GTAC Observation Log

1. Date : 28/05/2023
2. Observation Sr. No. : 15452
3. Observer : Aditya Chowdhury, Nissim Kanekar, Jayaram Narayanan Chengalur
4. Observer\'s Email : chowdhury@ncra.tifr.res.in, nkanekar@ncra.tifr.res.in, chengalur@ncra.tifr.res.in
5. Project Name : %latex%The H{\\\\\\\\sc i} Mass of Galaxies at the Peak of the Epoch of Galaxy Assembly
6. Project Code : 43_128
7. Operator(s) : Shriram
8. Command File : /data1/gtac/cmd/43_128/43_128_28May2023_1900_cmd.py
9. LTA File : /gsbifrdata1/28may/43_128_28may2023_8s_gsb.lta, /gwbifrdata1/28may/43_128_28may2023_10.7s_gwb.lta, /gwbifrdata2/28may/43_128_28may2023_2.6s_gwb.lta
10. LogFlag File :  

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 281 MHz ,RF2 : 281 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 230 MHz, ILO2 : 230MHz , 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 : 512
26. Channel Numbers : 0:511:1
27. LO5 -1  : 149
28. LO5 -2  : 156

29. Frequency Parameters (TPA) : 281 281 230 230 51 51
30. Integration Time : 4.0265 Sec
31. No of Antennas Working(Fringing) at the beginning :28

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

S01 : RF not getting set. Telemetry problem.
C04 : RF not getting set.
S03 : 130 pol no fringe in GSB only. GWB okay

33. Note for Backup :

34. Start and End Time of Obs.(IST): 28 May 2023 19:00:00 - 28 May 2023 23:00:00

35. ONLINE Machine : TGC

36. No of Antennas Working(Fringing) at the end :28

37. RFI Status :

38. Comments (During Observations) :
******************************************************************* 
Important Note for Observer:
The refurbishment work of the W02 antenna reflector surface is 
currently in progress. The refurbishment of the inner sectors 
will commence from 16th May 2023 onwards. Please note that this 
ongoing work may affect the sensitivity of the antenna and could 
also alter the primary beam pattern depending on the size of the
holes present on the surface. We advise exercising caution in 
using the antenna, particularly if your targets are extended or 
if you are using a wide field. 
******************************************************************* 
------------GWB Setting---------
GPU_MODE  	: Realtime
GPU_LTA  	: 4
GPU_ACQ_BW  	: 200.0000
GPU_FINAL_BW  	: 200
GPU_EDGE_FRQ  	: 0
GPU_CHAN_MAX  	: 16384
GPU_CHAN_NUM  	: 0:16383:1
GPU_STOKES  	: Total_Intensity
GPU_SIDEBAND  	: -1 -1
GPU_RF4  	: 500  500
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: -1 -1
GCODE4  	: 44_128
GPU_CNTRL  	: ONLINE/TGC
GPU_FSTOP  	: ON
GPU_BEAM_1  	: OFF
GPU_BEAM_2  	: OFF
GPU_BEAM_3  	: OFF
GPU_BEAM_4  	: IA
GPU_BM_INT  	: 8
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  	: 4
GPU_BEAM_BIT  	: 16
GPU_VLT_BIT  	: 8
GPU_WALSH  	: OFF
GPU_ENV  	: RELEASED
--------------------------------

# GWB GAC configuration is as follows : 

# BEAM-4:130 :: C00 C01 C02 C03 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S02 S03 S04 S06 W01 W03 W04 W05 W06 Total=27
# BEAM-4:175 :: C00 C01 C02 C03 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S02 S03 S04 S06 W01 W03 W04 W05 W06 Total=27
--------------------------------------------------------------------------
19:00 : Started settings.
19:20 : Started command file,
        \'/data1/gtac/cmd/43_128/43_128_28May2023_1900_cmd.py\'		
22:37 : Command file stopped.
22:41 : Started scan on 1041+027 for ~ 5 min.
22:50 : Started scan on 3C286 for ~ 10 min.
23:00 : scan stopped and observation session over.