GTAC Observation Log 1. Date : 24/10/2010 2. Observation Sr. No. : 5076 3. Observer : Dr. BCJ, Vishal Gajjar 4. Observer's Email : bcj@ncra.tifr.res.in,gajjar@ncra.tifr.res.in 5. Project Name : A detailed study of Nulling in PSR J1738-2330 6. Project Code : 18_036 7. Operator(s) : Deepak, Manisha, Rupsingh, Santaji, Shilpa 8. Command File : /odisk/gtac/cmd/hold.cmd 9. LTA/LTB File : /rawdata/24oct/18_036_24oct2010.lta, /rawdata1/24oct/18_036_24oct2010.ltb 10. GSB File : /gsbifrdata/24oct/18_036_24oct2010_gsb.lta 11. LogFlag File : /odisk/online1/logflags/18_036.FLAGS.1 ANTENNA SETTINGS : 12. RF Freq(MHz) & Solar Attn(dB)- RF1 : 325 MHz ,RF2 : 325 MHz, SA1 : 14 dB, SA2 : 14 dB 13. Ist LO (MHz) & IVth LO (MHz) : ILO1 : 255 MHz, ILO2 : 255 MHz, IVLO1 : 70 MHz, IVLO2 : 70 MHz 14. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 20+4 dB, 32 MHz,OFF, IF-CH2 : 20+4 dB, 32 MHz,OFF 15. BB BW(KHz) & BB ALC : 16000 KHz, OFF CORRELATOR SETTINGS : GHB Settings : 16. GHB Channels : 0:127:1 17. Correlator Mode : IndianPolar 18. Frequency Parameters (TPA) : 325 325 255 255 70 70 GSB Settings : 19. Maximum Channels : 512 20. Final Bandwidth (MHz): OFF MHz; Steps : 0 21. IFBW : LO5(MHz) : 32:149-156 MHz 22. Stokes : Total_Intensity 23. Beam - 1 : IA 24. Beam - 2 : PA 25. Integration Time : 128 LTA ~ 16.908 Sec. 26. No of Antennas Working(Fringing) :27 27. Name of Non-Working Antennas (with reason for each) : C03 : Painting. C13 : ABC T.O. W02 : No fringe. C05 : Very low fringe. 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 09:00 - 00:00 30. ONLINE Machine : Lenyadri 31. Comments (During Observations) : 10:00 : Power eq. done (IF : 600, BB : 1000). 10:25 : Phasing done on 3C286. 10:34:00: Started observation. 10:35:12 :-3C286 10:54:49 :-B1642-03 11:23:45 :-1625-311 11:39:24 :-3C286 11:43:16 :-3C286 12:05:14 :-J1738-2330 14:10:10 :-1830-360 14:14:38 :-1830-360 14:20:57 :-B1749-28 14:24:31 :-B1749-28 14:28:03 :-J1738-2330 16:26:35 :-1830-360 16:31:30 :-B1749-28 16:35:20 :-J1738-2330 18:19:29 :-1830-360 18:25:54 :-B1749-28 18:31:11 :-J1738-2330 20:03:28 :-1822-096 20:09:54 :-J1838+1415 21:14:27 :-B1937+21 22:12:00 : Stopped scan & observation session over.