GTAC Observation Log

1. Date : 23/04/2017
2. Observation Sr. No. : 9313
3. Observer : Bhaswati Bhattacharyya, Jayanta Roy, Ben Stappers, Michael Keith, Sally Cooper, Mateusz Malenta, Maura Ann McLaughlin, Paul Ray, Scott M. Ransom, Jayaram Narayanan Chengalur
4. Observer's Email : bhaswati.bhattacharyya78@gmail.com, jroy@ncra.tifr.res.in, Ben.Stappers@manchester.ac.uk, mkeith@pulsarastronomy.net, sally.cooper@postgrad.manchester.ac.uk, mateusz.malenta@student.manchester.ac.uk, maura.mclaughlin@mail.wvu.edu, paul.ray@nrl.navy.mil, sransom@nrao.edu, chengalur@ncra.tifr.res.in
5. Project Name : Regular timing of the pulsars discovered in the GMRT High Resolution Southern Sky (GHRSS) survey
6. Project Code : 32_035
7. Operator(s) : Nilesh
8. Command File : /odisk/gtac/cmd/jroy/32_035_23apr.cmd
9. LTA File : /gsbifrdata/23apr/32_035_23apr2017.lta, /gwbifrdata1/23apr/32_035_gwb_23apr2017.lta
10. LogFlag File : /odisk/online1/logflags/32_035.FLAGS.1, /odisk/online1/logflags/32_035.FLAGS

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 255 MHz, ILO2 : 255MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 20+14 dB, 32 MHz,OFF, IF-CH2 : 20+14 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) : 306 306 255 255 51 51
30. Integration Time : 16.1061 Sec
31. No of Antennas Working(Fringing) at the beginning :29

32. Name of Non-Working Antennas (with reason for each) :
S02 : FREQUENT ABC RESET.
33. Note for Backup :

34. Start and End Time of Obs.(IST): 23 Apr 2017 07:00:00 - 23 Apr 2017 08:00:00

35. ONLINE Machine : Lenyadri

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

37. Comments (During Observations) :
07:00 : Started settings.

------------GWB Setting---------
GPU_MODE  	: Realtime
GPU_LTA  	: 4
GPU_ACQ_BW  	: 200.0000
GPU_CHAN_MAX  	: 4096
GPU_CHAN_NUM  	: 0:4095:1
GPU_STOKES  	: Total_Intensity
GPU_RF4  	: 500  500
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: 1 1
GCODE4  	: 32_035
GPU_BEAM_1  	: IA
GPU_BEAM_2  	: PA
GPU_BEAM_3  	: 0:1
GPU_BEAM_4  	: 0:1
GPU_BM_INT  	: 4
--------------------------------
07:15 : GSB Buffer LOSS at Acquisition + No fringe for  (C04,C05,C06,C07)-CH2 and (E06,S01,S02,S03)-CH1. Tried restarting GSB twice, but did not worked.
# GWB GAC configuration is as follows : 
# BEAM-1:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S03 S04 S06 W01 W02 W03 W04 W05 
W06 Total=29
# BEAM-1:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S03 S04 S06 W01 W02 W03 W04 W05 
W06 Total=29
# BEAM-2:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S03 W01 W02 W03 Total=21
# BEAM-2:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S03 W01 W02 W03 Total=21

07:35 : Started phasing for GWB only.
07:36:52 : Started scan on 2225-049 for ~ 0.805306 min.
07:41:01 : Started scan on J2144-5237 for ~ 22.1459 min.
NOTE : Due to GSB problem only GWB used for observation.

08:02 : Stopped scan and observation closed.