GTAC Observation Log 1. Date : 12/7/2011 2. Observation Sr. No. : 5442 3. Observer : Alka Mishra 4. Observer's Email : alkam7@gmail.com 5. Project Name : HI and radio continuum observations of Giant Low Surface Brightness galaxies- Interacting or Isolated. 6. Project Code : 20_015 7. Operator(s) : Manisha, Sachin, 8. Command File : /odisk/gtac/cmd/alka/12jul.cmd 9. LTA File : /gsbifrdata/12jul/20_015_12jul2011.lta 10. LogFlag File : /odisk/online1/logflags/20_015.FLAGS.3 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 : 4+12 dB, 32 MHz,ON, IF-CH2 : 4+12 dB, 32 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 : 32 MHz 21. Maximum Channels : 256 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 : 16.106 Sec. 26. No of Antennas Working(Fringing) :29 27. Name of Non-Working Antennas (with reason for each) : C11 - Taken for CSIRO feed work. C09 - 130 Polarisation down. 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 12:00 - 15:00 30. ONLINE Machine : Shivneri 31. Comments (During Observations) : 11:50 : Started scan on 3C147. 12:10 : S02 released from painting work. 12:29 : Started command file. 14:54 : Stopped command file. 14:55 : Started scan on phase cal. 15:00 : Stopped scan. 15:06 : Started scan on 3C147. 15:21 : Stopped scan & observation session over.