GTAC Observation Log 1. Date : 01/11/2015 2. Observation Sr. No. : 8133 3. Observer : Susanta Kumar Bisoi, Yihua Yan, Janardhan Padmanabhan, Linjie Chen, claude mercier, gilbert chambe, Prasad Subramanian, Subramaniam Ananthakrishnan 4. Observer's Email : susanta@nao.cas.cn, yyh@nao.cas.cn, jerry@prl.res.in, ljchen@nao.cas.cn, claude.mercier@obspm.fr, gilbert.chambe@obspm.fr, p.subramanian@iiserpune.ac.in, subra.anan@gmail.com 5. Project Name : Investigation of Solar Noise Storms and Radio Bursts Using Simultaneous GMRT and CSRH Observations 6. Project Code : 29_041 7. Operator(s) : Nilesh, Pramod 8. Command File : /odisk/gtac/cmd/29_041/01nov15_610.cmd 9. LTA File : /gsbifrdata/01nov/29_041_01nov2015_2s.lta, /gsbifrdata/01nov/29_041_01nov2015_16s.lta 10. LogFlag File : /odisk/online1/logflags/29_041.FLAGS.9, /odisk/online1/logflags/29_041.FLAGS.8, /odisk/online1/logflags/29_041.FLAGS.7, /odisk/online1/logflags/29_041.FLAGS.6, /odisk/online1/logflags/29_041.FLAGS.5, /odisk/online1/logflags/29_041.FLAGS.4 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 602 MHz ,RF2 : 602 MHz, SA1 : 30 dB, SA2 : 30 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540MHz , IVLO1 : 62 MHz, IVLO2 : 62 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 24+4 dB, 16 MHz,OFF, IF-CH2 : 24+4 dB, 16 MHz,OFF GSB SETTINGS : 14. GSB Host : gsbm1_shivneri 15. GSB Mode : Realtime 16. GSB LTA : 8 17. GSB CTRL : ONLINE 18. GSB Fstop : ON 19. GAIN EQ : OFF 20. Stokes : Total_Intensity 21. Beam - 1 : OFF 22. Beam - 2 : OFF 23. ACQ BW : 16.666666 MHz 24. Final BW : 16.666666 MHz; Step # 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 138 28. LO5 -2 : 167 29. Frequency Parameters (TPA) : 602 602 540 540 62 62 30. Integration Time : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : C00 : Feed cage painting. W01 : Painting. W04 : MCM 5 timeout. E02 : Maintenance. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 01 Nov 2015 10:00:00 - 01 Nov 2015 18:00:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :27 37. Comments (During Observations) : 09:00 : Started settings. 09:20 : Started power equalization on SUN. Noticed that, there is problem with the GSB mode to record with 0.5 sec integration. In MATMON it shows that the values as 'nan'(both self and cross). which is not expected. tried restarting several times, but did not worked for GSB LTA = 4, for GSB LTA = 8 its working fine. So, continued observation with lta2 = 2 sec and 16 sec integration. 10:18 : Started scan on 3C147 for ~ 15 min. 10:35 : Started command file. 10:50 : Around 10:55 found that settings for RF with 30 dB and RF with 0 dB are not switching, . so restarted power equalization on SUN again. Stopped command file.hence power levels are not as expected 11:16 : Started scan on 3C286 for ~ 16 min. 11:25 : W04 released for observation, and started working. 11:35 : Started command file. '/odisk/gtac/cmd/29_041/01nov15_610.cmd' 16:32 : Stopped command file on phase cal. 16:33 : Started scan on 3C286. 16:47 : Stopped scan and observation session is over.