GTAC Observation Log 1. Date : 04/11/2019 2. Observation Sr. No. : 11560 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) : Nilesh 8. Command File : /odisk/gtac/cmd 9. LTA File : /gsbifrdata/04nov/37_053_04nov2019_band4_gsb.lta, /gsbifrdata/04nov/37_053_04nov2019_band3_gsb.lta, /gwbifrdata1/04nov/37_053_band4_04nov2019_gwb.lta, /gwbifrdata1/04nov/37_053_band3_04nov2019_gwb.lta 10. LogFlag File : 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 15. GSB Mode : Realtime 16. GSB LTA : 8 17. GSB CTRL : ONLINE 18. GSB Fstop : ON 19. GAIN EQ : OFF 20. Stokes : Total_Intensity 21. Beam - 1 : PA 22. Beam - 2 : PA 23. ACQ BW : 33.333333 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 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 :27 32. Name of Non-Working Antennas (with reason for each) : C04 : : Mechanical work. W02 : : FEED Jam. W03 : : No Fringe. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 04 Nov 2019 19:00:00 - 04 Nov 2019 21:00:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :27 37. RFI Status : 38. Comments (During Observations) : 18:30 : Started settings. ------------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 : 37_053B 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 : PA GPU_BEAM_4 : OFF 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 -------------------------------- # GSB GAC configuration is as follows : # BEAM-1:130 :: C01 C02 C05 C08 C10 C11 E02 S01 W01 Total=9 # BEAM-1:175 :: C01 C02 C05 C08 C10 C11 E02 S01 W01 Total=9 # BEAM-2:130 :: C00 C03 C06 C12 C13 C14 E03 E04 E05 S02 S03 S04 W03 W04 W05 Total=15 # BEAM-2:175 :: C00 C03 C06 C12 C13 C14 E03 E04 E05 S02 S03 S04 W03 W04 W05 Total=15 # GWB GAC configuration is as follows : # BEAM-1:130 :: C01 C02 C05 C08 C10 C11 E02 S01 W01 Total=9 # BEAM-1:175 :: C01 C02 C05 C08 C10 C11 E02 S01 W01 Total=9 # BEAM-3:130 :: C00 C03 C06 C12 C13 C14 E03 E04 E05 S02 S03 S04 W03 W04 W05 Total=15 # BEAM-3:175 :: C00 C03 C06 C12 C13 C14 E04 E05 S02 S03 S04 W03 W04 W05 Total=14 19:00:31 : Started scan on 2225-049 for ~ 3.4561 min. 19:04:51 : Started scan on 2225-049 for ~ 10.5696 min. 19:16:16 : Started scan on 2225-049 for ~ 6.07335 min. 19:27:22 : Started scan on 2225-049 for ~ 10.167 min. 19:38:20 : Started scan on 2225-049 for ~ 33.2189 min. Here, Antennas were tracking to pulsar J2144-5237, but I forgot to set the phase centre as J2144-5237, hence correlator taken phase centre as 2225-049. 20:22:35 : Started scan on 2225-049 for ~ 1.9126 min. 20:26:00 : Started scan on 3C48 for ~ 3.48966 min. 20:30:23 : Started scan on 3C48 for ~ 4.02653 min. 20:35:11 : Started scan on 3C48 for ~ 4.29496 min. 20:40:13 : Started scan on 3C48 for ~ 1.61061 min. Phasing repeated for 3 iterations as some antennas were not phasing properly and took more than 30 mins for the same. 20:44:47 : Started scan on J0248+4230 for ~ 20.8381 min. 21:10 : Stopped scan and observations closed.