GTAC Observation Log 1. Date : 20/08/2017 2. Observation Sr. No. : 9688 3. Observer : Yashwant Gupta, Kishalay De, Kaustubh Milind Rajwade, Mihir Krishna Arjunwadkar 4. Observer's Email : ygupta@ncra.tifr.res.in, kde@caltech.edu, rkaustubh10@gmail.com, mihir.arjunwadkar@gmail.com 5. Project Name : Single pulse studies of millisecond pulsars 6. Project Code : 32_089 7. Operator(s) : Surender 8. Command File : /odisk/gtac/cmd/32_089/20aug/32_089_cmdfile_S1-2_20aug17.txt 9. LTA File : /gsbifrdata1/20aug/32_089_20aug2017.lta, /gwbifrdata/20aug/32_089_20aug2017_500lo.lta 10. LogFlag File : /odisk/online1/logflags/32_089.FLAGS.3 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_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) : 306 306 255 255 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :25 32. Name of Non-Working Antennas (with reason for each) : C05 : Servo problem C06 : Servo problem. E05 : Feed jam. E06 : Frequently getting ABC reset. C01 : Amplitude jump in GSB and GWB. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 20 Aug 2017 08:00:00 - 20 Aug 2017 12:10:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :26 37. Comments (During Observations) : 08:00 : 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_RF4 : 500 500 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 32_089 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : Voltage GPU_BEAM_2 : OFF GPU_BEAM_3 : PA 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 -------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C02 C03 C04 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=20 # BEAM-1:175 :: C00 C02 C03 C04 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=19 ------------------------------------------ # BEAM-3:130 :: C00 C02 C03 C04 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=19 # BEAM-3:175 :: C00 C02 C03 C04 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=19 # BEAM-4:130 :: C00 C02 C03 C04 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=19 ------------------------------- ------------------------------- 07:40 : Started set-up. ----------------------------------------------------------------------- 07:58:14 : Started scan on 3C48 for ~ 16.3745 min. 08:14:50 : Started scan on 3C48 for ~ 4.5634 min. 08:21:57 : Started scan on B0329+54 for ~ 15.8377 min. 08:39:30 : Started scan on 3C48 for ~ 1.61061 min. 08:41:18 : Started scan on 3C48 for ~ 0.984262 min. 08:43:15 : Started scan on J0218+4232 for ~ 22.7275 min. -------------------------------------------------------- Note : Buffer Loss observed in CD mode. -------------------------------------------------------- 09:12:23 : Started scan on 0440-435 for ~ 2.68435 min. 09:15:12 : Started scan on 0440-435 for ~ 0.894784 min. 09:20:22 : Started scan on J0437-4715 for ~ 13.3323 min. 09:43:09 : Started scan on 0744-064 for ~ 2.14748 min. 09:45:25 : Started scan on 0744-064 for ~ 2.59487 min. 09:50:44 : Started scan on J0613-0200 for ~ 20.4011 min. -------------------------------------------------------- Note : Buffer Loss observed in CD mode. -------------------------------------------------------- 10:13:27 : Started scan on 0744-064 for ~ 1.96852 min. 10:15:34 : Started scan on 0744-064 for ~ 0.984262 min. 10:18:00 : C06 added in GAC. 10:19:28 : Started scan on J0621+1002 for ~ 20.4906 min. ---------------------------------------------------------------- Note : Buffer Loss observed in CD mode. -------------------------------------------------------------- 10:44:27 : Started scan on 0834+555 for ~ 1.96852 min. 10:46:34 : Started scan on 0834+555 for ~ 0.984262 min. 11:12:43 : Started scan on J0740+6620 for ~ 20.4906 min. ---------------------------------------------------------------- Note : Buffer Loss observed in CD mode. -------------------------------------------------------------- 11:34:15 : Started scan on 0834+555 for ~ 2.86331 min. 11:37:18 : Started scan on 0834+555 for ~ 0.984262 min. 11:39:44 : Started scan on J1012+5307 for ~ 14.8534 min. ---------------------------------------------------------------- Note : Buffer Loss observed in CD mode. -------------------------------------------------------------- 12:00 : Stopped command file and observing session over.