GTAC Observation Log 1. Date : 09/5/2011 2. Observation Sr. No. : 5320 3. Observer : Sandeep Sirothia 4. Observer's Email : sirothia@ncra.tifr.res.in 5. Project Name : The GMRT extra-galactic sky survey at 150 MHz - TGSS 6. Project Code : 20_083 7. Operator(s) : Deepak, Santaji, 8. Command File : /odisk/gtac/cmd/sirothia/20_083_20110509a.cmd 9. LTA File : /gsbifrdata/09may/20_083_09may2011.lta 10. LogFlag File : /odisk/online1/logflags/20_083.FLAGS.7 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 156 MHz ,RF2 : 156 MHz, SA1 : 14 dB, SA2 : 14 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 218 MHz, ILO2 : 218 MHz , IVLO1 : 62 MHz, IVLO2 : 62 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 2+28 dB, 16 MHz,ON, IF-CH2 : 2+28 dB, 16 MHz,ON GSB SETTINGS : 14. Maximum Channels : 256 15. Final Bandwidth (MHz): OFF MHz; Step # 4 16. IFBW (MHz) : LO5 (KHz) : 16:138000-167000 17. Stokes : Full_Polar 18. Beam - 1 : OFF 19. Beam - 2 : OFF 20. Frequency Parameters (TPA) : 156 156 218 218 62 62. 21. Integration Time : 16.106 Sec. 22. No of Antennas Working(Fringing) :29 23. Name of Non-Working Antennas (with reason for each) : C09 : strong RFI. W02 : No fringe. 24. Note for Backup :-- 25. Start and End Time of Obs.(IST): 18:00 - 06:52 26. ONLINE Machine : Shivneri 27. Comments (During Observations) : /gsbifrdata1/09may/20_083_09may2011_2s.lta -------------------------------------------------- 17:53 : Started scan on 3C286. 18:24 : Started command file /odisk/gtac/cmd/sirothia/20_083_20110509a.cmd 22:00 : Strong RFI ( many strong lines and almost in all antennas) 01:00 : Strong RFI vanished. 06:07 : stopped the command file. started scan on cal J0218+4232 06:42 : scan started on cal 3c48. 06:52 : stopped the scan and observation over.