GTAC Observation Log

1. Date : 02/01/2021
2. Observation Sr. No. : 12754
3. Observer : Ayan Biswas, Poonam Chandra
4. Observer\'s Email : ayan.scc2@gmail.com, poonam@ncra.tifr.res.in
5. Project Name : Epsilon Lupi- Looking Into the Unique Doubly-magnetic  Massive Binary System
6. Project Code : 39_086
7. Operator(s) : Pramod
8. Command File : /data1/gtac/cmd/39_086/39_086_02jan21.py
9. LTA File : /gsbifrdata/02jan/39_086_band4_02jan2021.lta, /gsbifrdata/02jan/39_086_band4_02jan2021.lta, /gsbifrdata1/02jan/39_086_band5_02jan2021.lta, /gsbifrdata1/02jan/39_086_band5_02jan2021.lta, /gwbifrdata1/02jan/39_086_band4_02jan2021_gwb.lta, /gwbifrdata1/02jan/39_086_band4_02jan2021_gwb.lta, /gwbifrdata2/02jan/39_086_band5_02jan2021_gwb.lta, /gwbifrdata2/02jan/39_086_band5_02jan2021_gwb.lta
10. LogFlag File : /odisk/online1/logflags/PNTG.FLAGS.3823

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 : 4.0265 Sec
31. No of Antennas Working(Fringing) at the beginning :27

32. Name of Non-Working Antennas (with reason for each) :
C03 : Mechanical Work.
S01 : 175 pol low fringe
W03 : Taken for mechanical work


33. Note for Backup :

34. Start and End Time of Obs.(IST): 02 Jan 2021 07:00:00 - 02 Jan 2021 11:00:00

35. ONLINE Machine : TGC

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

37. RFI Status :

38. Comments (During Observations) :
GPU_PFB,0
GPU_PFB_TAPS,16
GPU_CHAN_NUM,0:2047:1
GPU_BEAM_S,0
GPU_EDGE_FRQ,0
GPU_BEAM_3,0:1
GPU_BEAM_2,0:1
GPU_BEAM_1,0:1
GPU_BEAM_4,0:1
GPU_FINAL_BW,1
GPU_VLT_BIT,8
GPU_FSTOP,1
GPU_FILRFI,0
GPU_BM_INT,8
GPU_DDC,0
GPU_CNTRL,1
GPU_GAINEQ,1
GPU_LTA,4
GPU_CHAN_MAX,2048
GPU_ENV,1
GPU_HOSTS,2
GPU_MODE,0
GPU_STOKES,4
GPU_TPA,0
GPU_ACQ_BW,400.0000
GPU_BEAM_BIT,16
GPU_BEAM4_DATASERVER,gwbh10
GPU_BEAM1_DATASERVER,gwbh7
GPU_IFR_DATASERVER,gwbh6
GPU_BEAM2_DATASERVER,gwbh8
GPU_BEAM3_DATASERVER,gwbh9


# Band 4 # sub 3 # C01 C03 C05 C08 C10 C12 C14 W02 W04 W06 E03 E05 S01 S03 S06
ante 15 6 1 19 24 12 2 10 13 15 25 18 22 26 28 30
cp 0;defs 3;subar 3

# Band 5 # sub 4 # C00 C02 C04 C06 C09 C11 C13 W01 W03 W05 E02 E04 E06 S02 S04
ante 15 7 5 3 20 4 9 11 8 14 16 17 21 23 27 29
cp 0;defs 4;subar 4


07:00 : Started set up.
07:00 to 07:15 : Rotated feed to Band4. W04 and C14 were not rotated. Hence rotated to Band4.
07:15 to 07:30 : Taken control from online to tgc.
07:30 to 08:05 : Set up done from TGC and Started correlator in full polar mode.
08:05 to 08:12 : Power equalized on 3C286.
08:12 : Started scan on 3C286.
08:21 : Stopped scan and started command file.
\'/data1/gtac/cmd/39_086/39_086_02jan21.py\'
09:39 : E02 Taken for mechanical work.
11:00 : Stopped command file and observation session is over.