GTAC Observation Log 1. Date : 01/06/2013 2. Observation Sr. No. : 6522 3. Observer : Mayuresh Surnis, B. C. Joshi. 4. Observer's Email : mpsurnis@gmrt.ncra.tifr.res.in,bcj@gmrt.ncra.tifr.res.in 5. Project Name : Deep radio study towards the supernova remnants/TeV sources G22.7-00.2/HESS J1832-093 and G25.5+0.0/HESS J1837-069 6. Project Code : 24_038 7. Operator(s) : Navanath, Pramod, 8. Command File : /odisk/gtac/cmd/bcj/24_038.010613.1.cmd, /odisk/gtac/cmd/bcj/24_038.010613.2.cmd, /odisk/gtac/cmd/bcj/24_038.010613.3.cmd 9. LTA File : /gsbifrdata/31may/24_038_01jun2013_s2.lta 10. LogFlag File : /odisk/online1/logflags/24_038.FLAGS.14 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1261 MHz ,RF2 : 1261 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1210 MHz, ILO2 : 1210 MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 24+4 dB, 32 MHz,OFF, IF-CH2 : 24+4 dB, 32 MHz,OFF GSB SETTINGS : 14. GSB Mode : RealTime 15. GSB LTA : 8 16. GAIN EQ : ON 17. Stokes : Total_Intensity 18. Beam - 1 : IA 19. Beam - 2 : PA 20. ACQ BW : 32 MHz 21. Maximum Channels : 512 22. IFBW (MHz) : LO5 (KHz) : 32:149000-156000 23. Final Bandwidth (MHz): OFF MHz; Step # 0 24. Frequency Parameters (TPA) : 1261 1261 1210 1210 51 51. 25. Integration Time : 8.053 Sec. 26. No of Antennas Working(Fringing) :29 27. Name of Non-Working Antennas (with reason for each) : E03 : BLDC work. . 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 22:00 - 06:06 30. ONLINE Machine : Shivneri 31. Comments (During Observations) : node33:/mnt/pulsar/gsbuser/24_038_01jun2013/G25.5+0.0.010613.1294.61us.session2.ia.dat, node34:/mnt/pulsar/gsbuser/24_038_01jun2013/G25.5+0.0.010613.1294.61us.session2.pa.dat -------------------------------------------------------------------------------------- Selection of antennas in GAC BEAM1(IA) : Total 25 : All Central square(14)+W01,W03,W04,W05+E02,E04+S01,S02,S03,S04.S06 BEAM2(PA) : Total 17 : All Central square(14)+W01+E02+S01 --------------------------------------------------------------------------------------------------- 22:00 : Started set-up. 22:10 : Started power eq on 1822-096. 22:14 : Restarted gsb with gain-eq on. 22:17 : Phasing done on 1822-096. 22:26 : Started command file. /odisk/gtac/cmd/bcj/24_038.010613.1.cmd 23:05 : Stopped command file and started new command file. /odisk/gtac/cmd/bcj/24_038.010613.2.cmd 04:30 : Phasing is good because of low RFI. 05:42 : Stopped command file and started following command file,contain phase and flux cal. '/odisk/gtac/cmd/bcj/24_038.010613.3.cmd' 06:06 : Stopped scan and observation session is over.