GTAC Observation Log 1. Date : 27/07/2015 2. Observation Sr. No. : 7951 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) : Shilpa, Surender 8. Command File : /odisk/gtac/cmd 9. LTA File : /gsbifrdata/27jul/27_020_27jul2015.lta 10. LogFlag File : /odisk/online1/logflags/27_020.FLAGS.26 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 : 4+14 dB, 32 MHz,ON, IF-CH2 : 4+14 dB, 32 MHz,ON 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 : OFF 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 :30 32. Name of Non-Working Antennas (with reason for each) : 33. Note for Backup : 34. Start and End Time of Obs.(IST): 27 Jul 2015 07:00:00 - 27 Jul 2015 09:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :30 37. Comments (During Observations) : 07:00 : Started set-up. 07:16 : Power eq done on 3c147 ~150 counts. 07:35 : Phasing done on 3C138. 07:36 : Started scan on 3C138 for ~ 8.28794 min. 07:46 : Started scan on B0531+21 for ~ 6.94576 min. 07:56 : Started scan on J0751+1807 for ~ 102 min. Note :- Buffer loss observe 5 times on source (J0751+1807) recording. "8 -- (SHM) buffers lost for RANK = 0 CURBLOCK = 7 SHM_CUR_BLOCK = 7 ITR 1558 8 -- (SHM) buffers lost for RANK = 0 CURBLOCK = 3 SHM_CUR_BLOCK = 7 ITR 1570 8 -- (SHM) buffers lost for RANK = 0 CURBLOCK = 5 SHM_CUR_BLOCK = 5 ITR 1620 8 -- (SHM) buffers lost for RANK = 0 CURBLOCK = 6 SHM_CUR_BLOCK = 7 ITR 19109 8 -- (SHM) buffers lost for RANK = 0 CURBLOCK = 3 SHM_CUR_BLOCK = 4 ITR 19226 " 09:41:31 : Started scan on B0531+21 for ~ 7.14709 min.