GTAC Observation Log 1. Date : 17/5/2011 2. Observation Sr. No. : 5333 3. Observer : Aritra Basu 4. Observer's Email : aritra@ncra.tifr.res.in,paladino@ira.inaf.it 5. Project Name : Low frequency study of cosmic ray properties in star forming galaxies 6. Project Code : 20_064 7. Operator(s) : Nilesh, 8. Command File : /odisk/gtac/cmd/aritra/20_064/20_064_17may.cmd 9. LTA File : /gsbifrdata/17may/20_064_17may2011.lta, /gsbifrdata1/17may/20_064_17may2011_2s.lta 10. LogFlag File : /odisk/online1/logflags/20_064.FLAGS.3 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 : 20+4 dB, 16 MHz,OFF, IF-CH2 : 20+4 dB, 16 MHz,OFF GSB SETTINGS : 14. Maximum Channels : 256 15. Final Bandwidth (MHz): OFF MHz; Step # 0 16. IFBW (MHz) : LO5 (KHz) : 16:138000-167000 17. Stokes : Total_Intensity 18. Beam - 1 : OFF 19. Beam - 2 : OFF 20. Frequency Parameters (TPA) : 156 156 218 218 62 62. 21. Integration Time : 16.106 Sec. 22. No of Antennas Working(Fringing) :28 23. Name of Non-Working Antennas (with reason for each) : C09,W02 : Strong RFI. 24. Note for Backup :-- 25. Start and End Time of Obs.(IST): 18:00 - 23:00 26. ONLINE Machine : Lenyadri 27. Comments (During Observations) : 2s data files :- /gsbifrdata1/17may/20_064_17may2011_2s.lta ---------------------------------------------- 18:00 : Started settings for project. ALC off, Power eq @ 300 counts. 18:23 : Started scan on 3c147 ~10min. 18:38 : Started command file.(continued with the file on 13may). '/odisk/gtac/cmd/aritra/20_064/20_064_17may.cmd'. 20:00 : C09 Started working (RFI persists). 22:43 : Stopped command file. 22:48 : Started scan on 3c286 ~10min. 23:00 : Stopped scan and closed observation session.