GTAC Observation Log 1. Date : 06/8/2012 2. Observation Sr. No. : 6072 3. Observer : Aritra Basu, Abhirup Datta 4. Observer's Email : aritra@ncra.tifr.res.in,abhirup.datta@colorado.edu 5. Project Name : Study on Small-Scale Traveling Patterns in the Ionosphere over sunrise with the GMRT 6. Project Code : 22_064 7. Operator(s) : Manisha, Nilesh, Santaji, 8. Command File : /odisk/gtac/cmd/hold.cmd 9. LTA File : /gsbifrdata/06aug/22_064_06aug2012.lta 10. LogFlag File : /odisk/online1/logflags/22_064.FLAGS.2 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 618 MHz ,RF2 : 242 MHz, SA1 : 0 dB, SA2 : 14 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 680 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 : 2 16. GAIN EQ : ON 17. Stokes : Total_Intensity 18. Beam - 1 : OFF 19. Beam - 2 : OFF 20. ACQ BW : 16 MHz 21. Maximum Channels : 128 22. IFBW (MHz) : LO5 (KHz) : 16:138000-167000 23. Final Bandwidth (MHz): OFF MHz; Step # 0 24. Frequency Parameters (TPA) : 618 242 680 304 62 62. 25. Integration Time : 0.503 Sec. 26. No of Antennas Working(Fringing) :26 27. Name of Non-Working Antennas (with reason for each) : C14 : BLDC work. S01 : MCM 5 time out. * C11 : Low fringe at 610 MHz., No fringe @ 235 MHz. (CSIRO feed). * C01 : No fringe @ 235 MHz. 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 01:10 - 11:00 30. ONLINE Machine : Shivneri 31. Comments (During Observations) : 0.5 sec lta file /gsbifrdata1/06aug/22_064_06aug2012_0.5s.lta ------------------------------------------------- 01:10 : setup started. 01:33 : scan started on 3c48. 01:45 : scan started on 3c68.2 03:01 : scan started on 3c48. 03:13 : scan started on 3c68.2 05:46 : E04 frequently applying AZ Brakes. 07:55 : E04 Released AZ Brakes. 07:57 : Started scan on 3c48. 08:09 : Started scan on 3c68.2 08:57 : Started scan on 3c48. 09:08 : Started scan on 3c68.2. 09:55 : Started scan on 3c48. 10:06 : Started scan on 3c68.2 10:23 : Started scan on 3c48. 10:39 : Started scan on 3c68.2. 11:07 : Stopped scan and observation session over.