GTAC Observation Log 1. Date : 18/03/2018 2. Observation Sr. No. : 10161 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) : Rupsing 8. Command File : /odisk/gtac/cmd/jroy/33_084_17mar.cmd 9. LTA File : /gsbifrdata/17mar/33_084_17mar2018_gsb.lta, /gwbifrdata2/17mar/33_084_17mar2018_gwb.lta 10. LogFlag File : /odisk/online1/logflags/33_084.FLAGS.2 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1454 MHz ,RF2 : 1454 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1505 MHz, ILO2 : 1505MHz , 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 : 20+10 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 : IA 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) : 1454 1454 1505 1505 51 51 30. Integration Time : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :29 32. Name of Non-Working Antennas (with reason for each) : C04 : No fringe 33. Note for Backup : 34. Start and End Time of Obs.(IST): 17 Mar 2018 23:00:00 - 18 Mar 2018 02:05:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :29 37. Comments (During Observations) : ------------GWB Setting--------------------------------------------------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 400.0000 GPU_FINAL_BW : 400.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1460 1460 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 : IA GPU_BEAM_4 : PA GPU_BM_INT : 8 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : For 32 inputs GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------------------------------------------------- # GWB GAC configuration is as follows : # BEAM-3:130 :: C00 C02 C03 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E04 E05 S01 S02 S03 S04 W01 W02 W03 W04 W05 Total=24 # BEAM-3:175 :: C00 C01 C02 C03 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E04 E05 S01 S02 S03 S04 W01 W02 W03 W04 W05 Total=25 # BEAM-4:130 :: C00 C02 C03 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E04 E05 S01 S02 S03 S04 W01 W02 W03 W04 W05 Total=24 # BEAM-4:175 :: C00 C01 C02 C03 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E04 E05 S01 S02 S03 S04 W01 W02 W03 W04 W05 Total=25 -------------------------------------------------------------------------- 23:00 : Setup done. 23:20 : Power eq. done 23:30 : Phasing done. 23:40 : Started command file. 02:00 : Stopped command file and observation session over.