GTAC Observation Log 1. Date : 15/01/2009 2. Observation Sr. No. : 4142 3. Observer : Reji Mathew C Thomas 4. Observer's Email : mathew@ncra.tifr.res.in 5. Project Name : Pulsar observation 6. Project Code : 15RTA01 7. Operator(s) : Navanath, 8. Command File : /odisk/gtac/cmd/hold.cmd 9. LTA File : /rawdata/15jan/15rta01_15jan2009.lta, 10. LogFlag File : /btemp2/logflags/15RTA01.FLAGS.6 ANTENNA SETTINGS : 11. RF Freq(MHz) & Solar Attn(dB)- RF1 : 157 MHz ,RF2 : 157 MHz, SA1 : 14 dB, SA2 : 14 dB 12. Ist LO (MHz) & IVth LO (MHz) : ILO1 : 223 MHz, ILO2 : 223 MHz, IVLO1 : 66 MHz, IVLO2 : 66 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 24+4 dB, 6 MHz,OFF, IF-CH2 : 24+4 dB, 6 MHz,OFF 14. BB BW(KHz) & BB ALC : 16000 KHz, OFF CORRELATOR SETTINGS : 16. Channels : 0:127:1 17. Frequency Parameters (TPA) : 157 157 223 223 66 66 18. Integration Time : 128 LTA ~ 16.908 Sec. 19. No of Antennas Working(Fringing) :25 20. Name of Non-Working Antennas (with reason for each) : S06 : abc timeout. C05 : Self power falls C08 : LO Unlock C09 : RFI C11 : 175 high power. 21. Note for Backup : -- 22. Start and End Time of Obs.(IST): 04:00 - 09:15 23. Comments (During Observations) : ------------------------------------------- ******** ONLINE Machine : Bhaskar ********* ******** Corr Mode : IndianPolar ********* -------------------------------------------- 04:00 : All feeds have been rotated to 150mhz. 04:15 : Started setup for 157 mhz default pulsar setup. 04:30 : Started IF power eq at 1000counts. 05:13 : Started scan for phasing. 05:50 : Started scan on pulsar B1237+25 for 45 min. 05:50 : Started scan on pulsar B1133+16' 06:48 : Stopped scan. 08:19 : Started scan on pulsar B1919+21. 09:15 : Stopped scan and observing session over. ---------------------------------------------