GTAC Observation Log 1. Date : 21/4/2013 2. Observation Sr. No. : 6459 3. Observer : Sawant, Susanta 4. Observer's Email : hssawant@gmail.com,susanta@prl.res.in 5. Project Name : Solar obsevation 6. Project Code : 24_027 7. Operator(s) : Deepak, Pramod, Surender 8. Command File : /odisk/gtac/cmd/jerry/21apr13/1280.cmd 9. LTA File : /gsbifrdata1/21apr/24_027_21apr2013_2s.lta, 10. LogFlag File : /odisk/online1/logflags/24_027.FLAGS.1 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1272 MHz ,RF2 : 1272 MHz, SA1 : 30 dB, SA2 : 30 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1210 MHz, ILO2 : 1210 MHz , IVLO1 : 62 MHz, IVLO2 : 62 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 24+4 dB, 16 MHz,ON, IF-CH2 : 24+4 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 : 128 22. IFBW (MHz) : LO5 (KHz) : 16:138000-167000 23. Final Bandwidth (MHz): OFF MHz; Step # 0 24. Frequency Parameters (TPA) : 1272 1272 1210 1210 62 62. 25. Integration Time : 2.013 Sec. 26. No of Antennas Working(Fringing) :24 27. Name of Non-Working Antennas (with reason for each) : C04 : Node 32A -31B repairing work. C13 : Frequently getting ABC reset. C08 : no fringe(LO unlock) W05 : No fringe W06 : freq. applying az. brake S01-130 : low fringe. 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 09:00 - 18:00 30. ONLINE Machine : Shivneri 31. Comments (During Observations) : /gsbifrdata1/21apr/24_027_21apr2013_0.5s.lta --------------------------------------------- 09:00 : Started setup. 09:55 : Started command file. 11:32 : W06 started working. 11:50 : C09 taken for painting. 17:39 : Stopped command file. 17:42 : Started scan on 3C147. 18:00 : Stopped scan & observing session is over.