GTAC Observation Log

1. Date : 30/11/2020
2. Observation Sr. No. : 12620
3. Observer : Poonam Chandra, Ayan Biswas, Sonalika Purkayastha, Nayana AJ, Roger Chevalier, Keiichi Maeda, Peter Brown, Alak Ray
4. Observer\'s Email : poonam@ncra.tifr.res.in, ayan.scc2@gmail.com, spurkayastha@ncra.tifr.res.in, nayan89deva@gmail.com, rac5x@virginia.edu, keiichi.maeda@kusastro.kyoto-u.ac.jp, grbpeter@yahoo.com, akr@tifr.res.in
5. Project Name : Understanding young supernovae interacting with their progenitor winds with the aid of low frequency observations
6. Project Code : 39_078
7. Operator(s) : Pramod
8. Command File : /data1/gtac/cmd/poonam/39_078/39_078_30nov20.py
9. LTA File : /gsbifrdata1/30nov/39_078_30nov2020_gsb.lta, /gwbifrdata1/30nov/39_078_30nov2020_gwb.lta
10. LogFlag File :  

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1399 MHz ,RF2 : 1399 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1450 MHz, ILO2 : 1450MHz , 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) : 1399 1399 1450 1450 51 51
30. Integration Time : 8.053 Sec
31. No of Antennas Working(Fringing) at the beginning :24

32. Name of Non-Working Antennas (with reason for each) :
C03 : Mechanical Work.
S03 ,S04,S06 : OFC cut
E06 : Feed jammed
C10 : FE disconnected

33. Note for Backup :

34. Start and End Time of Obs.(IST): 30 Nov 2020 07:00:00 - 30 Nov 2020 09:00:00

35. ONLINE Machine : TGC

36. No of Antennas Working(Fringing) at the end :24

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,2
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

07:00 to 07:25 : Set up done .
07:25 to 08:00 : AGN1 hung.After restarting agn1 problem solved.
08:00 to 08:15 : Started correlator and power equalized on 3C286.
08:17 : Started scan on 3C286 for ~ 8.58993 min.
08:33 : Started scan on 1120+143 for ~ 5.18975 min.
08:40 : Started scan on AT2020ywx for ~ 22.5486 min.
09:00 : Stopped scan and observation session is over.