GTAC Observation Log 1. Date : 18/02/2018 2. Observation Sr. No. : 10104 3. Observer : Krishnakumar MA, BHAL CHANDRA JOSHI, Periasamy K. Manoharan 4. Observer's Email : kkma@ncra.tifr.res.in, bcj@ncra.tifr.res.in, mano@ncra.tifr.res.in 5. Project Name : A Large Survey for Measuring Frequency Evolution of Scattering 6. Project Code : 33_029 7. Operator(s) : Deepak, Sachin, Shilpa 8. Command File : /odisk/gtac/cmd/33_029/18feb2018/cmdfile_33_029_dualfreq_18feb18.txt 9. LTA File : /gwbifrdata/18feb/33_029_18feb2018_band3.lta, /gwbifrdata/18feb/33_029B_18feb2018_band4.lta 10. LogFlag File : /odisk/online1/logflags/PNTG.FLAGS.2661, /odisk/online1/logflags/33_029B.FLAGS.1, /odisk/online1/logflags/33_029A.FLAGS.1 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 : 4.0265 Sec 31. No of Antennas Working(Fringing) at the beginning :30 32. Name of Non-Working Antennas (with reason for each) : 33. Note for Backup : 34. Start and End Time of Obs.(IST): 18 Feb 2018 05:00:00 - 18 Feb 2018 12:30:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :30 37. Comments (During Observations) : ------------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 : 500 500 GPU_DDCLO2 : 0.0000 0.0000 GPU_SB2 : 1 1 GCODE2 : 33_029A GPU_RF4 : 950 950 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 33_029B GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : OFF GPU_BEAM_2 : OFF GPU_BEAM_3 : PA GPU_BEAM_4 : PA GPU_BM_INT : 16 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : For 32 inputs GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF --------------------------------------------------------------------------- # GWB GAC configuration is as follows : # BEAM-3:130 :: C01 C03 C05 C06 C08 C09 C10 C11 W01 Total=9 # BEAM-3:175 :: C01 C03 C05 C06 C08 C09 C10 C11 W01 Total=9 # BEAM-4:130 :: C00 C02 C04 C12 C13 C14 E02 S01 S02 W02 Total=10 # BEAM-4:175 :: C00 C02 C04 C12 C13 C14 E02 S01 S02 W02 Total=10 --------------------------------------------------------------------------- # 470MHz # sub 2 # C01 C03 C05 C06 C08 C09 C10 C11 W01 W03 W04 W05 W06 E04 E05 E06 S03 S04 S06 ante 19 6 1 19 20 24 4 12 9 8 14 15 16 25 21 22 23 28 29 30 cp 0;defs 2;subar 2 # 725MHz # sub 4 # C00 C02 C04 C12 C13 C14 W02 E02 E03 S01 S02 ante 11 7 5 3 2 11 10 13 17 18 26 27 cp 0;defs 4;subar 4 --------------------------------------------------------------------------- 05:00 : Started settings. 05:50 : Power equalized on 1712-281 @ 150 counts. 06:10 : Phasing done on 1712-281. 06:11 : Started scan on 1712-281 (On source). --------------------------------------------------------------------------- 06:17 : S02-130pol removed from GAC. --------------------------------------------------------------------------- # GWB GAC configuration is as follows : # BEAM-3:130 :: C01 C03 C05 C06 C08 C09 C10 C11 W01 Total=9 # BEAM-3:175 :: C01 C03 C05 C06 C08 C09 C10 C11 W01 Total=9 # BEAM-4:130 :: C00 C02 C04 C12 C13 C14 E02 S01 W02 Total=9 # BEAM-4:175 :: C00 C02 C04 C12 C13 C14 E02 S01 S02 W02 Total=10 --------------------------------------------------------------------------- 06:19 : Started scan on 1712-281 (Off 5d dec). 06:28 : '/odisk/gtac/cmd/33_029/18feb2018/cmdfile_33_029_dualfreq_18feb18.txt' command file started. 06:01:27 : Started scan on 1712-281 for ~ 3.84757 min. 06:05:41 : Started scan on 1712-281 for ~ 5.63714 min. 06:11:38 : Started scan on 1712-281 for ~ 6.17401 min. 06:19:37 : Started scan on 1712-281 for ~ 4.74236 min. 06:28:47 : Started scan on J1633-4453 for ~ 15.2113 min. 06:46:14 : Started scan on J1633-5015 for ~ 10.29 min. 06:58:46 : Started scan on J1637-4553 for ~ 20.2221 min. 07:21:42 : Started scan on 1712-281 for ~ 2.5054 min. 07:24:27 : Started scan on 1712-281 for ~ 0.268435 min. 07:26:38 : Started scan on J1659-4439 for ~ 45.3655 min. 08:15:39 : Started scan on 1712-281 for ~ 2.59487 min. 08:18:23 : Started scan on 1712-281 for ~ 0.357914 min. 08:21:31 : Started scan on J1640-4715 for ~ 20.3116 min. 08:43:55 : Started scan on J1644-4559 for ~ 10.29 min. 08:56:22 : Started scan on J1701-4533 for ~ 10.29 min. 09:08:58 : Started scan on J1705-3423 for ~ 10.29 min. 09:21:44 : Started scan on 1712-281 for ~ 2.41592 min. 09:24:19 : Started scan on 1712-281 for ~ 0.447392 min. 09:27:03 : Started scan on J1705-4108 for ~ 25.2329 min. 09:56:20 : Started scan on J1750-2438 for ~ 20.3116 min. 10:18:44 : Started scan on 1712-281 for ~ 2.59487 min. 10:21:28 : Started scan on 1712-281 for ~ 0.715827 min. 10:24:08 : Started scan on J1752-2410 for ~ 60.219 min. 11:26:41 : Started scan on 1712-281 for ~ 2.68435 min. 11:29:35 : Started scan on 1712-281 for ~ 0.53687 min. 11:32:15 : Started scan on J1756-2251 for ~ 40.3548 min. 12:21:53 : Started scan on 3C48 for ~ 1.96852 min. 12:27:12 : Started scan on 3C48 for ~ 2.5054 min. 12:30 : Stopped command file and close