GTAC Observation Log 1. Date : 10/03/2019 2. Observation Sr. No. : 10949 3. Observer : Kuntal Misra, Martin Blazek, Michael Bremer, Luca Izzo, David Alexander Kann, Resmi Lekshmi, Michal Jerzy Michalowski, Daniel Perley, Ruben Sanchez Ramirez, Steve Schulze, Christina Thoene, Antonio deUgartePostigo 4. Observer's Email : kuntal@aries.res.in, alf@iaa.es, bremer@iram.fr, luca.izzo@gmail.com, kann@iaa.es, l.resmi@gmail.com, mj.michalowski@gmail.com, d.a.perley@ljmu.ac.uk, ruben@sramirez.es, steve.schulze@weizmann.ac.il, cthoene@iaa.es, adeugartepostigo@gmail.com 5. Project Name : Continued monitoring of the brightest radio afterglow detected by GMRT 6. Project Code : 35_044 7. Operator(s) : Sachin 8. Command File : /odisk/gtac/cmd/35_044/10mar/obs.cmd 9. LTA File : /gsbifrdata1/09mar/35_044_09mar2019_gsb.lta, /gwbifrdata2/09mar/35_044_09mar2019_gwb.lta, /gsbifrdata1/10mar/35_044_10mar2019_gsb.lta, /gwbifrdata2/10mar/35_044_10mar2019_gwb.lta 10. LogFlag File : /odisk/online1/logflags/35_044.FLAGS.4 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 :30 32. Name of Non-Working Antennas (with reason for each) : 33. Note for Backup : 34. Start and End Time of Obs.(IST): 10 Mar 2019 00:00:00 - 10 Mar 2019 01:15:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :30 37. Comments (During Observations) : { Corrsel.def GPU_MODE = 0 /* 0 - Realtime, 1 - RawDump */ GPU_LTA = 4 /* LTA values can be : 1,2,4,8,16,32 etc. */ GPU_ACQ_BW = 400.0000 /* 100 MHz, 200 MHz, and 400 MHz etc. */ GPU_FINAL_BW= 1.0 /* 1,2,4,8,16,32,64 As divisor of ACQ_BW, Val = 400.0000 */ GPU_EDGE_FRQ= 0.000000 /* Freq Entry in steps of Nyq, Val = 0 */ GPU_CHAN_MAX= 2048 /* 1024, 2048, 4096, 8192 and 16384. */ GPU_CHAN_NUM= 0:2047:1 /* any range i:j:1;for i,j RF) and -1 : USB (LO < RF) */ GPU_RF1 = 1460 1460 /* zeroth channel RF frequency for subarray. */ GPU_DDCLO1 = 0.0000 0.0000 /* are in respective values of GWB RF */ GPU_SB1 = 1 1 /* 1 : LSB (LO > RF) and -1 : USB (LO < RF) */ GCODE1 = SUBA1 /* GTAC CODE associated with given subarray. */ GPU_RF2 = 1460 1460 /* zeroth channel RF frequency for subarray. */ GPU_DDCLO2 = 0.0000 0.0000 /* are in respective values of GWB RF */ GPU_SB2 = 1 1 /* 1 : LSB (LO > RF) and -1 : USB (LO < RF) */ GCODE2 = 33_076B /* GTAC CODE associated with given subarray. */ GPU_RF3 = 1460 1460 /* zeroth channel RF frequency for subarray. */ GPU_DDCLO3 = 0.0000 0.0000 /* are in respective values of GWB RF */ GPU_SB3 = 1 1 /* 1 : LSB (LO > RF) and -1 : USB (LO < RF) */ GCODE3 = 33_076C /* GTAC CODE associated with given subarray. */ GPU_RF4 = 1460 1460 /* zeroth channel RF frequency for subarray. */ GPU_DDCLO4 = 0.0000 0.0000 /* are in respective values of GWB RF */ GPU_SB4 = 1 1 /* 1 : LSB (LO > RF) and -1 : USB (LO < RF) */ GCODE4 = 35_044 /* GTAC CODE associated with given subarray. */ GPU_RF5 = 0 0 /* zeroth channel RF frequency for subarray. */ GPU_DDCLO5 = 0.0000 0.0000 /* are in respective values of GWB RF */ GPU_SB5 = 1 1 /* 1 : LSB (LO > RF) and -1 : USB (LO < RF) */ GCODE5 = GPU5 /* GTAC CODE associated with given subarray. */ GPU_CNTRL = 1 /* 0 -LOCAL, 1 -ONLINE, 2 -MANUAL */ GPU_FSTOP = 1 /* 1 - ON, 0 - OFF */ GPU_BEAM_1 = 0:1 /* 0-OFF,1-IA,2-PA,3-Voltage */ GPU_BEAM_2 = 0:1 /* 0-OFF,1-IA,2-PA,3-Voltage */ GPU_BEAM_3 = 0:1 /* 0-OFF,1-IA,2-PA,3-Voltage */ GPU_BEAM_4 = 0:1 /* 0-OFF,1-IA,2-PA,3-Voltage */ GPU_BM_INT = 128 /* BEAM INTEGRATION (No. OF FFT CYCLES) i.e. 128 GPU_GAINEQ = 0 /* 1 - ON, 0 - OFF */ GPU_TPA = 1 /* 0 - From online tpa, 1 - From GWB GUI. */ GPU_BITS = 4 /* 4 - 4 Bits , 8 - 8 Bits */ GPU_FILRFI = 0 /* 0 - RFI Filterring OFF, 1 - Voltage Detection, 2 - Power Detection */ GPU_BEAM_S = 0 /* 1 - ON, 0 - OFF */ }Corrsel 00:06:33 : Started scan on 3C286 for ~ 8.85836 min. 00:19:42 : Started scan on 1130-148 for ~ 4.96605 min. 00:25:50 : Started scan on GRB171205A for ~ 9.9321 min. 00:36:38 : Started scan on 1130-148 for ~ 4.96605 min. 00:42:33 : Started scan on GRB171205A for ~ 9.9321 min. 00:53:31 : Started scan on 1130-148 for ~ 4.96605 min. 00:59:17 : Started scan on GRB171205A for ~ 8.05306 min. 01:13:58 : Started scan on 3C286 for ~ 11.5427 min. 01:15 : Closed observation session.