GTAC Observation Log 1. Date : 15/02/2019 2. Observation Sr. No. : 10895 3. Observer : Kuntal Misra, Martin Blazek, Michael Bremer, Ankur Ghosh, Luca Izzo, David Alexander Kann, Resmi Lekshmi, Amitesh Omar, Ruben Sanchez Ramirez, Steve Schulze, Christina Thoene, Antonio deUgartePostigo 4. Observer's Email : kuntal@aries.res.in, alf@iaa.es, bremer@iram.fr, ankur@aries.res.in, luca.izzo@gmail.com, kann@iaa.es, l.resmi@gmail.com, aomar@aries.res.in, ruben@sramirez.es, steve.schulze@weizmann.ac.il, cthoene@iaa.es, adeugartepostigo@gmail.com 5. Project Name : Target of Opportunity Observations of Radio Afterglows of Long Gamma Ray Bursts 6. Project Code : 35_018 7. Operator(s) : Pramod, Surender 8. Command File : /odisk/gtac/cmd/35_065/15feb19/obs.cmd 9. LTA File : /gsbifrdata1/15feb/35_018_15feb2019_gsb.lta, /gwbifrdata2/15feb/35_018_15feb2019_gwb.lta 10. LogFlag File : /odisk/online1/logflags/35_065.FLAGS.15, /odisk/online1/logflags/35_065.FLAGS.14 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1454 MHz ,RF2 : 1454 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1505 MHz, ILO2 : 1505MHz , 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_lenyadri 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) : 1454 1454 1505 1505 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :28 32. Name of Non-Working Antennas (with reason for each) : C00 : : GAB problem. S02 : : FES problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 15 Feb 2019 18:00:00 - 15 Feb 2019 20:10:00 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 : 4096 GPU_CHAN_NUM : 0:4095:1 GPU_STOKES : Full_Stokes GPU_SIDEBAND : 1 1 GPU_RF4 : 1450 1450 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 35_065 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 : 32 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 4 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- 18:00 : Started set-up. 18:16 : Started scan on 3C48 for ~15mins. 18:30 : Started command file. 19:03 : C00 started working. '/odisk/gtac/cmd/35_065/15feb19/obs.cmd' 20:00 : Stopped command file and observation session is over.