GTAC Observation Log 1. Date : 28/05/2017 2. Observation Sr. No. : 9437 3. Observer : Abhirup Datta, Nirupam Roy, Prasun Dutta, samir choudhuri, Somnath Bharadwaj, Huib T Intema, Saiyad Ali, Jayaram Narayanan Chengalur, Kanan Kumar Datta, Abhik Ghosh, TirthankarRoy Choudhury, Suman Majumdar, Shiv Sethi, Srijita Pal, Preetha Saha, Arnab Chakraborty, Madhurima Choudhury 4. Observer's Email : Abhirup.Datta@iiti.ac.in, roy.nirupam@gmail.com, pdutta.phy@itbhu.ac.in, samir.svc@gmail.com, somnath@phy.iitkgp.ernet.in, intema@strw.leidenuniv.nl, saiyad@phys.jdvu.ac.in, chengalur@ncra.tifr.res.in, kanan.physics@presiuniv.ac.in, ghosh@astro.rug.nl, tirth@hri.res.in, s.majumdar@imperial.ac.uk, shiv.sethi09@gmail.com, srijitapal.phy@gmail.com, preethasaha06@gmail.com, phd1601121009@iiti.ac.in, phd1601121002@iiti.ac.in 5. Project Name : Characterizing Foregrounds in 21cm Cosmology Observations: Pilot Study with the uGMRT at 250-500 MHz 6. Project Code : 32_120 7. Operator(s) : Pramod 8. Command File : /odisk/gtac/cmd/32_120/27may2017/obs.txt 9. LTA File : /gsbifrdata1/27may/32_120_27may2017.lta, /gwbifrdata1/27may/32_120_27may2017_gwb.lta 10. LogFlag File : /odisk/online1/logflags/32_120.FLAGS.5, /odisk/online1/logflags/32_120.FLAGS.4, /odisk/online1/logflags/32_041.FLAGS.2 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 255 MHz, ILO2 : 255MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 32 MHz,ON, IF-CH2 : 4+14 dB, 32 MHz,ON 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 : ON 20. Stokes : Full_Stokes 21. Beam - 1 : OFF 22. Beam - 2 : OFF 23. ACQ BW : 33.333333 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 306 306 255 255 51 51 30. Integration Time : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :29 32. Name of Non-Working Antennas (with reason for each) : C14 : Taken for mechanical work 33. Note for Backup : 34. Start and End Time of Obs.(IST): 27 May 2017 23:00:00 - 28 May 2017 06:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :29 37. Comments (During Observations) : 23:00 : Started set up. 23:23 : Started scan on 3C286. 23:38 : Stopped scan and started command file. '/odisk/gtac/cmd/32_120/27may2017/obs.txt' 05:45 : stopped command file. 05:50 : Started scan on 3C48. 06:07 : Stopped scan and observation session is over.