GTAC Observation Log 1. Date : 31/07/2019 2. Observation Sr. No. : 11302 3. Observer : arianna,Alessandro Ridolfi,Bhaswati Bhattacharyya,Yashwant Gupta 4. Observer's Email : ianna.miraval@inaf.it,alessandro.ridolfi@inaf.it,bhaswati@ncra.tifr.res.in,ygupta@ncra.tifr.res.in 5. Project Name : DDTC082 6. Project Code : DDTC082 7. Operator(s) : Navnath 8. Command File : /odisk/gtac/cmd/ddtc082/31jul/obs2.cmd 9. LTA File : /gwbifrdata2/31jul/ddtc082_31jul2019_gwb.lta.1, /gwbifrdata2/31jul/ddtc082_31jul2019_gwb.lta, /gwbifrdata2/31jul/ddtc082_31jul2019_610.lta, /gwbifrdata2/31jul/ddtc082_31jul2019_325.lta 10. LogFlag File : /odisk/online1/logflags/DDTC082.FLAGS.3 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 : 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) : 591 591 540 540 51 51 30. Integration Time : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : E04,E05,E06 : ABC time out. 33. Note for Backup :gwbh7 and gwbh8 : /data4/gpuuser/SUBA4_31jul19/* 34. Start and End Time of Obs.(IST): 31 Jul 2019 01:30:00 - 31 Jul 2019 06:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :27 37. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 100.0000 GPU_FINAL_BW : 100.0000 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 : SUBA2 GPU_RF4 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : -1 -1 GCODE4 : SUBA4 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : Voltage GPU_BEAM_2 : Voltage GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 8 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- 03:10:31 : Started scan on 2225-049 for ~ 3.04227 min. 03:15:23 : Started scan on 2225-049 for ~ 5.36871 min. 03:22:45 : Started scan on J2129-0429 for ~ 66.1246 min. : BM1 Recording error..stopped growing. : Restarted recording but first few minutes data got overwritten. 04:30:28 : Started scan on 2225-049 for ~ 2.77383 min. 04:33:29 : Started scan on 2225-049 for ~ 4.38444 min. 04:39:26 : Started scan on J2129-0429 for ~ 81.7833 min. : In second run .bm2 recording stopped after 20 min. 06:00:00 : observation session over. ------------------------------------------------------------------ # GWB GAC configuration is as follows : # BEAM-1:130 :: C01 C03 C05 C10 C12 E02 E03 S01 S02 S03 W01 W02 Total=12 # BEAM-1:175 :: C01 C03 C05 C10 C12 E02 E03 S01 S02 S03 W01 W02 Total=12 # BEAM-2:130 :: C04 C09 C11 C14 Total=4 # BEAM-2:175 :: C04 C09 C11 C14 Total=4