GTAC Observation Log 1. Date : 12/08/2017 2. Observation Sr. No. : 9659 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) : Nilesh, Rupsing, Surender 8. Command File : /odisk/gtac/cmd/jroy/32_045_11aug.cmd 9. LTA File : /gsbifrdata/11aug/32_045_11aug2017_band5.lta, /gsbifrdata/11aug/32_045_11aug2017_band4.lta, /gwbifrdata1/11aug/32_045_11aug2017_sub4_1460_gwb.lta, /gwbifrdata1/11aug/32_045_11aug2017_sub2_610_gwb.lta 10. LogFlag File : /odisk/online1/logflags/32_045A.FLAGS.1, /odisk/online1/logflags/32_045A.FLAGS, /odisk/online1/logflags/32_045.FLAGS.2, /odisk/online1/logflags/32_045.FLAGS.1 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 : 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) : 1454 1454 1505 1505 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :28 32. Name of Non-Working Antennas (with reason for each) : S02 : : Servo Problem. W03 : : Mech Work. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 11 Aug 2017 18:00:00 - 12 Aug 2017 01:05:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :29 37. Comments (During Observations) : 18:00 : Started set-up. -------------------------------- ------------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 : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF2 : 550 550 GPU_DDCLO2 : 0.0000 0.0000 GPU_SB2 : -1 -1 GCODE2 : 32_045A GPU_RF4 : 1460 1460 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 32_045 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 : 16 -------------------------------- ------------------------------------------------------- 18:00 -18:35 : Multi-sub-array settings done. ------------------------------------------------------- 18:35 -18:50 : GSB and GWB setting done. -------------------------------------------------------- 18:50 : C03 & C09 No fringe in GSB. ---------------------------------------------------------------- 19:00 : C03 & C09 Started fringing in GSB.(LO1 resetting done) ---------------------------------------------------------------- 19:00 : Power eq and phasing done on 1822-096. ---------------------------------------------------------------- 19:00 : GAC Selection done for GSB and GWB. # GSB GAC configuration is as follows : # BEAM-1:130 :: C02 C03 C05 C09 C10 C14 E02 E03 Total=8 # BEAM-1:175 :: C02 C03 C05 C09 C10 C14 E02 E03 Total=8 # BEAM-2:130 :: C00 C01 C04 C06 C08 C11 C12 C13 E04 E05 S01 S03 S04 W01 W02 W04 W05 Total=17 # BEAM-2:175 :: C00 C01 C04 C06 C08 C11 C12 C13 E04 E05 S01 S03 S04 W01 W02 W04 W05 Total=17 -------------------------- ------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: Total=0 # BEAM-1:175 :: Total=0 # BEAM-2:130 :: Total=0 # BEAM-2:175 :: Total=0 # BEAM-3:130 :: C02 C03 C05 C09 C10 C14 E02 E03 Total=8 # BEAM-3:175 :: C02 C03 C05 C09 C10 C14 E02 E03 Total=8 # BEAM-4:130 :: C00 C01 C04 C06 C08 C11 C12 C13 E04 E05 S01 S03 S04 W01 W02 W04 W05 Total=17 # BEAM-4:175 :: C00 C01 C04 C06 C08 C11 C12 C13 E04 E05 S01 S03 S04 W01 W02 W04 W05 Total=17 --------------------------- ---------------------------- 19:05 : Started command file. ------------------------------------- ------------------------------------- 19:13 : 19:30 : online sub-array problem, not accepting commands, restarted subarray 2 and subarray 4. ---------------------------------- ---------------------------------- 19:31 : Started command file. 19:34 : S02 Released brakes. 00:48 : Stopped command file 00:50 : Started scan on 1822-096 01:00 : Stopped scan & observation session over.