GTAC Observation Log 1. Date : 29/06/2018 2. Observation Sr. No. : 10377 3. Observer : Mooley, Kishalay De, Poonam Chandra, Varun Bhalerao, Gregg Hallinan, Mansi M Kasliwal 4. Observer's Email : kmooley@caltech.edu, kde@caltech.edu, poonam@ncra.tifr.res.in, varunb@iitb.ac.in, gh@astro.caltech.edu, mansi@astro.caltech.edu 5. Project Name : Low frequency radio monitoring of GW170817 with uGMRT 6. Project Code : 34_101 7. Operator(s) : Navnath, Nilesh 8. Command File : /odisk/gtac/cmd/34_101/29jun18/obs.cmd 9. LTA File : /gsbifrdata1/29jun/34_101_29jun2018.lta, /gwbifrdata1/29jun/34_101_29jun2018_gwb.lta 10. LogFlag File : /odisk/online1/logflags/TST1884.FLAGS ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540MHz , 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) : 591 591 540 540 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) : W06 : Servo 33. Note for Backup : 34. Start and End Time of Obs.(IST): 29 Jun 2018 15:00:00 - 29 Jun 2018 18:00:00 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 : 4096 GPU_CHAN_NUM : 0:4095:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : -1 -1 GCODE4 : 34_101 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 : 8 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : For 32 inputs GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : ON -------------------------------- 15:00 : Started setup. 15:10 :ALL ANTENNAS WERE PARKED DUE HIGH WIND. 15:50 : Wind speed normal. 15:55 : Started cmd file. /odisk/gtac/cmd/34_101/29jun18/obs.cmd 17:33 : Started scan on source. 17:57 : scan stopped. 17:57:50 : Started scan on phase cal. 18:00 : observation session over.