GTAC Observation Log 1. Date : 06/02/2018 2. Observation Sr. No. : 10075 3. Observer : Bhaswati Bhattacharyya 4. Observer's Email : bhaswati@ncra.tifr.res.in 5. Project Name : Study of eclipsing black widow pulsar J1544\\+4937 6. Project Code : 33_084 7. Operator(s) : Navnath, Surender 8. Command File : /odisk/gtac/cmd/jroy/33_084_6feb.cmd 9. LTA File : /gsbifrdata1/06feb/33_084_06feb2018.lta, /gsbifrdata1/06feb/33_084A_06feb2018.lta, /gwbifrdata/06feb/33_084_06feb2018_band4.lta 10. LogFlag File : /odisk/online1/logflags/33_084A.FLAGS, /odisk/online1/logflags/33_084.FLAGS ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 255 MHz, ILO2 : 255MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 32 MHz,OFF, IF-CH2 : 4+14 dB, 32 MHz,OFF 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) : 306 306 255 255 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) : W06 : : Low self in GWB to 175 pol. S04 : : Feed jammed. E04 : 175 pol no fringe in Both (GSB & GWB) 33. Note for Backup : 34. Start and End Time of Obs.(IST): 06 Feb 2018 03:00:00 - 06 Feb 2018 09:20:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :27 37. Comments (During Observations) : 03:00 : Started set-up. # GSB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C04 C05 C11 C14 W01 Total=8 # BEAM-1:175 :: C00 C01 C02 C04 C05 C11 C14 W01 Total=8 # BEAM-2:130 :: C03 C06 C08 C09 C10 C13 E02 E03 E05 S01 S02 S03 W02 W03 W04 W05 Total=16 # BEAM-2:175 :: C03 C06 C08 C09 C10 C13 E02 E03 E05 S01 S02 S03 W02 W03 W04 W05 Total=16 # GWB GAC configuration is as follows : # BEAM-3:130 :: C00 C01 C02 C04 C05 C11 C12 C14 W01 Total=9 # BEAM-3:175 :: C00 C01 C02 C04 C05 C11 C12 C14 W01 Total=9 # BEAM-4:130 :: C03 C06 C08 C09 C10 C13 E02 E03 E05 S01 S02 S03 W02 W03 W04 W05 Total=16 # BEAM-4:175 :: C03 C06 C08 C09 C10 C13 E02 E03 E05 S01 S02 S03 W02 W03 W04 W05 Total=16 observer@lenyadri:/odisk/online1/INFO 62> ------------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_RF2 : 500 500 GPU_DDCLO2 : 0.0000 0.0000 GPU_SB2 : 1 1 GCODE2 : 33_084A GPU_RF4 : 850 850 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 33_084 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : OFF GPU_BEAM_2 : OFF GPU_BEAM_3 : PA GPU_BEAM_4 : PA GPU_BM_INT : 4 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 64 inputs. GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- ----------------------------------------------------------------------- 03:24:00 : Started scan on 1459+716 for ~ 8.52282 min. 03:33:35 : Started scan on 1459+716 for ~ 2.11393 min. 03:40:55 : Started command file. /odisk/gtac/cmd/jroy/33_084_6feb.cmd 09:20:00 : observation session over =================================================