GTAC Observation Log

1. Date : 26/02/2017
2. Observation Sr. No. : 9223
3. Observer : Yashwant Gupta, BHAL CHANDRA JOSHI, Jayanta Roy, Yogesh Maan, Kishalay De, Manjari Bagchi, Gopakumar Achamveedu, Nikhil Vijay Naik
4. Observer's Email : ygupta@ncra.tifr.res.in, bcj@ncra.tifr.res.in, jroy@ncra.tifr.res.in, ymaan@ncra.tifr.res.in, ugkishalayde@ug.iisc.in, manjari.bagchi@gmail.com, gopu.tifr@gmail.com, naiknikhil27@gmail.com
5. Project Name : Towards precision pulsar timing with the upgraded GMRT
6. Project Code : 31_057
7. Operator(s) : Deepak, Shilpa
8. Command File : /odisk/gtac/cmd/31_057/26feb17.cmd
9. LTA File : /gsbifrdata1/26feb/31_057_26feb2017.lta, /gwbifrdata1/26feb/31_057_suba4_1460.lta, /gwbifrdata1/26feb/31_057_suba2_500.lta
10. LogFlag File : /odisk/online1/logflags/31_057B.FLAGS.7,, /odisk/online1/logflags/31_057.FLAGS.20

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1454 MHz ,RF2 : 1454 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1505 MHz, ILO2 : 1505MHz , 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_lenyadri
15. GSB Mode : Realtime
16. GSB LTA : 8
17. GSB CTRL : ONLINE
18. GSB Fstop : ON
19. GAIN EQ : OFF
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) : 1454 1454 1505 1505 51 51
30. Integration Time : 8.053 Sec
31. No of Antennas Working(Fringing) at the beginning :28

32. Name of Non-Working Antennas (with reason for each) :
C03 : Frequently applying azimuth brakes.
C08 : Frequently getting reset.
 

33. Note for Backup :

34. Start and End Time of Obs.(IST): 26 Feb 2017 02:00:00 - 26 Feb 2017 06:00:00

35. ONLINE Machine : Lenyadri

36. No of Antennas Working(Fringing) at the end :26

37. Comments (During Observations) :
GWB Pulsar Data Files : /data7/gpuuser/26feb2017/*
------------GWB Setting----------------------------------------------------
GPU_MODE  	: Realtime
GPU_LTA  	: 4
GPU_ACQ_BW  	: 200.0000
GPU_FINAL_BW  	: 1.0
GPU_EDGE_FRQ  	: 0.000000
GPU_CHAN_MAX  	: 2048
GPU_CHAN_NUM  	: 0:2047:1
GPU_STOKES  	: Total_Intensity
GPU_RF  	: 1460  1460
GPU_LO-1  	: 540  540
GPU_DDC  	: OFF
GPU_DDCLO  	: 0.0000  0.0000
GPU_SIDEBAND  	: 1 1
GPU_RF2  	: 500  500
GPU_DDCLO2  	: 0.0000  0.0000
GPU_SB2  	: 1 1
GCODE2  	: 31_057B
GPU_RF4  	: 1460  1460
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: 1 1
GCODE4  	: 31_057
GPU_CNTRL  	: 8
GPU_FSTOP  	: OFF
GPU_BEAM_1  	: PA
GPU_BEAM_2  	: PA
GPU_BM_INT  	: 8
GPU_GAINEQ  	: ON
GPU_TPA  	: From GWB GUI.
GPU_BITS  	: 32 inputs.
GPU_FILRFI  	: RFI Filterring OFF
---------------------------------------------------------------------------
# sub 2 # C00 C04 C08 C09 C10 W05 E02 E03 S03 S04
ante 10 7 3 24 4 12 16 17 18 28 29
cp 0;defs 2;subar 2
tpa 306 306 255 255 51 51

# sub 4 # C01 C02 C03 C05 C06 C11 C12 C13 C14 W01 W02 W03 W04 W06 E04 E05 E06 S01 S02 S06
ante 20 6 5 1 19 20 9 2 11 10 8 13 14 15 25 21 22 23 26 27 30
cp 0;defs 4;subar 4
tpa 1454 1454 1505 1505 51 51
---------------------------------------------------------------------------
GWB GAC Config :
# BEAM-1:130 :: C00 C04 C09 C10 Total=4
# BEAM-1:175 :: C00 C04 C09 C10 Total=4
# BEAM-2:130 :: C01 C02 C05 C06 C12 C13 C14 S01 S02 W01 W02 Total=11
# BEAM-2:175 :: C01 C02 C05 C06 C12 C13 C14 S01 S02 W01 W02 Total=11
---------------------------------------------------------------------------
02:00 : Started settings.
02:30 : Power equalized on 1311-222 @ 150 counts at GWB o/p.
02:37 : '/odisk/gtac/cmd/31_057/26feb17.cmd' command file started.
04:14 : W04 abc timeout.
04:33 : C01 automatically shows low fringe, so removed from GAC.
06:00 : Stopped command file and observing session over.