. Comments (During Observations) :
Note : 1.3s integration not possible in full stokes, 200MHz bandwidth, 8k channels for GWB. Also for this setup 2.567s integration not possible in GWB. Minimum 5s integration is possible for this setup. So taken 5s integration for GWB.
Also 3C286 is not up in observation slot (Rise time : 06h40m50.33s). 
3C48 is also set at 05h30m (in between observation).
So used 3C147 as a phase calibrator and flux calibrator.
------------GWB Setting---------------------------------------------------
GPU_MODE  	: Realtime
GPU_LTA  	: 8
GPU_ACQ_BW  	: 200.0000
GPU_FINAL_BW  	: 200.0000
GPU_EDGE_FRQ  	: 0
GPU_CHAN_MAX  	: 8192
GPU_CHAN_NUM  	: 0:8191:1
GPU_STOKES  	: Full_Stokes
GPU_SIDEBAND  	: 1 1
GPU_RF4  	: 300  300
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: -1 -1
GCODE4  	: 37_041
GPU_CNTRL  	: ONLINE
GPU_FSTOP  	: ON
GPU_BEAM_1  	: OFF
GPU_BEAM_2  	: OFF
GPU_BEAM_3  	: OFF
GPU_BEAM_4  	: OFF
GPU_BM_INT  	: 8
GPU_GAINEQ  	: OFF
GPU_TPA  	: From online tpa
GPU_BITS  	: 4 Bits
GPU_FILRFI  	: RFI Filterring OFF
GPU_BEAM_S  	: OFF
--------------------------------------------------------------------------
03:30 : Started settings by using TGC.

04:22 : '/data1/gtac/cmd/37_041/obs.py' command file started.
06:28 : Stopped command file and observing session over.