GTAC Observation Log 1. Date : 24/01/2020 2. Observation Sr. No. : 11828 3. Observer : Jayanta Roy, Bhaswati Bhattacharyya, Lina Levin, Ben Stappers, Paul Ray 4. Observer\'s Email : jroy@ncra.tifr.res.in, bhaswati.bhattacharyya78@gmail.com, lina.s.levin@gmail.com, Ben.Stappers@manchester.ac.uk, paul.ray@nrl.navy.mil 5. Project Name : Multi-frequency timing of millisecond pulsars discovered with the GMRT 6. Project Code : 37_053 7. Operator(s) : Navnath, Pramod 8. Command File : /odisk/gtac/cmd/jroy/37_053_24jan.cmd 9. LTA File : /gwbifrdata/24jan/37_053_24jan2020_band4_gwb.lta.1, /gwbifrdata/24jan/37_053_24jan2020_band4_gwb.lta, /gwbifrdata/24jan/37_053_24jan2020_band3_gwb.lta.1, /gwbifrdata/24jan/37_053_24jan2020_band3_gwb.lta 10. LogFlag File : /odisk/online1/logflags/37_053B.FLAGS.9, /odisk/online1/logflags/37_053A.FLAGS.9 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 :28 32. Name of Non-Working Antennas (with reason for each) : C00 : : GAB chksum error. W04 : : MCM-14 Time out. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 24 Jan 2020 03:00:00 - 24 Jan 2020 08:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :28 37. RFI Status : 38. Comments (During Observations) : 03:00 : Started setup. # GWB GAC configuration is as follows : # BEAM-1:130 :: C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=21 # BEAM-1:175 :: C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=21 # BEAM-2:130 :: Total=0 # BEAM-2:175 :: Total=0 # BEAM-3:130 :: Total=0 # BEAM-3:175 :: Total=0 # BEAM-4:130 :: C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=21 # BEAM-4:175 :: C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=21 ------------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 : 4096 GPU_CHAN_NUM : 0:4095:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF3 : 500 500 GPU_DDCLO3 : 0.0000 0.0000 GPU_SB3 : 1 1 GCODE3 : TESTB GPU_RF4 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : -1 -1 GCODE4 : 37_053A GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : Voltage GPU_BEAM_2 : OFF GPU_BEAM_3 : OFF GPU_BEAM_4 : PA GPU_BM_INT : 4 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- 03:40:01 : Started scan on 1154-350 for ~ 1.52113 min. 03:42:09 : Started scan on 1154-350 for ~ 2.90805 min. 03:45:11 : Started scan on 1154-350 for ~ 2.55013 min. 03:50:26 : Started scan on J1120-3618 for ~ 70.6432 min. 05:04:01 : Started scan on 1526-138 for ~ 0.760566 min. 05:05:00 : Started scan on 1526-138 for ~ 1.029 min. 05:07:30 : Started scan on J1646-2142 for ~ 60.6664 min. 06:00:00 : acq got killed restarted das chain. 06:20 : phasing done manually. C13 removed from GAC. : Restarted cmd file. 08:00 : Stopped command file and observation session is over.