GTAC Observation Log

1. Date : 12/08/2020
2. Observation Sr. No. : 12298
3. Observer : Yulan Liu, Joris PW Verbiest, Krishnakumar MA, George Hobbs, Abhimanyu Susobhanan, BHAL CHANDRA JOSHI, Shi Dai, Ziwei Wu
4. Observer\'s Email : yliu@physik.uni-bielefeld.de, verbiest@physik.uni-bielefeld.de, kk.ambalappat@gmail.com, george.hobbs@csiro.au, s.abhimanyu@tifr.res.in, bcj@ncra.tifr.res.in, shi.dai@csiro.au, zwu@physik.uni-bielefeld.de
5. Project Name : Probing the Ionised Interstellar Medium with Pulsars
6. Project Code : 38_026
7. Operator(s) : Sachin, Shriram, Surender
8. Command File : /odisk/gtac/cmd/38_026/11aug20/38_026_11Aug2020.cmd.txt
9. LTA File : /gsbifrdata1/11aug/38_026B_11aug2020.lta.1, /gwbifrdata1/11aug/38_026A_11aug2020_gwb.lta, /gwbifrdata2/11aug/38_026B_11aug2020_gwb.lta
10. LogFlag File : /odisk/online1/logflags/38_026B.FLAGS.7, /odisk/online1/logflags/38_026A.FLAGS.8

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,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
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 : 16.1061 Sec
31. No of Antennas Working(Fringing) at the beginning :28

32. Name of Non-Working Antennas (with reason for each) :
C03 : Mechanical Work
C04 : FPS problem.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 11 Aug 2020 18:00:00 - 12 Aug 2020 00:00:00

35. ONLINE Machine : Shivneri

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

37. RFI Status :21:20 : MUOS-4 satellite interference at band 3.
22:06 : Interference vanished. 

38. 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  	: 2048
GPU_CHAN_NUM  	: 0:2047:1
GPU_STOKES  	: Total_Intensity
GPU_SIDEBAND  	: 1 1
GPU_RF3  	: 500  500
GPU_DDCLO3  	: 0.0000  0.0000
GPU_SB3  	: 1 1
GCODE3  	: 38_026B
GPU_RF4  	: 550  550
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: -1 -1
GCODE4  	: 38_026A
GPU_CNTRL  	: ONLINE
GPU_FSTOP  	: ON
GPU_BEAM_1  	: OFF
GPU_BEAM_2  	: Voltage
GPU_BEAM_3  	: PA
GPU_BEAM_4  	: OFF
GPU_BM_INT  	: 16
GPU_GAINEQ  	: OFF
GPU_TPA  	: From GWB GUI.
GPU_BITS  	: 8 Bits
GPU_FILRFI  	: RFI Filterring OFF
GPU_BEAM_S  	: OFF
--------------------------------
# GWB GAC configuration is as follows : 
# BEAM-2:130 :: C01 C02 C06 C08 C09 C11 C12 C14 Total=8
# BEAM-2:175 :: C01 C02 C06 C08 C09 C11 C12 C14 Total=8
# BEAM-3:130 :: C00 C05 C10 C13 E02 E03 S01 S02 W01 W02 Total=10
# BEAM-3:175 :: C00 C05 C10 C13 E02 E03 S01 S02 W01 W02 Total=10
----------------------------------
18:00:00 : Started set-up.
18:06:42 : Started scan on 3C286 for ~ 2.14748 min.
18:19:22 : Started command file.
           /odisk/gtac/cmd/38_026/11aug20/38_026_11Aug2020.cmd.txt
22:51:00 : W01 Removed from GAC due to ABC time-out.
22:55:00 : W01 started working.
23:22 : Online started giving problem.
Tried to solve problem till 23:55 but could not solve.
So please ignore last pulsar scan (J1853).

00:00 : Closed observation session.