GTAC Observation Log 1. Date : 25/06/2021 2. Observation Sr. No. : 13234 3. Observer : Rupak Roy, Nayana AJ, Poonam Chandra, Dipankar Bhattacharya 4. Observer\'s Email : rupakroy1980@gmail.com, nayan89deva@gmail.com, poonam@ncra.tifr.res.in, dipankar@iucaa.in 5. Project Name : Long-term uGMRT follow-up observations of the TDE flair AT2019azh 6. Project Code : 40_095 7. Operator(s) : Deepak, Sachin 8. Command File : /odisk/gtac/cmd/obs.py 9. LTA File : /gsbifrdata/25jun/40_095_25jun2021_lband_gsb_8s.lta, /gsbifrdata/25jun/40_095_25jun2021_band4_gsb_8s.lta, /gsbifrdata1/25jun/40_095_25jun2021_lband_gsb_16s.lta, /gsbifrdata1/25jun/40_095_25jun2021_band4_gsb_16s.lta, /gwbifrdata/25jun/40_095_25jun2021_lband_gwb_10s.lta, /gwbifrdata/25jun/40_095_25jun2021_band4_gwb_10s.lta, /gwbifrdata1/25jun/40_095_25jun2021_lband_gwb_21s.lta, /gwbifrdata1/25jun/40_095_25jun2021_band4_gwb_21s.lta 10. LogFlag File : ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1409 MHz ,RF2 : 1409 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1460 MHz, ILO2 : 1460MHz , 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/TGC 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) : 1409 1409 1460 1460 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. C04 : Feed problem. E03 : Callsheet problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 25 Jun 2021 10:00:00 - 25 Jun 2021 13:00:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :27 37. RFI Status : 38. Comments (During Observations) : 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 /* 1,2,4,8,16,32,64 As divisor of ACQ_BW, Val = 400 */ 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 = 540.000000 540.000000 /* 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 = 1200 1200 /* zeroth channel RF frequency for subarray. */ GPU_DDCLO2 = 0.000000 0.000000 /* are in respective values of GWB RF */ GPU_SB2 = 1 1 /* 1 : LSB (LO > RF) and -1 : USB (LO < RF) */ GCODE2 = SUBA2 /* GTAC CODE associated with given subarray. */ GPU_RF3 = 1460 1460 /* zeroth channel RF frequency for subarray. */ GPU_DDCLO3 = 0.000000 0.000000 /* are in respective values of GWB RF */ GPU_SB3 = 1 1 /* 1 : LSB (LO > RF) and -1 : USB (LO < RF) */ GCODE3 = SUBA3 /* GTAC CODE associated with given subarray. */ GPU_RF4 = 470 470 /* 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 = SUBA4 /* GTAC CODE associated with given subarray. */ GPU_RF5 = 1060 1060 /* zeroth channel RF frequency for subarray. */ GPU_DDCLO5 = 0.000000 0.000000 /* are in respective values of GWB RF */ GPU_SB5 = 1 1 /* 1 : LSB (LO > RF) and -1 : USB (LO < RF) */ GCODE5 = SUBA5 /* GTAC CODE associated with given subarray. */ GPU_CNTRL = 1 /* 0 -LOCAL, 1 -ONLINE/TGC, 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 = 8 /* BEAM INTEGRATION (No. OF FFT CYCLES) i.e. 128 */ GPU_GAINEQ = 1 /* 1 - ON, 0 - OFF */ GPU_TPA = 0 /* 0 - From online/TGC tpa, 1 - From GWB GUI. */ GPU_BITS = 4 /* 4 - 4 Bits , 8 - 8 Bits */ GPU_FILRFI = 1 /* 0 - RFI Filterring OFF, 1 - Voltage Detection, 2 - Power Detection */ GPU_BEAM_S = 0 /* 1 - ON, 0 - OFF */ GPU_PFB = 0 /* 1 - ON, 0 - OFF */ GPU_PFB_TAPS= 4 /* PFB TAPS can be 2 or in the powers of 2 */ GPU_BEAM_BIT= 16 /* IA/PA beam output bits 16 or 8 */ GPU_VLT_BIT = 8 /* Voltage beam bits 8 or 4 */ GPU_ENV = 1 /* 0 - TRIAL , 1 - RELEASED */ ------------------------------------------------------------------------ 10:00:13 : Started scan on 3C147 for ~ 9.9321 min. 10:14:06 : Started scan on 0738+177 for ~ 5.3687 min. 10:21:28 : Started scan on AT2019azh for ~ 36.2388 min. 10:59:29 : Started scan on 0738+177 for ~ 5.3687 min. 11:06:29 : Started scan on AT2019azh for ~ 36.2388 min. 11:44:35 : Started scan on 0738+177 for ~ 5.3687 min. 11:51:36 : Started scan on AT2019azh for ~ 36.5072 min. 12:29:40 : Started scan on 0738+177 for ~ 5.3687 min. 12:42:15 : Started scan on 3C147 for ~ 16.3745 min. 13:00 : Closed observation session.