GTAC Observation Log

1. Date : 21/12/2019
2. Observation Sr. No. : 11702
3. Observer : Jayanta Roy, Bhaswati Bhattacharyya, Lina Levin, Ben Stappers, Paul Ray
4. Observer's Email : jroy@ncra.tifr.res.in, bhaswati.bhattacharyya78@gmail.com, lina.s.levin@gmail.com, Ben.Stappers@manchester.ac.uk, paul.ray@nrl.navy.mil
5. Project Name : Multi-frequency timing of millisecond pulsars discovered with the GMRT
6. Project Code : 37_053
7. Operator(s) : Navnath, Pramod, Rupsing
8. Command File : /odisk//gtac/cmd//jroy/37_053_21dec.cmd
9. LTA File : /gwbifrdata1/21dec/37_053B_21dec19_band3.lta, /gwbifrdata1/21dec/37_053A_21dec19_band4.lta
10. LogFlag File : /odisk/online1/logflags/37_053B.FLAGS.5, /odisk/online1/logflags/37_053A.FLAGS.5

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 : 4+14 dB, 32 MHz,OFF, IF-CH2 : 4+14 dB, 32 MHz,OFF

GSB SETTINGS :

14. GSB Host : gsbm1_shivneri
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 : 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) : 591 591 540 540 51 51
30. Integration Time : 2.0132 Sec
31. No of Antennas Working(Fringing) at the beginning :30

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

33. Note for Backup :

34. Start and End Time of Obs.(IST): 21 Dec 2019 04:00:00 - 21 Dec 2019 09:10:00

35. ONLINE Machine : Shivneri

36. No of Antennas Working(Fringing) at the end :30

37. RFI Status :

38. Comments (During Observations) :
04:00 : Started setup.
      : Antennas Separated into two Sub array

# @325 MHz #sub 2 # C00 C02 C03 C04 C05 C10 C11 W01 E02 S01
ante 10 7 5 1 3 19 12 9 8 17 26
cp 0;defs 2;subar 2

#@610 MHz# sub 4 # C01 C06 C08 C09 C12 C13 C14 W02 W03 W04 W05 W06 E03 E04 E05 E06 S02 S03 S04 S06
ante 20 6 20 24 4 2 11 10 13 14 15 16 25 18 21 22 23 27 28 29 30
cp 0;defs 4;subar 4

------------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_RF2  	: 500  500
GPU_DDCLO2  	: 0.0000  0.0000
GPU_SB2  	: 1 1
GCODE2  	: 37_053B
GPU_RF4  	: 550  550
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: -1 -1
GCODE4  	: 37_053A
GPU_CNTRL  	: ONLINE
GPU_FSTOP  	: ON
GPU_BEAM_1  	: Voltage
GPU_BEAM_2  	: OFF
GPU_BEAM_3  	: OFF
GPU_BEAM_4  	: PA
GPU_BM_INT  	: 4
GPU_GAINEQ  	: OFF
GPU_TPA  	: From GWB GUI.
GPU_BITS  	: 8 Bits
GPU_FILRFI  	: RFI Filterring OFF
GPU_BEAM_S  	: OFF
--------------------------------
04:15 : Started feed rotation for SUB array 2 at band3.
      : Started RF,GABLo and ofc parameters settings.

04:30 : Started power eq on 1154-350 at 150 counts.
04:40 : Started phasing for two Sub-array
04:45 : Second iteration of phasing done
      : final GAC setup is done
# GWB GAC configuration is as follows : 
# BEAM-1:130 :: C00 C02 C03 C04 C05 C10 C11 E02 S01 W01 Total=10
# BEAM-1:175 :: C00 C02 C03 C04 C05 C10 C11 E02 S01 W01 Total=10
# BEAM-2:130 :: Total=0
# BEAM-2:175 :: Total=0
# BEAM-3:130 :: Total=0
# BEAM-3:175 :: Total=0
# BEAM-4:130 :: C01 C06 C08 C09 C12 C13 C14 E03 E04 E05 S02 S03 S04 W02 W03 W04 
W05 Total=17
# BEAM-4:175 :: C01 C06 C08 C09 C12 C13 C14 E03 E04 E05 S02 S03 S04 W02 W03 W04 
W05 Total=17
------------------------------------------------------------------------
04:50 : Started cmd file.
    /odisk//gtac/cmd//jroy/37_053_21dec.cmd
09:00 : Stopped command file and observation session over.