GTAC Observation Log 1. Date : 22/12/2016 2. Observation Sr. No. : 9081 3. Observer : Mayuresh Surnis, BHAL CHANDRA JOSHI 4. Observer's Email : mpsurnis@ncra.tifr.res.in, bcj@ncra.tifr.res.in 5. Project Name : Deep Low Frequency Observations to Investigate Spectral Turnovers in Pulsars Discovered with the GMRT 6. Project Code : 31_077 7. Operator(s) : Navnath, Pramod 8. Command File : /odisk/gtac/cmd/hold.cmd 9. LTA File : /gsbifrdata/22dec/31_077_22dec2016.lta, /gwbifrdata/22dec/31_077_475LO_22dec2016.lta 10. LogFlag File : /odisk/online1/logflags/31_077.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,OFF, IF-CH2 : 4+14 dB, 32 MHz,OFF 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 : 32.2122 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): 22 Dec 2016 18:00:00 - 22 Dec 2016 21:30:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :30 37. Comments (During Observations) : GAC Config : CSQ (except C10),S01,W01,E02.=16 Ants. -----------GWB Setting--------- GPU_MODE : 0 GPU_LTA : 32 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW: 1.0 GPU_EDGE_FRQ: 0.000000 GPU_CHAN_MAX: 4096 GPU_CHAN_NUM: 0:4095:1 GPU_STOKES : 2 GPU_RF : 475 475 GPU_LO-1 : 540 540 GPU_DDC : 0 GPU_DDCLO : 0.0000 0.0000 GPU_SIDEBAND: 1 1 GPU_RF1 : 0 0 GPU_DDCLO1 : 0.0000 0.0000 GPU_SB1 : 1 1 GCODE1 : SUBA1 GPU_RF2 : 700 700 GPU_DDCLO2 : 0.0000 0.0000 GPU_SB2 : 1 1 GCODE2 : SUBA2 GPU_RF3 : 1460 1460 GPU_DDCLO3 : 0.0000 0.0000 GPU_SB3 : 1 1 GCODE3 : SUBA3 GPU_RF4 : 475 475 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 31_077 GPU_RF5 : 0 0 GPU_DDCLO5 : 0.0000 0.0000 GPU_SB5 : 1 1 GCODE5 : SUBA5 GPU_CNTRL : 8 GPU_FSTOP : 0 GPU_BEAM_1 : 2:1 GPU_BEAM_2 : 0:1 GPU_BM_INT : 8 GPU_GAINEQ : 1 GPU_TPA : 1 GPU_BITS : 8 GPU_FILRFI : 0 -------------------------------- 18:00 : Started setup. 18:20 : Started power eq. 18:30 : Started phasing on 3C468.1 18:45 : phasing done. 18:50 : Started recording on 3C468.1 for 5min. ----------------------------------------------------- 18:15:21 : Started scan on 3C48 for ~ 7.51619 min. 18:29:06 : Started scan on 3C468.1 for ~ 4.02653 min. 18:33:39 : Started scan on 3C468.1 for ~ 16.3745 min. 18:50:30 : Started scan on 3C468.1 for ~ 1.61061 min. 18:53:17 : Started scan on 3C468.1 for ~ 7.24775 min. 19:01:58 : Started scan on J2208+5500 for ~ 61.2032 min. 20:05:21 : Started scan on 3C468.1 for ~ 5.63714 min. 20:11:27 : Started scan on 3C468.1 for ~ 5.10027 min. 20:17:56 : Started scan on J2217+5733 for ~ 32.7491 min. 20:52:05 : Started scan on J0026+6320 for ~ 30.87 min. 21:23:25 : Started scan on 3C468.1 for ~ 5.3687 min. 21:32:28 : Started scan on 3C48 for ~ 4.5634 min. 21:30 : observation over. ------------------------------------------------------ -