GTAC Observation Log

1. Date : 12/12/2022
2. Observation Sr. No. : 14877
3. Observer : Nissim Kanekar, Balpreet Kaur, Aditya Chowdhury
4. Observer\'s Email : nkanekar@ncra.tifr.res.in, bkaur@ncra.tifr.res.in, chowdhury@ncra.tifr.res.in
5. Project Name : The HI mass of an FRB host galaxy at z\\\\\\\\approx 0.0771$
6. Project Code : ddtC256
7. Operator(s) : Nilesh, Sachin, Shilpa
8. Command File : /data1/gtac/cmd/ddtc256/cmd_11dec2022_mod.py
9. LTA File : /gwbifrdata2/11dec/ddtc256_11dec2022_10.7s_gwb.lta.3, /gwbifrdata2/11dec/ddtc256_11dec2022_10.7s_gwb.lta.2, /gwbifrdata2/11dec/ddtc256_11dec2022_10.7s_gwb.lta.1, /gwbifrdata2/11dec/ddtc256_11dec2022_10.7s_gwb.lta, /gwbifrdata2/11dec/ddtc256_11dec2022_1.3s_gwb.lta.3, /gwbifrdata2/11dec/ddtc256_11dec2022_1.3s_gwb.lta.2, /gwbifrdata2/11dec/ddtc256_11dec2022_1.3s_gwb.lta.1, /gwbifrdata2/11dec/ddtc256_11dec2022_1.3s_gwb.lta
10. LogFlag File :  

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1409 MHz ,RF2 : 1409 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1460 MHz, ILO2 : 1460MHz , 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) : 1409 1409 1460 1460 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 Dec 2022 18:00:00 - 12 Dec 2022 00:00:00

35. ONLINE Machine : TGC

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

37. RFI Status :

38. Comments (During Observations) :
18:00 : Started settings.

------------GWB Setting---------
GPU_MODE  	: Realtime
GPU_LTA  	: 2
GPU_ACQ_BW  	: 400.0000
GPU_FINAL_BW  	: 400
GPU_EDGE_FRQ  	: 0
GPU_CHAN_MAX  	: 8192
GPU_CHAN_NUM  	: 0:8191:1
GPU_STOKES  	: Total_Intensity
GPU_SIDEBAND  	: 1 1
GPU_RF4  	: 1460  1460
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: 1 1
GCODE4  	: DDTC256
GPU_CNTRL  	: TGC
GPU_FSTOP  	: ON
GPU_BEAM_1  	: IA
GPU_BEAM_2  	: PA
GPU_BEAM_3  	: OFF
GPU_BEAM_4  	: OFF
GPU_BM_INT  	: 16
GPU_GAINEQ  	: ON
GPU_TPA  	: From TGC tpa
GPU_BITS  	: 4 Bits
GPU_FILRFI  	: RFI Filterring OFF
GPU_BEAM_S  	: OFF
GPU_PFB  	: OFF
GPU_PFB_TAPS  	: 4
GPU_BEAM_BIT  	: 8
GPU_VLT_BIT  	: 8
GPU_WALSH  	: OFF
GPU_ENV  	: RELEASED
--------------------------------

--------------------------------------------------------------
# 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 S03 W01 W02 W03 Total=21
# BEAM-1:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=21
# BEAM-2:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=21
# BEAM-2:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=21
# BEAM-3:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=21
# BEAM-3:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=21
# BEAM-4:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=21
# BEAM-4:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=21

--------------------------------------------------------------
Pulsar DATA files with 16Bit:
gwbh7:/data8/gpuuser/DDTC256_data8_11dec2022/*
gwbh8:/data8/gpuuser/DDTC256_data8_11dec2022/*

Pulsar DATA files with 8Bit:
gwbh7:/data8/gpuuser/DDTC256_11dec2022_data8/*
gwbh8:/data8/gpuuser/DDTC256_11dec2022_data8/*
--------------------------------------------------------------

18:12 : Started command file.

Noticed that pulsar recording did not started on 3C48. also phasing command missing for 3C48.

18:27 : Started phasing on 3C48.

19:00 : Noticed that GWB pulsar data recording scripts are started for 16bit mode. Halted GWB correlator.

19:05 : Restarted GWB with Beam Integ = 8 and Beam_BIT = 8.
19:25 : GWB acq got killed after buffer loss and processing exceeds byeond allowed processing limits.

19:30 : Restarted GWB. Beam Integ = 16 and Beam_BIT = 8.
19:34 : Started command file.
           /data1/gtac/cmd/ddtc256/cmd_11dec2022_mod.py

23:46 : Started scan on 3C48 for ~ 7.22538 min.
00:00 : Observation session over.
--------------------------------------------