GTAC Observation Log

1. Date : 20/08/2018
2. Observation Sr. No. : 10484
3. Observer : Barnali Das
4. Observer's Email : barnali@ncra.tifr.res.in
5. Project Name : Five hours of DDT time to observe the magnetic star HD 133880 near its magnetic null at 610 MHz
6. Project Code : DDTC010
7. Operator(s) : Sachin, Surender
8. Command File : /odisk/gtac/cmd
9. LTA File : /gsbifrdata1/20aug/ddtc010_20aug2018_gsb.lta, /gwbifrdata2/20aug/ddtc010_20aug2018.lta
10. LogFlag File : /odisk/online1/logflags/TST1918.FLAGS

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 :26

32. Name of Non-Working Antennas (with reason for each) :
C14 : : Taken for Mech Work. 
W06 : : Taken for Mech Work. 
C14 : : Taken for Mech Work. 
S01 : : Phase and amplitude jump observed in Both (GSB &GWB).
33. Note for Backup :

34. Start and End Time of Obs.(IST): 20 Aug 2018 15:00:00 - 20 Aug 2018 20:00:00

35. ONLINE Machine : Lenyadri

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

37. Comments (During Observations) :
15:00 : Started set-up. 
------------GWB Setting--------- 
GPU_MODE : Realtime 
GPU_LTA : 4 
GPU_ACQ_BW : 400.0000 
GPU_FINAL_BW : 400.0000 
GPU_EDGE_FRQ : 0 
GPU_CHAN_MAX : 2048 
GPU_CHAN_NUM : 0:2047:1 
GPU_STOKES : Total_Intensity 
GPU_SIDEBAND : 1 1 
GPU_RF4 : 550 550 
GPU_DDCLO4 : 0.0000 0.0000 
GPU_SB4 : -1 -1 
GCODE4 : DDTC010 
GPU_CNTRL : ONLINE 
GPU_FSTOP : ON 
GPU_BEAM_1 : OFF 
GPU_BEAM_2 : OFF 
GPU_BEAM_3 : OFF 
GPU_BEAM_4 : OFF 
GPU_BM_INT : 128 
GPU_GAINEQ : OFF 
GPU_TPA : From GWB GUI. 
GPU_BITS : For 32 inputs 
GPU_FILRFI : RFI Filterring OFF 
GPU_BEAM_S : OFF 
----------------------------------------------------------------------- 
15:21:05 : Started scan on 3C286 for ~ 10.0663 min. 
15:40:32 : Started command file. 
"/odisk/gtac/cmd/ddtc010/20_aug/obs.cmd" 
20:00:00 : Stopped command file and observing session over.