GTAC Observation Log

1. Date : 04/01/2020
2. Observation Sr. No. : 11761
3. Observer : Barnali Das, Poonam Chandra, Wade, Matthew Shultz, James Sikora
4. Observer's Email : barnali@ncra.tifr.res.in, poonam@ncra.tifr.res.in, marmottecam@yahoo.ca, matt.shultz@gmail.com, james.sikora@queensu.ca
5. Project Name : Low frequency study of the Ap star HD 12447
6. Project Code : 37_034
7. Operator(s) : Pramod, Sachin
8. Command File : /odisk/gtac/cmd/37_034/3_jan/obs.cmd
9. LTA File : /gsbifrdata1/03jan/37_034_03jan2020_gsb.lta, /gwbifrdata1/03jan/37_034_03jan2020_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
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 : 8.053 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): 03 Jan 2020 17:00:00 - 04 Jan 2020 01:02:00

35. ONLINE Machine : Shivneri

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

37. RFI Status :

38. Comments (During Observations) :

------------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  	: 4096
GPU_CHAN_NUM  	: 0:4095:1
GPU_STOKES  	: Total_Intensity
GPU_SIDEBAND  	: 1 1
GPU_RF4  	: 550  550
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: -1 -1
GCODE4  	: 37_034
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  	: 8
GPU_GAINEQ  	: OFF
GPU_TPA  	: From GWB GUI.
GPU_BITS  	: 4 Bits
GPU_FILRFI  	: RFI Filterring OFF
GPU_BEAM_S  	: OFF
--------------------------------
16:35 : Started scan on 3C48.
16:42 : Stopped scan and started command file.
 '/odisk/gtac/cmd/37_034/3_jan/obs.cmd'
23:44 : C12 applied brakes.
00:43 : Stopped command file after taking phase cal.
00:45:14 : Started scan on 3C147 for ~ 15.3008 min.
01:01 : Closed observation session.