GTAC Observation Log 1. Date : 15/08/2021 2. Observation Sr. No. : 13403 3. Observer : Maura Pilia, Matteo Trudu, Visweshwar Ram Marthi, Andrea Possenti, Marta Burgay, Vishal R Gajjar, Luca Zampieri, Filippo Ambrosino, Cristiano Guidorzi, Eliana Palazzi 4. Observer\'s Email : maura.pilia@inaf.it, trudumatteo@outlook.com, vrmarthi@ncra.tifr.res.in, possenti@oa-cagliari.inaf.it, burgay@oa-cagliari.inaf.it, vishalg@berkeley.edu, luca.zampieri@inaf.it, filippo.ambrosino@inaf.it, guidorzi@fe.infn.it, palazzi@iasfbo.inaf.it 5. Project Name : A multi-wavelength campaign to tackle the progenitor of FRB~20180916B 6. Project Code : ddtC195 7. Operator(s) : Nilesh, Shilpa, Shriram 8. Command File : /data1/gtac/cmd/ddtc195/ddtc195_15aug21.py 9. LTA File : /gwbifrdata1/15aug/ddtc195_15aug2021_gwb.lta, /gwbifrdata2/15aug/ddtc195_15aug2021_gwb.lta 10. LogFlag File : ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 255 MHz, ILO2 : 255MHz , 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/TGC 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) : 306 306 255 255 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. C13 : Very low fringe at 130 pol. W03 : No self power. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 15 Aug 2021 05:00:00 - 15 Aug 2021 10:00:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :27 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------------------------------------------------- GPU_MODE : Realtime GPU_LTA : 8 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 500 500 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : DDTC195 GPU_CNTRL : TGC GPU_FSTOP : ON GPU_BEAM_1 : VOLTAGE GPU_BEAM_2 : OFF GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 8 GPU_GAINEQ : ON GPU_TPA : From online/TGC tpa GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF GPU_PFB : OFF GPU_PFB_TAPS : 4 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_WALSH : OFF GPU_ENV : RELEASED -------------------------------------------------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W04 W05 W06 Total=27 # BEAM-1:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W04 W05 W06 Total=27 -------------------------------------------------------------------------- 05:00 : Started settings. 05:17 : Power equalized on 3C48 @ 120 counts. 05:19 : \'/data1/gtac/cmd/ddtc195/ddtc195_15aug21.py\' command file started. 05:30 : 3C48_OFF not tracked properly due to missing command in command file. 05:35 : Restarted command file. 09:55 : Noticed that command file got killed automatically around 09:05 IST. Thus, from 09:05 IST phase cal scan got continued. 10:00 : Stopped scan and observation closed.