GTAC Observation Log 1. Date : 05/11/2019 2. Observation Sr. No. : 11564 3. Observer : BHAL CHANDRA JOSHI, Yashwant Gupta, Manjari Bagchi, Gopakumar Achamveedu, Abhimanyu Susobhanan, Dhruv Pathak, LANKESWAR DEY, Shantanu Desai, Arpita Choudhary, Neelam Dhanda Batra, Krishnakumar MA, Yogesh Maan, Mayuresh Surnis, Suryarao Bethapudi, ARUN KUMAR NAIDU, SAICHAITANYA SUSARLA, Avishek kumar Basu, Periasamy K. Manoharan, Kishalay De, Siraprapa Sanpa-arsa, Prabu Thiagaraj 4. Observer's Email : bcj@ncra.tifr.res.in, ygupta@ncra.tifr.res.in, manjari.bagchi@gmail.com, gopu.tifr@gmail.com, s.abhimanyu@tifr.res.in, pathakdhruv9786@gmail.com, LANKY441@GMAIL.COM, shntn05@gmail.com, arp.astro@gmail.com, neelam.dhanda@gmail.com, kk.ambalappat@gmail.com, maan@astron.nl, mayuresh.surnis@mail.wvu.edu, ep14btech11008@iith.ac.in, arun@ncra.tifr.res.in, saichaitanya16@iisertvm.ac.in, avishek@ncra.tifr.res.in, mano@ncra.tifr.res.in, kde@caltech.edu, s.tuck.sanpaarsa@gmail.com, prabu@rri.res.in 5. Project Name : Indian Pulsar Timing Array (InPTA) experiment using the upgraded wideband GMRT and the ORT : 2019 Update 6. Project Code : 37_010 7. Operator(s) : Deepak, Nilesh, Pramod 8. Command File : /odisk/gtac/cmd/37_010/05nov19.cmd 9. LTA File : /gwbifrdata1/05nov/37_010_05nov2019_band5_gwb.lta, /gwbifrdata2/05nov/37_010_05nov2019_band3_gwb.lta 10. LogFlag File : /odisk/online1/logflags/37_010B.FLAGS.3, /odisk/online1/logflags/37_010A.FLAGS.2 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1371 MHz ,RF2 : 1371 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1320 MHz, ILO2 : 1320MHz , 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 : OFF 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) : 1371 1371 1320 1320 51 51 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 : Applied brake C04 : Taken for mechanical work W03 : Front End problem W02 : Feed jammed 33. Note for Backup : 34. Start and End Time of Obs.(IST): 05 Nov 2019 13:00:00 - 05 Nov 2019 19:10:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :23 37. RFI Status : 38. Comments (During Observations) : ------------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 : 1024 GPU_CHAN_NUM : 0:1023:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF3 : 500 500 GPU_DDCLO3 : 0.0000 0.0000 GPU_SB3 : 1 1 GCODE3 : 37_010B GPU_RF4 : 1460 1460 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 37_010A GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : OFF GPU_BEAM_2 : Voltage GPU_BEAM_3 : PA GPU_BEAM_4 : OFF GPU_BM_INT : 4 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- # GWB GAC configuration is as follows : # BEAM-2:130 :: C01 C02 C06 C08 C09 C10 C12 C14 Total=8 # BEAM-2:175 :: C01 C02 C06 C08 C09 C10 C12 C14 Total=8 # BEAM-3:130 :: C03 C05 C11 C13 E02 E03 E04 S01 S02 S03 S04 W01 W04 Total=13 # BEAM-3:175 :: C03 C05 C11 C13 E02 E03 E04 S01 S02 S03 S04 W01 W04 Total=13 # 37_010B # suba 3 # 325MHz # sub 3 # C01 C02 C06 C08 C09 C10 C12 C14 # Beam 2 : Voltage # ante 8 6 5 20 24 4 12 2 10 cp 0;defs 3;subar 3 # 37_010A # Suba 4 # 1420MHz # sub 4 # C00 C03 C04 C05 C11 C13 W01 W02 W03 W04 W05 W06 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 # Beam 3 : PA # ante 22 7 1 3 19 9 11 8 13 14 15 16 25 17 18 21 22 23 26 27 28 29 30 cp 0;defs 4;subar 4 13:00 : Started set up. 13:20 : Power equalized and phasing done on 3C286. 13:25 : Started command file. '/odisk/gtac/cmd/37_010/05nov19.cmd' 17:47 : Electrical power glitch. 17:49 : Anteanns started working execpt C02, C03 and E02. C02 : Not releasing brakes. C03 : ABC time out. E02 : ABC time out. 19:05 : Stopped command file and observations closed.