GTAC Observation Log 1. Date : 07/02/2018 2. Observation Sr. No. : 10076 3. Observer : BHAL CHANDRA JOSHI, ARUN KUMAR NAIDU, Vishal R Gajjar, Geoffrey Wright 4. Observer's Email : bcj@ncra.tifr.res.in, arun@ncra.tifr.res.in, vishalg@berkeley.edu, geoffrey.wright@manchester.ac.uk 5. Project Name : Study of post null sub-pulse memory in the new coherent drifter PSR J 0934-5249 at multiple frequencies with uGMRT 6. Project Code : 33_047 7. Operator(s) : Deepak, Shilpa, Surender 8. Command File : /odisk/gtac/cmd 9. LTA File : /gwbifrdata1/06feb/33_047_06feb2018_band5.lta, /gwbifrdata1/06feb/33_047_06feb2018_band4.lta, /gwbifrdata1/06feb/33_047_06feb2018_band3.lta 10. LogFlag File : /odisk/online1/logflags/33_047C.FLAGS.5, /odisk/online1/logflags/33_047B.FLAGS.3, /odisk/online1/logflags/33_047A.FLAGS.2 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,ON, IF-CH2 : 4+14 dB, 32 MHz,ON GSB SETTINGS : 14. GSB Host : gsbm1_lenyadri 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 : OFF 22. Beam - 2 : OFF 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) : 306 306 255 255 51 51 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : W01 : Servo maintenance. W02 : Feed jam. W06 : 175 pol self. E04 : 175 pol no fringe. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 06 Feb 2018 22:00:00 - 07 Feb 2018 02:00:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :26 37. Comments (During Observations) : # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C04 C06 C08 C09 C10 C12 Total=8 # BEAM-1:175 :: C00 C01 C04 C06 C08 C09 C10 C12 Total=8 # BEAM-2:130 :: C03 C05 C11 C13 C14 E02 S01 Total=7 # BEAM-2:175 :: C03 C05 C11 C13 C14 E02 S01 S02 Total=8 # BEAM-3:130 :: C02 E03 E04 S03 S04 W03 W04 Total=7 # BEAM-3:175 :: C02 S03 S04 W03 W04 Total=5 # BEAM-4:130 :: C02 E03 E04 E05 E06 S03 S04 S06 W03 W04 W05 W06 Total=12 # BEAM-4:175 :: C02 E05 E06 S03 S04 S06 W03 W04 W05 Total=9 ------------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 : 8192 GPU_CHAN_NUM : 0:8191:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF2 : 950 950 GPU_DDCLO2 : 0.0000 0.0000 GPU_SB2 : 1 1 GCODE2 : 33_047B GPU_RF3 : 1450 1450 GPU_DDCLO3 : 0.0000 0.0000 GPU_SB3 : 1 1 GCODE3 : 33_047C GPU_RF4 : 500 500 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 33_047A GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : PA GPU_BEAM_2 : PA GPU_BEAM_3 : PA GPU_BEAM_4 : IA GPU_BM_INT : 32 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : For 32 inputs GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF --------------------------------------------------------------------------- --------------------------------------------------------------------------- 21:00 : Started settings. # sub 2 # C02 W03 W04 W05 W06 E03 E04 E05 E06 S03 S04 S06 ante 12 5 14 15 16 25 18 21 22 23 28 29 30 cp 0;defs 2;subar 2 run set2rf run set2gab # sub 3 # C03 C05 C11 C13 C14 W01 W02 E02 S01 S02 ante 10 1 19 9 11 10 8 13 17 26 27 cp 0;defs 3;subar 3 run set3rf run set3gab # sub 4 # C00 C01 C04 C06 C08 C09 C10 C12 ante 8 7 6 3 20 24 4 12 2 cp 0;defs 4;subar 4 run set4rf run set4gab --------------------------------------------------------------------------- 22:45 : Power equalized on 0837-198 @ 150 counts. ----------------------------------------------------------------------- 23:02:05 : Started scan on 3C147 for ~ 13.1533 min. 23:15:38 : Started scan on 3C147 for ~ 2.41592 min. 23:18:22 : Started scan on 3C147 for ~ 10.0663 min. 23:29:15 : Started scan on 3C147 for ~ 6.03979 min. 23:43:25 : Started scan on 0837-198 for ~ 2.81857 min. 23:46:33 : Started scan on 0837-198 for ~ 5.63714 min. 23:53:17 : Started scan on 0837-198 for ~ 5.3687 min. 23:59:24 : Started scan on 0837-198 for ~ 2.41592 min. 00:02:08 : Started scan on 0837-198 for ~ 2.95279 min. 00:07:56 : Started scan on B0932-52 for ~ 52.6133 min. 01:02:16 : Started scan on 0837-198 for ~ 2.95279 min. 01:05:24 : Started scan on 0837-198 for ~ 1.74483 min. 01:08:36 : Started scan on B0932-52 for ~ 55.57666 min. 02:00:00 : Stopped scan and observing session over. -----------------------------------------------------------------------