GTAC Observation Log 1. Date : 02/01/2013 2. Observation Sr. No. : 6303 3. Observer : Kiran Lakhchaura 4. Observer's Email : kiran_astro@tifr.res.in 5. Project Name : Low-frequency radio observations of the cluster of galaxies A3532 6. Project Code : 23_008 7. Operator(s) : Rupsingh, 8. Command File : /odisk/gtac/cmd/23_008/jan02_obs.cmd 9. LTA File : /gsbifrdata/02jan/23_008_02jan2013.lta 10. LogFlag File : /odisk/online1/logflags/23_008.FLAGS ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 242 MHz ,RF2 : 242 MHz, SA1 : 14 dB, SA2 : 14 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 304 MHz, ILO2 : 304 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 : 512 22. IFBW (MHz) : LO5 (KHz) : 16:138000-167000 23. Final Bandwidth (MHz): OFF MHz; Step # 0 24. Frequency Parameters (TPA) : 242 242 304 304 62 62. 25. Integration Time : 16.106 Sec. 26. No of Antennas Working(Fringing) :28 27. Name of Non-Working Antennas (with reason for each) : W05 : MECH maintenance. S01 : BLDC 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 02:00 - 10:00 30. ONLINE Machine : Lenyadri 31. Comments (During Observations) : 02:18: Started scan on 3C286. 02:40: Stopped scan. 02:43: started scan on 1154-350. 03:00: stopped scan. 03:03: Started command file. 07:27 : C12 Servo tracking problem. 08:49 : C08 taken for painting work. 08:57 : Stopped command file and started scan on 1154-350 for ~5min. 09:04 : Started scan on A3532. 09:05 : E02 taken for painting work. 09:42 : stopped scan on A3532. 09:47 : Started scan on 3c286 for ~15min. 10:04 : Stopped scan and closed observation session.