GTAC Observation Log 1. Date : 05/09/2020 2. Observation Sr. No. : 12377 3. Observer : Tasha Gautam, Paulo Cesar Freire, Robert Wharton, Alessandro Ridolfi, Yashwant Gupta 4. Observer\'s Email : tgautam@mpifr-bonn.mpg.de, pfreire@mpifr-bonn.mpg.de, rsw95@cornell.edu, alessandro.ridolfi@inaf.it, ygupta@ncra.tifr.res.in 5. Project Name : A shallow survey of the Maveric Globular Clusters with uGMRT 6. Project Code : 38_085 7. Operator(s) : Navnath, Nilesh, Pramod, Surender 8. Command File : /odisk/gtac/cmd/38_085/4sep.cmd 9. LTA File : /gwbifrdata1/04sep/38_085_04sep2020_gwb.lta, /gwbifrdata1/04sep/38_085_04sep2020_band4_gwb.lta 10. LogFlag File : /odisk/online1/logflags/38_085.FLAGS.4, /odisk/online1/logflags/38_085.FLAGS.3, /odisk/online1/logflags/38_085.FLAGS.2, /odisk/online1/logflags/38_037.FLAGS.28 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 : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work E06 : ABC time out S02 : Taken for RFI S03 : Taken for mechanical work 33. Note for Backup : 34. Start and End Time of Obs.(IST): 04 Sep 2020 14:00:00 - 05 Sep 2020 01:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :27 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 1024 GPU_CHAN_NUM : 0:1023:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : -1 -1 GCODE4 : 38_085 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : IA GPU_BEAM_2 : PA GPU_BEAM_3 : Voltage GPU_BEAM_4 : IA GPU_BM_INT : 16 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 S01 S04 S06 W01 W02 W03 W04 W05 W06 Total=26 # BEAM-1:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 S01 S04 S06 W01 W02 W03 W04 W05 W06 Total=26 # BEAM-2:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 Total=13 # BEAM-2:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 Total=13 # BEAM-3:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 Total=13 # BEAM-3:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 Total=13 # BEAM-4:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 Total=13 # BEAM-4:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 Total=13 14:00 : Started set up. 14:25 : Power equalized and phasing done on 3C286. 14:32 : Started command file. \'/odisk/gtac/cmd/38_085/4sep.cmd\' 16:00 : online not sending antennas to next source. : cmd file stopped. : Debugging and resolving problem took about 1.5 hours. 17:35 : Restarted cmd file for next targets. \'/odisk/gtac/cmd/38_085/4sep.cmd\' : S02 and S03 relesed for observation. 17:35 : C14 : Low Fringe GWB, removed from GAC. 19:00 : S04 : Servo problem , removed from GAC. 01:00 : Stopped command file and observing session over. ----------------------------------------