GTAC Observation Log

1. Date : 11/01/2021
2. Observation Sr. No. : 12792
3. Observer : Yashwant Gupta, Shubham Singh, Kishalay De
4. Observer\'s Email : ygupta@ncra.tifr.res.in, ssingh@ncra.tifr.res.in, kde@caltech.edu
5. Project Name : Probing the microstructure emission properties of PSR B0950\\\\+08 with uGMRT
6. Project Code : 39_056
7. Operator(s) : Nilesh
8. Command File : /odisk/gtac/cmd
9. LTA File : /gsbifrdata/11jan/39_056_11jan2021_gsb.lta, /gwbifrdata/11jan/39_056_11jan2021_gwb.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 : 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 : 2.0132 Sec
31. No of Antennas Working(Fringing) at the beginning :29

32. Name of Non-Working Antennas (with reason for each) :
C03 : Mechanical Work.


33. Note for Backup :

34. Start and End Time of Obs.(IST): 11 Jan 2021 02:00:00 - 11 Jan 2021 03:00:00

35. ONLINE Machine : TGC

36. No of Antennas Working(Fringing) at the end :29

37. RFI Status :

38. Comments (During Observations) :
01:40 : Started settings.

NOTE : Dual CDP mode for GWB is not supported, so switched to 
       Single CDP mode with Single frequency (Band4) observation.


------------GWB Setting---------
GPU_MODE  	: Realtime
GPU_LTA  	: 4
GPU_ACQ_BW  	: 200.0000
GPU_FINAL_BW  	: 200
GPU_EDGE_FRQ  	: 0
GPU_CHAN_MAX  	: 2048
GPU_CHAN_NUM  	: 0:2047:1
GPU_STOKES  	: Total_Intensity
GPU_SIDEBAND  	: 1 1
GPU_RF4  	: 550  550
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: -1 -1
GCODE4  	: 39_056
GPU_CNTRL  	: ONLINE/TGC
GPU_FSTOP  	: ON
GPU_BEAM_1  	: VOLTAGE
GPU_BEAM_2  	: OFF
GPU_BEAM_3  	: OFF
GPU_BEAM_4  	: OFF
GPU_BM_INT  	: 128
GPU_GAINEQ  	: ON
GPU_TPA  	: From online/TGC tpa
GPU_BITS  	: 8 Bits
GPU_FILRFI  	: RFI Filterring OFF
GPU_BEAM_S  	: OFF
GPU_PFB  	: OFF
GPU_PFB_TAPS  	: 16
GPU_BEAM_BIT  	: 16
GPU_VLT_BIT  	: 8
GPU_ENV  	: RELEASED
--------------------------------

01:50 : power eq at 120 counts on 0837-198.
01:55 : Phasing on 0837-198.

# GWB GAC configuration is as follows : 
# BEAM-1:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 W01 W02 Total=19
# BEAM-1:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 W01 W02 Total=19

01:56:05 : Started scan on 0837-198 for ~ 4.38444 min.
02:00:45 : Started scan on 0837-198 for ~ 15.0324 min.
02:16:49 : Started scan on 0837-198 for ~ 3.44492 min.
02:24:33 : Started scan on B0950+08 for ~ 6.93458 min.
02:32:18 : Started scan on B0950+08 for ~ 27.0672 min.
03:02:10 : Started scan on 0837-198 for ~ 2.5054 min.
03:04:56 : Started scan on 0837-198 for ~ 3.5344 min.
03:09:22 : Started scan on 0837-198 for ~ 3.04227 min.

GSB beam data : node[35-36]:/mnt/[b-c]/gsbuser/39_056_11jan2021/*
GWB beam data : gwbh7:/data6/gpuuser/39_056_data6_11jan2021/*

04:15 : Observation closed.