GTAC Observation Log 1. Date : 19/10/2019 2. Observation Sr. No. : 11509 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, Rupsing 8. Command File : /data1/gtac/cmd/jroy/37_053_19oct.py 9. LTA File : /gsbifrdata/19oct/37_053_19oct2019_610_test.lta.1, /gsbifrdata/19oct/37_053_19oct2019_610_test.lta, /gwbifrdata/19oct/37_053_19oct2019_610_test.lta.1, /gwbifrdata/19oct/37_053_19oct2019_610_test.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 : 20+10 dB, 32 MHz,OFF, IF-CH2 : 18+10 dB, 32 MHz,OFF 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 : PA 22. Beam - 2 : PA 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 :24 32. Name of Non-Working Antennas (with reason for each) : C04 : Servo off C08 : No fringe. C11 : FE problem (No fringe both GSB and GWB). W02 : FE problem.(No fringe both GSB and GWB) C10 : FE problem.(No fringe both GSB and GWB) E02 : Low fringe. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 19 Oct 2019 10:00:00 - 19 Oct 2019 14:00:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :24 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 : 4096 GPU_CHAN_NUM : 0:4095:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : -1 -1 GCODE4 : 37_053 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 ----------------------------------------------------------------------- 10:00 : Started setup for both GSB and GWB using TGC : Multi Sub-arr-array pulsar observation 10:15 : Sub array splitting done. : Started RF,LO,IF,GAB,OF Attenuation settings. 10:30 : Setup done for both sub array(325+610) 10:45 : Started power eq for Both Sub array. : GSB power eq done both freq. : GWB power eq done at 120 counts. 11:10 : Power eq done on 1154-350 for both sub array 11:20 : Phasing done on 1154-350. 11:22 : Started command file. Started SCAN command manually giving thorough GUI. 12:08 : cmd file stopped.due to SUBA4 phase center was not matching. 12:23 : Restarted cmd file. /data1/gtac/cmd/jroy/test.py 12:48 : W04 removed from GAC. : Restarted SUBA4 Scans through GUI 13:15 : cmd file stopped. phasing failed. : stop prj cmds failed due to project associaton problem. 13:30 : Manually doing phasing on 1822-096. 13:40 : phasing failed showing no valid data. : deleted project for SUBA4 and Re-associated 14:00 : Observation session over. :::::::::::::: gsb_gac.dat :::::::::::::: # GSB GAC configuration is as follows : # BEAM-1:130 :: C01 C02 C03 C05 S01 S02 W01 Total=7 # BEAM-1:175 :: C01 C02 C03 C05 S01 S02 W01 Total=7 # BEAM-2:130 :: C00 C06 C09 C12 C13 C14 E03 E04 E05 E06 S03 S04 S06 W03 W05 W06 Total=16 # BEAM-2:175 :: C00 C06 C09 C12 C13 C14 E03 E04 E05 E06 S03 S04 S06 W03 W05 W06 Total=16 :::::::::::::: gwb_gac.dat :::::::::::::: # GWB GAC configuration is as follows : # BEAM-1:130 :: C01 C02 C03 C05 S01 S02 W01 Total=7 # BEAM-1:175 :: C01 C02 C03 C05 S01 S02 W01 Total=7 # BEAM-3:130 :: C00 C06 C09 C12 C13 C14 E03 E04 E05 E06 S03 S04 S06 W03 W05 W06 Total=16 # BEAM-3:175 :: C00 C06 C09 C12 C13 C14 E03 E04 E05 E06 S03 S04 S06 W03 W05 W06 Total=16 -------------------------------------------------------------------- Total approximate time for setup in multi subarry pulsar obs : 1h22min project association TGC problem for SUBA4: 40 minutes. --------------------------------------------------------------- -----------------------------------------------------------------------