GTAC Observation Log

1. Date : 02/08/2020
2. Observation Sr. No. : 12256
3. Observer : Poonam Chandra, Ayan Biswas, Barnali Das
4. Observer\'s Email : poonam@ncra.tifr.res.in, ayan.scc2@gmail.com, barnali@ncra.tifr.res.in
5. Project Name : Uncovering the intriguing nature of the double O-O binary system Plaskett`s star
6. Project Code : 38_102
7. Operator(s) : Deepak, Rupsing
8. Command File : /odisk/gtac/cmd/poonam/02aug.cmd
9. LTA File : /gsbifrdata/02aug/38_102_02aug2020_band4_s4_gsb.lta, /gsbifrdata1/02aug/38_102_02aug2020_band5_s3_gsb.lta, /gwbifrdata1/02aug/38_102_02aug2020_band4_s4_gwb.lta, /gwbifrdata2/02aug/38_102_02aug2020_band5_s3_gwb.lta
10. LogFlag File : /odisk/online1/logflags/PNTG.FLAGS.3632

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1409 MHz ,RF2 : 1409 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1460 MHz, ILO2 : 1460MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 32 MHz,ON, IF-CH2 : 4+12 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) : 1409 1409 1460 1460 51 51
30. Integration Time : 4.0265 Sec
31. No of Antennas Working(Fringing) at the beginning :26

32. Name of Non-Working Antennas (with reason for each) :
C03 : Mechanical Work
C04 : Feed problem.
C05 : ABC time.
W04 : MCM 14 time out.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 02 Aug 2020 08:00:00 - 02 Aug 2020 13:00:00

35. ONLINE Machine : Shivneri

36. No of Antennas Working(Fringing) at the end :26

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  	: 2048
GPU_CHAN_NUM  	: 0:2047:1
GPU_STOKES  	: Full_Stokes
GPU_SIDEBAND  	: 1 1
GPU_RF3  	: 1460  1460
GPU_DDCLO3  	: 0.0000  0.0000
GPU_SB3  	: 1 1
GCODE3  	: 38_102B
GPU_RF4  	: 550  550
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: -1 -1
GCODE4  	: 38_102
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  	: 32
GPU_GAINEQ  	: OFF
GPU_TPA  	: From GWB GUI.
GPU_BITS  	: 4 Bits
GPU_FILRFI  	: RFI Filterring OFF
GPU_BEAM_S  	: OFF
-------------------------------------------------------------------------
# Sub 4 # Band4 : C01 C04 C05 C08 C10 C11 C13 W02 W04 W06 E02 E04 E06 S01 S03 S06
-------------------------------------------------------------------------
# Sub 3 # Band5 : C00 C02 C03 C06 C09 C12 C14 W01 W03 W05 E03 E05 S02 S04
-------------------------------------------------------------------------
08:25 : Setup done.
-------------------------------------------------------------------------
08:30 : GSB not working in full polar mode.
-------------------------------------------------------------------------
08:35 : GSB restarted in total intensity
-------------------------------------------------------------------------
08:37 : Started scan on 3C48.
08:47 : Stopped scan and started command file.
12:58 : Stopped command file
13:01 : Started scan on 3C147.
13:10 : Stopped scan and observation closed.