GTAC Observation Log

1. Date : 09/03/2019
2. Observation Sr. No. : 10947
3. Observer : Barnali Das

4. Observer's Email : barnali@ncra.tifr.res.in

5. Project Name : Eight hours of DDT time to observe the magnetic star HD 12447 in band 4 of the uGMRT\r\n
6. Project Code : DDTC047
7. Operator(s) : Deepak, Nilesh, Shilpa, Surender
8. Command File : /odisk/gtac/cmd/ddtc047/9_march/obs.cmd
9. LTA File : /gsbifrdata1/09mar/ddtc047_09mar2019_gsb.lta.1, /gsbifrdata1/09mar/ddtc047_09mar2019_gsb.lta, /gwbifrdata1/09mar/ddtc047_09mar2019_gwb.lta.2, /gwbifrdata1/09mar/ddtc047_09mar2019_gwb.lta.1, /gwbifrdata1/09mar/ddtc047_09mar2019_gwb.lta
10. LogFlag File : /odisk/online1/logflags/DDTC047.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_lenyadri
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 :27

32. Name of Non-Working Antennas (with reason for each) :
S02 : Painting.
C08 : Maintenance.
W01 : Strong RFI.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 09 Mar 2019 10:00:00 - 09 Mar 2019 19:19:00

35. ONLINE Machine : Lenyadri

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

37. 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  	: 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  	: DDTC047
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  	: 4 Bits
GPU_FILRFI  	: RFI Filterring OFF
GPU_BEAM_S  	: OFF
--------------------------------
10:00 : Started settings.
10:18 : Started scan on 3C48 for ~ 15.7035 min.

10:47 : '/odisk/gtac/cmd/ddtc047/9_march/obs.cmd' command file started.
12:00 : ONLINE stopped automatically.

12:15 : Restarted ONLINE and restarted GSB.

12:40 : Restarted command file.
13:25 : GWB acq got killed automatically.

13:45 : Restarted GWB.

15:16 : Stopped command file.

15:27 : Started scan on 3C48 for 7 min.
15:27 : S02 started working.
15:31 : C08 started working.

15:39 : Restarted command file.

18:00 : Due to ONLINE and CORRELATOR problems, occurred in afternoon continuing observation upto 19:15 IST to overcome time-losses.

19:00 : Stopped command file.
19:06 : Started scan on 3C48.
19:19 : Stopped scan and observing session over.