GTAC Observation Log 1. Date : 24/03/2019 2. Observation Sr. No. : 10986 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_018/24mar19/obs_24mar19.cmd 9. LTA File : /gsbifrdata/24mar/35_018_24mar2019.lta, /gwbifrdata2/24mar/35_018_24mar2019_gwb.lta 10. LogFlag File : /odisk/online1/logflags/35_018.FLAGS.7 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_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) : 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) : C01 : : Servo Problem. S02 : : Taken for Mech Work. E05 : : FPS problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 24 Mar 2019 17:00:00 - 24 Mar 2019 20:20:00 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 : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1460 1460 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 35_018 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 -------------------------------- ----------------------------------------------------------------------- 17:07:48 : Started scan on 3C48 for 8 min. 17:15 : Stopped scan and started command file. '/odisk/gtac/cmd/35_018/24mar19/obs_24mar19.cmd' 19:00 : C01 and S02 started working. 19:58 : Stopped command file. 20:03 : Started scan on 3C147. 20:15 : Stopped scan and observation session is over.