GTAC Observation Log 1. Date : 04/06/2017 2. Observation Sr. No. : 9457 3. Observer : Yashwant Gupta, BHAL CHANDRA JOSHI, Nikhil Vijay Naik, Kishalay De, Yogesh Maan, Manjari Bagchi, Jayanta Roy, Gopakumar Achamveedu 4. Observer's Email : ygupta@ncra.tifr.res.in, bcj@ncra.tifr.res.in, naiknikhil27@gmail.com, ugkishalayde@ug.iisc.in, ymaan@ncra.tifr.res.in, manjari.bagchi@gmail.com, jroy@ncra.tifr.res.in, gopu.tifr@gmail.com 5. Project Name : Towards precision pulsar timing with the upgraded GMRT 6. Project Code : 32_032 7. Operator(s) : Deepak, Navnath, Nilesh, Pramod, Shilpa, Surender 8. Command File : /odisk/gtac/cmd/32_032/04jun/obs4.cmd 9. LTA File : /gwbifrdata2/04jun/32_032_04jun2017_1460_gwb.lta, /gwbifrdata2/04jun/32_032B_04jun2017_500_gwb.lta 10. LogFlag File : /odisk/online1/logflags/32_032B.FLAGS.7, /odisk/online1/logflags/32_032.FLAGS.8 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_shivneri 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) : 1454 1454 1505 1505 51 51 30. Integration Time : 4.0265 Sec 31. No of Antennas Working(Fringing) at the beginning :23 32. Name of Non-Working Antennas (with reason for each) : C13 : : ABC time out. C14 : : Structural Repair W05,W06 : ABC time out. S02 : : Servo Time out. E05 : : No fringe. W04 : : NO fringe. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 04 Jun 2017 11:00:00 - 04 Jun 2017 16:06:30 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :24 37. Comments (During Observations) : 11:00 : Started setup. ------------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 : 500 500 GPU_DDCLO2 : 0.0000 0.0000 GPU_SB2 : 1 1 GCODE2 : 32_032B GPU_RF4 : 1460 1460 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 32_032 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : PA GPU_BEAM_2 : PA GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 8 GPU_GAINEQ : ON GPU_TPA : From GWB GUI. GPU_BITS : 64 inputs. GPU_FILRFI : RFI Filterring OFF --------------------------------------------------------------------------- # 325 MHz # sub 2 # C00 C02 C05 C08 C11 E02 S01 ante 7 7 5 19 24 9 17 26 # 1420 MHz # sub 4 # W01 C01 C03 C04 C06 C09 C10 C12 C13 C14 W02 W03 W04 W05 W06 E03 E04 E05 E06 S02 S03 S04 S06 11:30 : Started power eq on 3C48. 11:45 : Started phasing. # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C02 C05 C08 C11 E02 S01 Total=7 # BEAM-1:175 :: C00 C02 C05 C08 C11 E02 S01 Total=7 # BEAM-2:130 :: C01 C03 C04 C06 C09 C10 C12 E03 E04 E06 S03 S04 S06 W01 W02 W03 Total=16 # BEAM-2:175 :: C01 C03 C04 C06 C09 C10 C12 E03 E04 E06 S03 S04 S06 W01 W02 W03 Total=16 12:05 : Started command file. /odisk/gtac/cmd/32_032/04jun/obs4.cmd 11:30:44 : Started scan on 3C48 for ~ 0.53687 min. 11:49:13 : Started scan on 3C48 for ~ 10.469 min. 12:01:40 : Started scan on 3C48 for ~ 1.07374 min. 12:02:59 : Started scan on 3C48 for ~ 0.715827 min. 12:05:25 : Started scan on J0023+0923 for ~ 20.2221 min. 12:29:32 : Started scan on 0440-435 for ~ 1.07374 min. 12:30:57 : Started scan on 0440-435 for ~ 0.715827 min. 12:32:40 : Started scan on J0437-4715 for ~ 20.1326 min. 12:55:36 : Started scan on 0534+194 for ~ 0.447392 min. 12:57 : U2.pl user2 stopped responding. Restarted uesr2 and subar2. 12:59:41 : Started scan on 0534+194 for ~ 1.16322 min. 13:01:00 : Started scan on 0534+194 for ~ 0.268435 min. 13:03:21 : Started scan on 0534+194 for ~ 0.626349 min. 13:05:47 : Started scan on 0534+194 for ~ 1.07374 min. 13:07:12 : Started scan on 0534+194 for ~ 0.715827 min. # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C02 C05 C08 C11 E02 S01 Total=7 # BEAM-1:175 :: C00 C02 C05 C08 C11 E02 S01 Total=7 # BEAM-2:130 :: C01 C03 C04 C06 C09 C10 C12 C13 E03 E04 E06 S03 S04 S06 W01 W02 W03 Total=17 # BEAM-2:175 :: C01 C03 C04 C06 C09 C10 C12 C13 E03 E04 E06 S03 S04 S06 W01 W02 W03 Total=17 13:15:00 : C13 added in GAC as above. 13:17:18 : Started scan on J0613-0200 for ~ 20.83183 min. Satellite Info :- 04Jun2017 12:42:16 prj: 32_032 sub: 4 src: J0437-4715 ra: 4.62 dec: -47.25 az: 184.14 el: 23.49 tpa: 1454.000 1454.000 1505 1505 51.0000 51.0000 sat: 39741 name: NAVSTAR 70 (USA 251) freq: 1420 MHz 04Jun2017 13:22:31 prj: 32_032B sub: 2 src: J0613-0200 ra: 6.23 dec: -2.01 az: 157.41 el: 67.27 tpa: 306.000 306.000 255 255 51.0000 51.0000 sat: 40887 name: MUOS 4 freq: 325 MHz 13:44:42 : Started scan on 3C147 for ~ 1.07374 min. 13:46:06 : Started scan on 3C147 for ~ 0.715827 min. 13:48:08 : Started scan on J0645+5158 for ~ 20.2221 min. 14:15:09 : Started scan on 0744-064 for ~ 1.07374 min. 14:16:29 : Started scan on 0744-064 for ~ 0.715827 min. 14:19:46 : Started scan on J0751+1807 for ~ 20.1326 min. 14:43:16 : Started scan on 0834+555 for ~ 1.16322 min. 14:44:45 : Started scan on 0834+555 for ~ 0.626349 min. 14:46:47 : Started scan on J1012+5307 for ~ 20.2221 min. 15:13:15 : Started scan on 0837-198 for ~ 1.2527 min. 15:14:49 : Started scan on 0837-198 for ~ 0.626349 min. 15:18:20 : Started scan on J1022+1001 for ~ 20.2221 min. 15:42:08 : Started scan on 0837-198 for ~ 1.16322 min. 15:43:33 : Started scan on 0837-198 for ~ 0.715827 min. 15:46:22 : Started scan on J1024-0719 for ~ 20.1326 min. 16:06:30 : Stopped command file and observing session over.