GTAC Observation Log 1. Date : 07/05/2018 2. Observation Sr. No. : 10238 3. Observer : Navin Sridhar, Sudip Bhattacharyya, BHAL CHANDRA JOSHI 4. Observer's Email : navins@iiserb.ac.in, sudip@tifr.res.in, bcj@ncra.tifr.res.in 5. Project Name : Giant radio pulses from PSR J0218\\+4232 as a probe for studying the origin of FRBs 6. Project Code : 34_018 7. Operator(s) : Navnath, Sachin 8. Command File : /odisk/gtac/cmd/34_018/07may18.cmd 9. LTA File : /gwbifrdata2/07may/34_018C_07may2018_1460lsb.lta.1, /gwbifrdata2/07may/34_018C_07may2018_1460lsb.lta, /gwbifrdata2/07may/34_018B_07may2018_900lsb.lta.1, /gwbifrdata2/07may/34_018B_07may2018_900lsb.lta 10. LogFlag File : /odisk/online1/logflags/PNTG.FLAGS.2728, /odisk/online1/logflags/34_018C.FLAGS.2, /odisk/online1/logflags/34_018B.FLAGS.3 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 : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :28 32. Name of Non-Working Antennas (with reason for each) : C05 : : FE work C14 : : Structural Repair Work 33. Note for Backup :[gpuuser@gwbh8 ~]$ ls -ltr /data4/gpuuser/34_018C_07may2018/* [gpuuser@gwbh7 ~]$ ls -ltr /data6/gpuuser/34_018C_07may2018/* 34. Start and End Time of Obs.(IST): 07 May 2018 07:30:00 - 07 May 2018 10:15:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :28 37. Comments (During Observations) : 07:00 : Started setup. 07:30 : pntg done. Started setup. : RF setting, sub array spliting, power eq, phasing, GAC Configuration. #725# sub 2 # C00 C01 C04 C05 C08 C09 C10 C12 ante 8 7 6 3 19 24 4 12 2 cp 0;defs 2;subar 2 #1420# sub 4 # C02 C03 C06 C11 C13 C14 W01 W02 W03 W04 W05 W06 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 ante 22 5 1 20 9 11 10 8 13 14 15 16 25 17 18 21 22 23 26 27 28 29 30 cp 0;defs 4;subar 4 # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C04 C08 C09 C10 C12 Total=7 # BEAM-1:175 :: C00 C01 C04 C08 C09 C10 C12 Total=7 # BEAM-2:130 :: C02 C03 C06 C11 C13 E02 E03 E04 S01 S02 S03 W01 W02 W03 W04 Total=15 # BEAM-2:175 :: C02 C03 C06 C11 C13 E02 E03 E04 S01 S02 S03 W01 W02 W03 W04 Total=15 ------------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 : 900 900 GPU_DDCLO2 : 0.0000 0.0000 GPU_SB2 : 1 1 GCODE2 : 34_018B GPU_RF4 : 1460 1460 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 34_018C GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : Voltage GPU_BEAM_2 : PA GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 8 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 64 inputs. GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- ----------------------------------------------------------------------- 08:22:44 : Started scan on 3C48 for ~ 1.20796 min. 08:24:09 : Started scan on 3C48 for ~ 3.62388 min. 08:28:41 : Started scan on 3C48OFF for ~ 0.805306 min. ---------------------------------------------------------------------- 08:30 : U2.pl stopped responding .. Restarted subar2 and user2. ----------------------------------------------------------------------- 08:35 : Restarted cmd file. /odisk/gtac/cmd/34_018/07may18.cmd 08:38:10 : Started scan on 3C48 for ~ 1.20796 min. 08:39:34 : Started scan on 3C48 for ~ 3.62388 min. 08:44:35 : Started scan on 3C48OFF for ~ 3.5344 min. 08:55:19 : Started scan on NPOLE for ~ 3.66861 min. 09:01:20 : Started scan on J0218+4232 for ~ 60.3754 min. 10:01:00 : Cmd file stopped. 10:05:00 : Started Phasing and ON src recording. 10:09:18 : Started scan on 3C48 for ~ 1.20796 min. 10:10:47 : Started scan on 3C48 for ~ 3.5344 min. 10:15:00 : Observation session over. ------------------------------------------ -----------------------------------------------------------------------