GTAC Observation Log 1. Date : 03/11/2018 2. Observation Sr. No. : 10621 3. Observer : Yashwant Gupta, BHAL CHANDRA JOSHI, Manjari Bagchi, Sushan Konar, Biplab Bijay, Mayuresh Surnis, Debades Bandyopadhyay, Dipankar Bhattacharya, Avinash Anant Deshpande, Biprateep Dey, Vishal R Gajjar, Sanjay S. Kudale, Yogesh Maan, Alak Ray, Boris Sindhu Kalita, Sajad Ahmad Bhat, Gururaj Wagle, Gaurav Waratkar, SATYAM CHANDRA MISHRA 4. Observer's Email : ygupta@ncra.tifr.res.in, bcj@ncra.tifr.res.in, manjari.bagchi@gmail.com, sushan@ncra.tifr.res.in, biplab@ncra.tifr.res.in, mpsurnis@ncra.tifr.res.in, debades.bandyopadhyay@saha.ac.in, dipankar@iucaa.in, desh@rri.res.in, biprateep.d@niser.ac.in, gajjar@ncra.tifr.res.in, ksanjay@gmrt.ncra.tifr.res.in, maan@astron.nl, akr@tifr.res.in, boris.kalita@ncra.tifr.res.in, sajadtarigami@gmail.com, guru.w84@gmail.com, gauravwaratkar24@gmail.com, satyam.mishra@niser.ac.in 5. Project Name : Survey for Pulsars and Fast Transients with the upgraded GMRT : Pilot follow-up 6. Project Code : 35_040 7. Operator(s) : Nilesh, Pramod, Surender 8. Command File : /odisk/gtac/cmd/35_040/35_040_2018-11-03.cmd 9. LTA File : /gwbifrdata2/03nov/35_040_03nov2018_gwb.lta 10. LogFlag File : /odisk/online1/logflags/35_040.FLAGS.1 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540MHz , 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 : Total_Intensity 21. Beam - 1 : OFF 22. Beam - 2 : OFF 23. ACQ BW : 33.333333 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 591 591 540 540 51 51 30. Integration Time : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :28 32. Name of Non-Working Antennas (with reason for each) : C14 : Servo problem. E03 : Servo problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 03 Nov 2018 12:00:00 - 03 Nov 2018 19:02:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :28 37. Comments (During Observations) : 12:00 : Started settings. ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : -1 -1 GCODE4 : 35_040 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : IA GPU_BEAM_2 : OFF GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 8 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- 12:02 : Electrical power failure. 12:07 : Electrical power glitch, Antennas C02,C04,E03,S03,W01 got ABC time out and resets after power failure. 12:15 : Restarted settings. # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 E02 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W04 W05 W06 Total=27 # BEAM-1:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 E02 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W05 W06 Total=26 12:28:18 : Started scan on 3C286 for ~ 1.52113 min. 12:29:57 : Started scan on 3C286 for ~ 1.92379 min. 12:32:42 : Started scan on 3C286 for ~ 1.74483 min. 12:40 : Started command file. /odisk/gtac/cmd/35_040/35_040_2018-11-03.cmd 14:48 : W03 relaed from servo 18:45 : Stopped command file. 18:51:05 : Started scan on 3C48OFF for ~ 2.14748 min. 18:54:04 : Started scan on 3C48 for ~ 3.57914 min. 18:58:41 : Started scan on 3C48OFF for ~ 3.40018 min. 19:02:00 : Stopped scan and observing session over.