GTAC Observation Log 1. Date : 26/09/2021 2. Observation Sr. No. : 13543 3. Observer : Nayana AJ, G.C. Anupama, Nirupam Roy, Sonith L.S, KP Singh, Dipankar Banerjee 4. Observer\'s Email : nayan89deva@gmail.com, gca@iiap.res.in, roy.nirupam@gmail.com, sonith.ls@iiap.res.in, kulinderpal@gmail.com, orion@prl.res.in 5. Project Name : uGMRT follow-up observations of the recurrent nova RS Ophiuchi in its outburst 6. Project Code : ddtC207 7. Operator(s) : Shriram 8. Command File : /data1/gtac/cmd/ddtc207/obs_26sep.py 9. LTA File : /gsbifrdata/26sep/ddtc207_26sep2021_gsb.lta, /gwbifrdata/26sep/ddtc207_26sep2021_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/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) : 1399 1399 1450 1450 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) : C03 : Mechanical Work. E04 : Applied brakes. E05 : No fringe. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 26 Sep 2021 21:00:00 - 26 Sep 2021 22:35:00 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 : 4 GPU_ACQ_BW : 400.0000 GPU_FINAL_BW : 400 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1450 1450 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : DDTC207 GPU_CNTRL : ONLINE/TGC GPU_FSTOP : ON GPU_BEAM_1 : OFF 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 : 4 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF GPU_PFB : ON GPU_PFB_TAPS : 4 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_WALSH : OFF GPU_ENV : RELEASED -------------------------------- 21:00 : Started settings. 21:25 : Power equalized on 3C48. 21:28 : Started scan on 3C48 ~15 min. ------------------------------------------------------------------------ 21:35 : Noticed wrong TPA for GSB. Scan num.-0 is bad in GSB. Restarted scan for GSB using correct TPA. ------------------------------------------------------------------------ 21:44-21:52 : Slewing to phase calibrator. 21:52 : Started command file, \'/data1/gtac/cmd/ddtc207/obs_26sep.py\' 22:35 : Command file stopped and observation over. -------------------------------------------------------------------------