GTAC Observation Log 1. Date : 18/10/2011 2. Observation Sr. No. : 5573 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 : 21_057 7. Operator(s) : Nilesh, Rupsingh, Santaji, 8. Command File : /odisk/gtac/cmd/sirothia/21_057_20111018a.cmd 9. LTA File : /gsbifrdata/18oct/21_057_18oct2011.lta 10. LogFlag File : /odisk/online1/logflags/21_057.FLAGS 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 : 10+12 dB, 16 MHz,ON, IF-CH2 : 10+12 dB, 16 MHz,ON GSB SETTINGS : 14. GSB Mode : RealTime 15. GSB LTA : 8 16. GAIN EQ : ON 17. Stokes : Total_Intensity 18. Beam - 1 : OFF 19. Beam - 2 : OFF 20. ACQ BW : 16 MHz 21. Maximum Channels : 256 22. IFBW (MHz) : LO5 (KHz) : 16:138000-167000 23. Final Bandwidth (MHz): OFF MHz; Step # 0 24. Frequency Parameters (TPA) : 156 156 218 218 62 62. 25. Integration Time : 16.106 Sec. 26. No of Antennas Working(Fringing) :26 27. Name of Non-Working Antennas (with reason for each) : C09 : Servo maintenance. S01 : MCM 5 T.O. W04 : MCM 5 T.O. W06 : Elevation limit hit. 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 22:00 - 06:00 30. ONLINE Machine : Lenyadri 31. Comments (During Observations) : 22:25 : Started scan on 3C48. 23:30 : Stopped scan. 23:31 : Started scan on J0218+4232. 23:47 : Stopped scan. 23:58 : Started command file. 05:28 : Stopped command file. 05:31 : Started scan on 3C48. 05:47 : Stopped scan. 05:48 : Started scan on J0218+4232. 06:00 : Stopped scan & observation session over.