GTAC Observation Log

1. Date : 12/08/2020
2. Observation Sr. No. : 12300
3. Observer : Peter Brown, Alak Ray, Poonam Chandra, Nayana AJ, Roger Chevalier, Keiichi Maeda, Claes Fransson
4. Observer\'s Email : grbpeter@yahoo.com, akr@tifr.res.in, poonam@ncra.tifr.res.in, nayan89deva@gmail.com, rac5x@virginia.edu, keiichi.maeda@kusastro.kyoto-u.ac.jp, claes@astro.su.se
5. Project Name : Understanding young supernovae interacting with their progenitor winds with the aid of low frequency observations
6. Project Code : 38_103
7. Operator(s) : Deepak, Nilesh
8. Command File : /odisk/gtac/cmd/poonam/obs.cmd
9. LTA File : /gsbifrdata1/12aug/38_103_12aug2020_band5_gsb.lta, /gwbifrdata1/12aug/38_103_12aug2020_band5_gwb.lta
10. LogFlag File : /odisk/online1/logflags/38_103.FLAGS.5

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1399 MHz ,RF2 : 1399 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1450 MHz, ILO2 : 1450MHz , 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) : 1399 1399 1450 1450 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) :
C03 : Mechanical Work.
S01 : Servo problem.
W04 : Very Low fringe.
33. Note for Backup :

34. Start and End Time of Obs.(IST): 12 Aug 2020 07:00:00 - 12 Aug 2020 09:15:00

35. ONLINE Machine : Shivneri

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

37. RFI Status :

38. Comments (During Observations) :
07:00 : Started settings.

------------GWB Setting---------
GPU_MODE  	: Realtime
GPU_LTA  	: 4
GPU_ACQ_BW  	: 400.0000
GPU_FINAL_BW  	: 400.0000
GPU_EDGE_FRQ  	: 0
GPU_CHAN_MAX  	: 2048
GPU_CHAN_NUM  	: 0:2047:1
GPU_STOKES  	: Total_Intensity
GPU_SIDEBAND  	: 1 1
GPU_RF4  	: 1460  1460
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: 1 1
GCODE4  	: 38_103
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  	: 128
GPU_GAINEQ  	: OFF
GPU_TPA  	: From GWB GUI.
GPU_BITS  	: 4 Bits
GPU_FILRFI  	: RFI Filterring OFF
GPU_BEAM_S  	: OFF
--------------------------------

07:18:09 : Started scan on 3C48 for ~ 4.96605 min.
07:26:39 : Started scan on 0240-231 for ~ 4.83183 min.

07:30 : GSB LO4 was not set. 
07:34 : Reconfigured the LO4 parameters.

07:37 : Restarted scan.

07:37:02 : Started scan on SN20NUB for ~ 25.2329 min.
08:03:13 : Started scan on 0240-231 for ~ 4.96605 min.
08:09:06 : Started scan on SN20NUB for ~ 47.7815 min.
08:58:23 : Started scan on 0240-231 for ~ 5.23449 min.
09:06:26 : Started scan on 3C48 for ~ 6.03979 min.

09:14 : observation closed.