GTAC Observation Log

1. Date : 20/07/2021
2. Observation Sr. No. : 13313
3. Observer : Ayan Biswas, Poonam Chandra
4. Observer\'s Email : ayan.scc2@gmail.com, poonam@ncra.tifr.res.in
5. Project Name : Understanding the Intriguing Radio Emission from the Only Doubly Magnetic Massive Binary Star System Eps Lupi
6. Project Code : ddtC189
7. Operator(s) : Navnath
8. Command File : /data1/gtac/cmd/ddtc189/obs.py
9. LTA File : /gwbifrdata1/20jul/ddtc189_20jul2021_suba4_b5_gwb.lta, /gwbifrdata1/20jul/ddtc189_20jul2021_suba3_b4_gwb.lta
10. LogFlag File :  

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/TGC
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 :26

32. Name of Non-Working Antennas (with reason for each) :
C03 : Mechanical Work.
W03 : GAB getting set.
W04 : GAB getting set.
C01 : feed rotation problem

33. Note for Backup :

34. Start and End Time of Obs.(IST): 20 Jul 2021 17:00:00 - 20 Jul 2021 20:10:00

35. ONLINE Machine : TGC

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

37. RFI Status :

38. Comments (During Observations) :

------------GWB Setting---------
GPU_MODE  	: Realtime
GPU_LTA  	: 4
GPU_ACQ_BW  	: 400.0000
GPU_FINAL_BW  	: 400
GPU_EDGE_FRQ  	: 0
GPU_CHAN_MAX  	: 2048
GPU_CHAN_NUM  	: 0:2047:1
GPU_STOKES  	: Full_Stokes
GPU_SIDEBAND  	: 1 1
GPU_RF3  	: 725 725
GPU_DDCLO3  	: 0.000000  0.000000
GPU_SB3  	: 1 1
GCODE3  	: DDT189B
GPU_RF4  	: 1460 1460
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: 1 1
GCODE4  	: DDT189A
GPU_CNTRL  	: ONLINE/TGC
GPU_FSTOP  	: ON
GPU_BEAM_1  	: OFF
GPU_BEAM_2  	: OFF
GPU_BEAM_3  	: OFF
GPU_BEAM_4  	: OFF
GPU_BM_INT  	: 8
GPU_GAINEQ  	: ON
GPU_TPA  	: From online/TGC tpa
GPU_BITS  	: 4 Bits
GPU_FILRFI  	: RFI Filterring OFF
GPU_BEAM_S  	: OFF
GPU_PFB  	: ON
GPU_PFB_TAPS  	: 4
GPU_BEAM_BIT  	: 16
GPU_VLT_BIT  	: 8
GPU_ENV  	: RELEASED
--------------------------------
17:00:00 : Started setup.
17:05:00 : Started sub array splitting.          
create_array(\'3\',\'c01 c03 c05 c08 c10 c12 c14 w02 w04 w06 e03 e05 s01 s03 s06\')
create_array(\'4\',\'c00 c02 c04 c06 c09 c11 c13 w01 w03 w05 e02 e04 e06 s02 s04\')
17:10:00 : 610 feed rotation done.
         : C01,C05,S03 not rotating.
17:15:00 : Started Antenna and GAB setup.
17:22:30 : Started scan on 3C286 for ~ 20.58 min.
         : GSB scan not getting stop.
17:45:00 : scan stopped.
         : Track change from outer to inner.
18:00:00 : Started cmd file.
                   /data1/gtac/cmd/ddtc189/obs.py
18:08:11 : Started scan on 1626-298 for ~ 5.18975 min.
         : W03 and W04 Started working
18:15:11 : Started scan on HD136504 for ~ 30.2437 min.
18:47:18 : Started scan on 1626-298 for ~ 5.18975 min.
18:54:20 : Started scan on HD136504 for ~ 2.5054 min.
19:00:00 : S03 Started working.
20:10:00 : Observation session over.
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