GTAC Observation Log 1. Date : 27/12/2017 2. Observation Sr. No. : 9985 3. Observer : Poonam Chandra, Nayana AJ, Stephen Bradley Cenko, Dipankar Bhattacharya, Alessandra Corsi 4. Observer's Email : poonam@ncra.tifr.res.in, nayan89deva@gmail.com, brad.cenko@nasa.gov, dipankar@iucaa.in, corsi@gwu.edu 5. Project Name : Target of Opportunity observation for Gamma ray bursts at uGMRT frequencies 6. Project Code : 33_045 7. Operator(s) : Pramod 8. Command File : /odisk/gtac/cmd/poonam/33_045/11dec17/obs.cmd 9. LTA File : /gsbifrdata1/27dec/33_045_27dec2017.lta, /gwbifrdata2/27dec/33_045_27dec2017_gwb.lta 10. LogFlag File : /odisk/online1/logflags/33_045.FLAGS.8 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1505 MHz ,RF2 : 1505 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1454 MHz, ILO2 : 1454MHz , 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 : Full_Stokes 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) : 1505 1505 1454 1454 51 51 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :29 32. Name of Non-Working Antennas (with reason for each) : W06 : Servo maintenance. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 27 Dec 2017 02:00:00 - 27 Dec 2017 05:10:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :29 37. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 400.0000 GPU_FINAL_BW : 400.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Full_Stokes GPU_SIDEBAND : 1 1 GPU_RF4 : 1460 1460 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 33_045 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 : For 32 inputs GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- 00:40 :Started set up. 01:07 : Started scan on 3C147. 01:19 : Stopped scan and started command file. '/odisk/gtac/cmd/poonam/33_045/11dec17/obs.cmd' 03:00 : C13 175 pol low fringe. 04:40 : Stopped command file. 04:50 : Started scan on 3C286. 05:00 : Stopped scan and observation session is over.