GTAC Observation Log 1. Date : 18/08/2017 2. Observation Sr. No. : 9680 3. Observer : Elliott Polzin, Bhaswati Bhattacharyya, Rene Breton, Andrew Lyne, Mallory Roberts, Ben Stappers 4. Observer's Email : elliott.polzin@postgrad.manchester.ac.uk, bhaswati.bhattacharyya@manchester.ac.uk, rene.breton@manchester.ac.uk, andrew.lyne@manchester.ac.uk, malloryr@gmail.com, Ben.Stappers@manchester.ac.uk 5. Project Name : %latex% Determining the phenomena behind the flux variations of binary PSRs B1718$-$19 and J1744$-$3922 6. Project Code : 32_045 7. Operator(s) : Navnath, Rupsing, Shilpa 8. Command File : /odisk/gtac/cmd/jroy/32_045_17aug.cmd 9. LTA File : /gsbifrdata1/17aug/32_045_17aug2017_610.lta, /gsbifrdata1/17aug/32_045_17aug2017_1420.lta, /gwbifrdata2/17aug/32_045_17aug2017_550_USB.lta, /gwbifrdata2/17aug/32_045_17aug2017_1460_LSB.lta 10. LogFlag File : /odisk/online1/logflags/SUBA2.FLAGS.1073, /odisk/online1/logflags/PNTG.FLAGS.2458, /odisk/online1/logflags/32_045.FLAGS.4 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 : 24+4 dB, 32 MHz,OFF, IF-CH2 : 24+4 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) : 591 591 540 540 51 51 30. Integration Time : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : C01 : Servo problem. C05 : Servo problem. W01 : Servo problem. E05 : Feed jam. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 17 Aug 2017 18:00:00 - 18 Aug 2017 00:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :26 37. Comments (During Observations) : ------------GWB Setting---------------------------------------------------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200.0000 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_RF2 : 550 550 GPU_SB2 : -1 -1 GCODE2 : SUBA2 GPU_RF4 : 1460 1460 GPU_SB4 : 1 1 GCODE4 : 32_045 GPU_BEAM_1 : OFF GPU_BEAM_2 : OFF GPU_BEAM_3 : PA GPU_BEAM_4 : PA GPU_BM_INT : 16 GPU_GAINEQ : ON GPU_TPA : From GWB GUI. GPU_BITS : 64 inputs. GPU_FILRFI : RFI Filterring OFF --------------------------------------------------------------------------- # sub 2 # C02 C03 C05 C09 C10 C11 W01 W06 E02 S06 ante 10 5 1 19 4 12 9 8 25 17 30 cp 0;defs 2;subar 2 tpa 591 591 540 540 51 51 # sub 4 # C00 C01 C04 C06 C08 C12 C13 C14 W02 W03 W04 W05 E03 E04 E05 E06 S01 S02 S03 S04 ante 20 7 6 3 20 24 2 11 10 13 14 15 16 18 21 22 23 26 27 28 29 cp 0;defs 4;subar 4 tpa 1454 1454 1505 1505 51 51 --------------------------------------------------------------------------- # GSB GAC configuration is as follows : # BEAM-1:130 :: C02 C03 C09 C10 C11 E02 Total=6 # BEAM-1:175 :: C02 C03 C09 C10 C11 E02 Total=6 # BEAM-2:130 :: C00 C04 C06 C08 C12 C13 C14 E03 E04 E06 S01 S02 S03 S04 W02 W03 W04 W05 Total=18 # BEAM-2:175 :: C00 C04 C06 C08 C12 C13 C14 E03 E04 E06 S01 S02 S03 S04 W02 W03 W04 W05 Total=18 --------------------------------------------------------------------------- # GWB GAC configuration is as follows : # BEAM-3:130 :: C02 C03 C09 C10 C11 E02 Total=6 # BEAM-3:175 :: C02 C03 C09 C10 C11 E02 Total=6 # BEAM-4:130 :: C00 C04 C06 C08 C12 C13 C14 E03 E04 E06 S01 S02 S04 W02 W03 W04 W05 Total=17 # BEAM-4:175 :: C00 C04 C06 C08 C12 C13 C14 E03 E04 E06 S01 S02 S03 S04 W02 W03 W04 W05 Total=18 --------------------------------------------------------------------------- 18:00 : Started settings. 18:40 : Power equalized on 3C286 @ 300 counts at GSB and 150 counts at GWB. 19:05 : Power equalized on 1822-096 @ 300 counts at GSB and 150 counts at GWB. 19:16 : Phasing done on 1822-096. 19:19 : '/odisk/gtac/cmd/jroy/32_045_17aug.cmd' command file started. 20:56 : W01 started working, so added in GAC. --------------------------------------------------------------------------- # GSB GAC configuration is as follows : # BEAM-1:130 :: C02 C03 C09 C10 C11 E02 W01 Total=7 # BEAM-1:175 :: C02 C03 C09 C10 C11 E02 W01 Total=7 # BEAM-2:130 :: C00 C04 C06 C08 C12 C13 C14 E03 E04 E06 S01 S02 S03 S04 W02 W03 W04 W05 Total=18 # BEAM-2:175 :: C00 C04 C06 C08 C12 C13 C14 E03 E04 E06 S01 S02 S03 S04 W02 W03 W04 W05 Total=18 --------------------------------------------------------------------------- # GWB GAC configuration is as follows : # BEAM-3:130 :: C02 C03 C09 C10 C11 E02 Total=6 # BEAM-3:175 :: C02 C03 C09 C10 C11 E02 W01 Total=7 # BEAM-4:130 :: C00 C04 C06 C08 C12 C13 C14 E03 E04 E06 S01 S02 S04 W02 W03 W04 W05 Total=17 # BEAM-4:175 :: C00 C04 C06 C08 C12 C13 C14 E03 E04 E06 S01 S02 S03 S04 W02 W03 W04 W05 Total=18 --------------------------------------------------------------------------- 22:43 : SUBA2 not taken source, due to this stopped command file. 22:43 : Bad scan in GWBH9 and GWBH10 (raw.2). Note : Satellite observed from 22:43 to 23:00. 22:49 : Restarted command file. ------------------------------------------------------------------------- 23:42 : Stopped command file due source set. 23:45 : Started scan on phase cal 23:50 : Stopped scan and observation closed.