GTAC Observation Log 1. Date : 18/02/2019 2. Observation Sr. No. : 10902 3. Observer : Mukul Pradeep Mhaskey, Gopal krishna, Surajit Paul, Pratik Dabhade 4. Observer's Email : mhamu3@gmail.com, gopaltani@gmail.com, surajit@physics.unipune.ac.in, pratikdabhade13@gmail.com 5. Project Name : Towards building a first northern-sky sample of “Extremely Inverted Spectrum Extragalactic Radio Sources (EISERS)” 6. Project Code : 35_010 7. Operator(s) : Sachin 8. Command File : /odisk/gtac/cmd 9. LTA File : /gsbifrdata/18feb/35_010_18feb2019_gsb.lta, /gwbifrdata2/18feb/35_010_18feb2019_gwb.lta 10. LogFlag File : /odisk/online1/logflags/35_010.FLAGS.9 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 156 MHz ,RF2 : 156 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 218 MHz, ILO2 : 218MHz , IVLO1 : 62 MHz, IVLO2 : 62 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_lenyadri 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 : 16.666666 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 138 28. LO5 -2 : 167 29. Frequency Parameters (TPA) : 156 156 218 218 62 62 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : C02 : Taken for painting. C12 : Servo problem. S02 : FE work. S04 : Structural repair. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 18 Feb 2019 11:00:00 - 18 Feb 2019 13:40:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :26 37. Comments (During Observations) : 11:14:45 : Started scan on 3C48 for ~ 9.9321 min. 11:30:08 : Started scan on 1613+3412 for ~ 4.83183 min. 11:54:57 : Started scan on 1658+4732 for ~ 64.9613 min. 13:00 : stopped das and observation session is over.