GTAC Observation Log 1. Date : 28/11/2019 2. Observation Sr. No. : 11628 3. Observer : James McKee, BHAL CHANDRA JOSHI 4. Observer's Email : jamesmckee23@gmail.com, bcj@ncra.tifr.res.in 5. Project Name : Broadband Observations of Giant Pulses from the Millisecond Pulsars B1937\\+21 and B1957\\+20 6. Project Code : 37_004 7. Operator(s) : Pramod, Surender 8. Command File : /odisk/gtac/cmd 9. LTA File : /gsbifrdata/28nov/37_004A_28nov2019_gsb.lta, /gwbifrdata1/28nov/37_004_band4_suba4_28nov2019_gwb.lta, /gwbifrdata2/28nov/37_004_band3_suba3_28nov2019_gwb.lta 10. LogFlag File : /odisk/online1/logflags/DDTC099.FLAGS.2 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1371 MHz ,RF2 : 1371 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1320 MHz, ILO2 : 1320MHz , 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 : OFF 20. Stokes : Total_Intensity 21. Beam - 1 : OFF 22. Beam - 2 : Volt 23. ACQ BW : 16.666666 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 138 28. LO5 -2 : 167 29. Frequency Parameters (TPA) : 1371 1371 1320 1320 51 51 30. Integration Time : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :28 32. Name of Non-Working Antennas (with reason for each) : E05 : Feed jammed C04 : : Taken for Mechanical work. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 28 Nov 2019 19:00:00 - 28 Nov 2019 22:40:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :28 37. RFI Status : 38. 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 : 1024 GPU_CHAN_NUM : 0:1023:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF3 : 400 400 GPU_DDCLO3 : 0.0000 0.0000 GPU_SB3 : 1 1 GCODE3 : 37_004B GPU_RF4 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : -1 -1 GCODE4 : 37_004A 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 : 4 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- # sub 3 # C01 C02 C03 C06 C08 C09 C12 C14 W01 E02 ante 10 6 5 1 20 24 4 2 10 8 17 cp 0;defs 3;subar 3 # sub 4 # C00 C04 C05 C10 C11 C13 W02 W03 W04 W05 W06 E03 E04 E05 E06 S01 S02 S03 S04 S06 ante 20 7 3 19 12 9 11 13 14 15 16 25 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 C05 C10 C11 C13 E03 S01 S02 W02 Total=9 # BEAM-1:175 :: C00 C05 C10 C11 C13 E03 S01 S02 W02 Total=9 # BEAM-2:130 :: C01 C02 C03 C06 C08 C09 C12 C14 E02 W01 Total=10 # BEAM-2:175 :: C01 C02 C03 C06 C08 C09 C12 C14 E02 W01 Total=10 ------------------------------------------------ # GSB GAC configuration is as follows : # BEAM-1:130 :: C00 C05 C10 C11 C13 E03 S01 S02 W02 Total=9 # BEAM-1:175 :: C00 C05 C10 C11 C13 E03 S01 S02 W02 Total=9 # BEAM-2:130 :: C00 C05 C10 C11 C13 E03 S01 S02 W02 Total=9 # BEAM-2:175 :: C00 C05 C10 C11 C13 E03 S01 S02 W02 Total=9 ----------------------------------------------------------------------- 18:57:38 : Started scan on 3C48 for ~ 3.18767 min. 19:01:15 : Started scan on 3C48 for ~ 7.68396 min. 19:09:20 : Started scan on 3C48 for ~ 3.12056 min. 19:15:09 : Started scan on 3C48OFF for ~ 2.88568 min. 19:26:07 : Started scan on 2225-049 for ~ 2.18104 min. 19:28:25 : Started scan on 2225-049 for ~ 4.66406 min. 19:36:11 : Started scan on J1939+2134 for ~ 11.5427 min. 19:50:26 : Started scan on 2225-049 for ~ 1.9126 min. 19:52:37 : Started scan on 2225-049 for ~ 1.20796 min. 19:56:24 : Started scan on J1939+2134 for ~ 64.3909 min. 21:00:00 : Stopped scan and observing session over. -----------------------------------------------------------------------