GTAC Observation Log

1. Date : 15/08/2018
2. Observation Sr. No. : 10471
3. Observer : Elliott Polzin, Bhaswati Bhattacharyya, Rene Breton, Mallory Roberts, Ben Stappers
4. Observer's Email : elliott.polzin@postgrad.manchester.ac.uk, bhaswati.bhattacharyya78@gmail.com, rene.breton@manchester.ac.uk, malloryr@gmail.com, Ben.Stappers@manchester.ac.uk
5. Project Name : Characterisation of the radio eclipses of black widows and redbacks
6. Project Code : 34_016
7. Operator(s) : Deepak, Nilesh, Sachin, Shilpa
8. Command File : /odisk/gtac/cmd/jroy/34_016_14aug.cmd
9. LTA File : /gsbifrdata/14aug/34_016_14aug2018_gsb.lta, /gwbifrdata/14aug/34_016_14aug2018_gwb.lta
10. LogFlag File : /odisk/online1/logflags/PNTG.FLAGS.2856, /odisk/online1/logflags/34_016.FLAGS.2, /odisk/online1/logflags/34_016.FLAGS.1, /odisk/online1/logflags/34_016.FLAGS

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 : 24+4 dB, 32 MHz,OFF, IF-CH2 : 24+4 dB, 32 MHz,OFF

GSB SETTINGS :

14. GSB Host : gsbm1
15. GSB Mode : Realtime
16. GSB LTA : 8
17. GSB CTRL : ONLINE
18. GSB Fstop : ON
19. GAIN EQ : ON
20. Stokes : Total_Intensity
21. Beam - 1 : PA
22. Beam - 2 : PA
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) : 591 591 540 540 51 51
30. Integration Time : 2.0132 Sec
31. No of Antennas Working(Fringing) at the beginning :28

32. Name of Non-Working Antennas (with reason for each) :
C03 : 130 pol no fringe GWB.
W06 : Low fringe due to surface refurbishment work.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 14 Aug 2018 17:45:00 - 15 Aug 2018 01:25:00

35. ONLINE Machine : Shivneri

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

37. Comments (During Observations) :
------------GWB Setting----------------------------------------------------
GPU_MODE  	: Realtime
GPU_LTA  	: 4
GPU_ACQ_BW  	: 200.0000
GPU_FINAL_BW  	: 200.0000
GPU_EDGE_FRQ  	: 0
GPU_CHAN_MAX  	: 4096
GPU_CHAN_NUM  	: 0:4095:1
GPU_STOKES  	: Total_Intensity
GPU_SIDEBAND  	: 1 1
GPU_RF4  	: 550  550
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: -1 -1
GCODE4  	: 34_016
GPU_CNTRL  	: ONLINE
GPU_FSTOP  	: ON
GPU_BEAM_1  	: OFF
GPU_BEAM_2  	: OFF
GPU_BEAM_3  	: IA
GPU_BEAM_4  	: PA
GPU_BM_INT  	: 4
GPU_GAINEQ  	: OFF
GPU_TPA  	: From GWB GUI.
GPU_BITS  	: 64 inputs.
GPU_FILRFI  	: RFI Filterring OFF
GPU_BEAM_S  	: OFF
---------------------------------------------------------------------------
# GSB GAC configuration is as follows : 
# BEAM-1:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=22
# BEAM-1:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=22
# BEAM-2:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=22
# BEAM-2:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=22

# GWB GAC configuration is as follows : 
# BEAM-3:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W03 W04 W05 Total=28
# BEAM-3:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W03 W04 W05 Total=28
# 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
---------------------------------------------------------------------------
17:45 : Started settings.
18:30 : Power equalized and phasing done on 1829+487.
18:40 : '/odisk/gtac/cmd/jroy/34_016_14aug.cmd' command file started.

01:15 : Stopped command file.
01:16 : Started scan on 1829+487 for ~ 5 min.
01:23 : Stopped scan and observation closed.