GTAC Observation Log 1. Date : 21/11/2014 2. Observation Sr. No. : 7438 3. Observer : Yogesh Maan, BHAL CHANDRA JOSHI, ARUN KUMAR NAIDU 4. Observer's Email : ymaan@ncra.tifr.res.in, bcj@ncra.tifr.res.in, arun@ncra.tifr.res.in 5. Project Name : A Search for Giant Pulses from Millisecond and Young Pulsars 6. Project Code : 27_020 7. Operator(s) : Sachin, Shilpa, Surender 8. Command File : 9. LTA File : /gsbifrdata1/21nov/27_020_21nov2014_2s.lta.1,/gsbifrdata1/21nov/27_020_21nov2014_2s.lta 10. LogFlag File : /odisk/online1/logflags/27_020.FLAGS.6,/odisk/online1/logflags/27_020.FLAGS.5 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 602 MHz ,RF2 : 602 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540MHz , IVLO1 : 62 MHz, IVLO2 : 62 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 24+4 dB, 16 MHz,OFF, IF-CH2 : 24+4 dB, 16 MHz,OFF GSB SETTINGS : 14. GSB Host : gsbm1 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 : Volt 23. ACQ BW : 16.666666 MHz 24. Final BW : 16.666666 MHz; Step # 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 138 28. LO5 -2 : 167 29. Frequency Parameters (TPA) : 602 602 540 540 62 62 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : C01 : Feed cage painting. E04 : Feed jam. E06 : No fringe. W04 : Low fringe. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 21 Nov 2014 06:00:00 - 21 Nov 2014 10:18:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :26 37. Comments (During Observations) : 06:15 : Power equalised on crab at 100 counts. Antennas in GAC are : C00,C02,C03,C04,C05,C06,C08,C09,C10,C11,C12,C13,C14,E02,S01,W02 -------------------------------------------------------------------- 06:25 : Done phasing on 3C147 and started off-on-off tests on 3C147. 06:36 : Completed on-off test on 3C147. 06:36 : E02 found de-phased of by large margin, removed from GAC. 06:46 : Started recording pulsar B0531+21 for ~ 39.3258 min. 07:32 : Started scan on 3C147 for ~ 9.02613 min. ------------------------------------------------------------------ Antennas in GAC are : C00,C02,C03,C04,C05,C06,C08,C09,C10,C11,C12,C13,C14,S01,W01 07:42 : Started Power eq on 3C147 @150counts. 07:50 : Power eq done on 3C147. 07:51 : Started phasing on 0738+177 for ~ 2.68435 min. 07:54 : Started scan on 0738+177 for ~ 2.91923 min. 07:57 : Started scan on 0738+177 for ~ 1.47639 min. 08:02 : Started scan on 0741+312 for ~ 1.30862 min. 08:03 : Started scan on 0741+312 for ~ 2.31525 min. 08:06 : Started scan on 0741+312 for ~ 0.436207 min. 08:08 : Started scan on 0834+555 for ~ 1.5435 min. 08:10 : Phasing done on 0834+555 for ~ 1.5435 min. Antennas in GAC are : C00,C02,C03,C04,C05,C06,C08,C09,C10,C11,C12,C13,C14,S01,W01 08:15 : Started scan on J0751+1807 for ~ 81.0674 min. 09:38 : Started scan on 0834+555 for ~ 7.81818 min. 09:49 : Started scan on J1022+1001. 10:18 : Stopped scan and observing session is over.