GTAC Observation Log

1. Date : 18/07/2022
2. Observation Sr. No. : 14399
3. Observer : Visweshwar Ram Marthi, Yogesh Maan
4. Observer\'s Email : vrmarthi@ncra.tifr.res.in, ymaan@ncra.tifr.res.in
5. Project Name : Does the magnetar XTE J1810-197 scintillate at low frequencies?
6. Project Code : ddtC235
7. Operator(s) : Nilesh
8. Command File : /data1/gtac/cmd/ddtC235/ddtC235_18Jul2022_2100_cmd.py
9. LTA File : /gwbifrdata/18jul/ddtc235b_18jul2022_subar2_band4_gwb.lta, /gwbifrdata/18jul/ddtc235a_18jul2022_subar1_band5_gwb.lta
10. LogFlag File :   

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1281 MHz ,RF2 : 666 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1230 MHz, ILO2 : 615MHz , 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) : 1281 666 1230 615 51 51
30. Integration Time : 4.0265 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): 18 Jul 2022 21:00:00 - 18 Jul 2022 23:00:00

35. ONLINE Machine : TGC

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

37. RFI Status :

38. Comments (During Observations) :
21:00 : Started settings.

------------GWB Setting---------
GPU_MODE  	: Realtime
GPU_LTA  	: 4
GPU_ACQ_BW  	: 100.0000
GPU_FINAL_BW  	: 100
GPU_EDGE_FRQ  	: 0
GPU_CHAN_MAX  	: 2048
GPU_CHAN_NUM  	: 0:2047:1
GPU_STOKES  	: Total_Intensity
GPU_SIDEBAND  	: -1 -1
GPU_RF1  	: 1340  1340
GPU_DDCLO1  	: 0.000000  0.000000
GPU_SB1  	: -1 -1
GCODE1  	: DDT235A
GPU_RF2  	: 635  635
GPU_DDCLO2  	: 0.000000  0.000000
GPU_SB2  	: 1 1
GCODE2  	: DDT235B
GPU_CNTRL  	: ONLINE/TGC
GPU_FSTOP  	: ON
GPU_BEAM_1  	: VOLTAGE
GPU_BEAM_2  	: VOLTAGE
GPU_BEAM_3  	: PA
GPU_BEAM_4  	: PA
GPU_BM_INT  	: 8
GPU_GAINEQ  	: ON
GPU_TPA  	: From online/TGC tpa
GPU_BITS  	: 8 Bits
GPU_FILRFI  	: Voltage Detection
GPU_BEAM_S  	: OFF
GPU_PFB  	: OFF
GPU_PFB_TAPS  	: 4
GPU_BEAM_BIT  	: 16
GPU_VLT_BIT  	: 8
GPU_WALSH  	: OFF
GPU_ENV  	: RELEASED

---------------------------------

------GWB RFI Filter Setting-----
FILTERED_SIGNALS	:	RFI_ALL			# RFI_ALL=All signals filtered / RFI_CH1 =Channel 1 only / RFI_CH2=Channel 2 only
EXTERNAL MEDIAN	:	0			# integer value(-128 to 127)
THRESHOLD VALUE	:	3			# integer value(0 to 127)
CONSTANT VALUE		:	0			# integer value(-128 to 127)
FILTERING OPTION	:	DIGITAL NOISE		# BYPASS / CONSTANT=constant value is used / THRESHOLD / DIGITAL_NOISE
DDC_STATUS		:	OFF			# DDC = ON/OFF
--------------------------------

21:30 : POWER EQ DONE, BAND EQ DONE, RFI SETTINGS APPLIED.

==================================================================
Pulsar DATA files:
gwbh7:/nvme0/gpuuser/ddtC235_nvme0_18jul2022/*
gwbh7:/nvme1/gpuuser/ddtC235_nvme1_18jul2022/*
gwbh8:/nvme0/gpuuser/ddtC235_nvme0_18jul2022/*
gwbh8:/nvme1/gpuuser/ddtC235_nvme1_18jul2022/*
gwbh9:/data2/gpuuser/DDT235B_data2_18jul2022/*
gwbh10:/data2/gpuuser/DDT235A_data2_18jul2022/*

==================================================================

# GWB GAC configuration is as follows : 
# BEAM-1:130 :: C01 C04 C06 C09 C11 C13 E02 E04 E06 S02 S04 W01 W03 W05 Total=14
# BEAM-1:175 :: C01 C04 C06 C09 C11 C13 E02 E04 E06 S02 S04 W01 W03 W05 Total=14
# BEAM-2:130 :: C00 C02 C05 C08 C10 C12 C14 E03 E05 S01 S03 S06 W02 W04 W06 Total=15
# BEAM-2:175 :: C00 C02 C05 C08 C10 C12 C14 E03 E05 S01 S03 S06 W02 W04 W06 Total=15
# BEAM-3:130 :: C01 C04 C06 C09 C11 C13 E02 E04 E06 S02 S04 W01 W03 W05 Total=14
# BEAM-3:175 :: C01 C04 C06 C09 C11 C13 E02 E04 E06 S02 S04 W01 W03 W05 Total=14
# BEAM-4:130 :: C00 C02 C05 C08 C10 C12 C14 E03 E05 S01 S03 S06 W02 W04 W06 Total=15
# BEAM-4:175 :: C00 C02 C05 C08 C10 C12 C14 E03 E05 S01 S03 S06 W02 W04 W06 Total=15


21:34 : Started command file.
          /data1/gtac/cmd/ddtC235/ddtC235_18Jul2022_2100_cmd.py

23:00 : Stopped command file and observation over.