GTAC Observation Log 1. Date : 04/11/2018 2. Observation Sr. No. : 10624 3. Observer : Nayana AJ, Poonam Chandra, Varun Bhalerao, Rupak Roy 4. Observer's Email : nayan89deva@gmail.com, poonam@ncra.tifr.res.in, varunb@iitb.ac.in, rupakroy1980@gmail.com 5. Project Name : uGMRT observations of a fast rising broad-line Type Ic supernova - AT 2018COW 6. Project Code : 35_067 7. Operator(s) : Pramod, Surender 8. Command File : /odisk/gtac/cmd/nayana/35_067/04nov/obs.txt 9. LTA File : /gsbifrdata1/04nov/35_067_04nov2018.lta, /gwbifrdata2/04nov/35_067_04nov2018_gwb.lta 10. LogFlag File : /odisk/online1/logflags/35_067.FLAGS.3 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 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 : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :29 32. Name of Non-Working Antennas (with reason for each) : C01 : : Taken for Painting. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 04 Nov 2018 14:00:00 - 04 Nov 2018 18:10:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :30 37. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200.0000 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 : 35_067 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 : 128 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- 14:00:00 : Started set-up. 14:19:31 : Started scan on 3C286 for ~ 16.3745 min. 14:39:14 : Started command file. /odisk/gtac/cmd/nayana/35_067/04nov/obs.txt 17:43 : C01 started working. 17:52 : Electrical power failure to all antennas and hence stop command file. 18:00 : Observation session is over.