GTAC Observation Log

1. Date : 24/09/2023
2. Observation Sr. No. : 15924
3. Observer : harish k vedantham, Sanne Bloot
4. Observer\'s Email : vedantham@astron.nl, bloot@astron.nl
5. Project Name : A volume limited survey of the coldest brown dwarfs- a bridge to exoplanet magnetism
6. Project Code : 44_108
7. Operator(s) : Navnath, Sachin, Shilpa, Shriram
8. Command File : /data1/gtac/cmd/44_108/44_108_23Sep2023_1900_cmd.py
9. LTA File : /gsbifrdata1/23sep/44_108_23sep2023_b4_gsb.lta, /gwbifrdata2/23sep/44_108_23sep2023_b4_gwb.lta, /gsbifrdata/24sep/44_108_24sep23_gsb_b4_s55.lta, /gsbifrdata/24sep/44_108_24sep2023_b4_gsb.lta, /gwbifrdata/24sep/44_108_24sep2023_b4_gwb.lta, /gwbifrdata1/24sep/44_108_24sep23_gwb_b4_s55.lta.1, /gwbifrdata1/24sep/44_108_24sep23_gwb_b4_s55.lta
10. LogFlag File :  

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/TGC
18. GSB Fstop : ON
19. GAIN EQ : ON
20. Stokes : Full_Stokes
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 : 2.0132 Sec
31. No of Antennas Working(Fringing) at the beginning :30

32. Name of Non-Working Antennas (with reason for each) :

 
33. Note for Backup :

34. Start and End Time of Obs.(IST): 23 Sep 2023 19:00:00 - 24 Sep 2023 13:00:00

35. ONLINE Machine : TGC

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

37. RFI Status :

38. Comments (During Observations) :

------------GWB Setting---------
GPU_MODE  	: Realtime
GPU_LTA  	: 4
GPU_ACQ_BW  	: 400.0000
GPU_FINAL_BW  	: 400
GPU_EDGE_FRQ  	: 0
GPU_CHAN_MAX  	: 4096
GPU_CHAN_NUM  	: 0:4095:1
GPU_STOKES  	: Full_Stokes
GPU_SIDEBAND  	: 1 1
GPU_RF4  	: 550  550
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: 1 1
GCODE4  	: 44_108
GPU_CNTRL  	: ONLINE/TGC
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  	: ON
GPU_TPA  	: From online/TGC tpa
GPU_BITS  	: 4 Bits
GPU_FILRFI  	: RFI Filterring OFF
GPU_BEAM_S  	: OFF
GPU_PFB  	: ON
GPU_PFB_TAPS  	: 4
GPU_BEAM_BIT  	: 16
GPU_VLT_BIT  	: 8
GPU_WALSH  	: OFF
GPU_ENV  	: RELEASED
--------------------------------
19:00 : Started settings.
19:15 : Started command file,
       \'/data1/gtac/cmd/44_108/44_108_23Sep2023_1900_cmd.py\'
00:05 : cmd file stopped.
-------------------------------------------
00:10 : Started cmd file
01:11 : Started scan on 3C147 for ~ 3.22122 min.
        \'/data1/gtac/cmd/44_108/44_108_24Sep2023_0100_cmd.py\'
01:25 : cmd file stopped. Track change from outer to inner.
01:40 : Restarted cmd file.
07:10 : Started command file,
        \'/data1/gtac/cmd/44_108/44_108_24Sep2023_0700_cmd.py\'
09:00 : C01 not tracking properly. Applied brakes.
--------------------------------------------------------------------------
09:16-13:00 : GWB corr problem. observation could not happen.
13:00 : Observation session over.
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