GTAC Observation Log 1. Date : 07/02/2021 2. Observation Sr. No. : 12882 3. Observer : BHAL CHANDRA JOSHI, Yashwant Gupta, Manjari Bagchi, Gopakumar Achamveedu, Shantanu Desai, Prabu Thiagaraj, Abhimanyu Susobhanan, Dhruv Pathak, LANKESWAR DEY, Jaikhomba Singha, Arpita Choudhary, Neelam Dhanda Batra, Krishnakumar MA, Yogesh Maan, Mayuresh Surnis, Suryarao Bethapudi, ARUN KUMAR NAIDU, SAICHAITANYA SUSARLA, Avishek kumar Basu, Nobleson Kunjappy, Raghav Prafulla Girgaonkar, Kishalay De, Periasamy K. Manoharan 4. Observer\'s Email : bcj@ncra.tifr.res.in, ygupta@ncra.tifr.res.in, manjari.bagchi@gmail.com, gopu.tifr@gmail.com, shntn05@gmail.com, prabu@rri.res.in, s.abhimanyu@tifr.res.in, pathakdhruv9786@gmail.com, LANKY441@GMAIL.COM, mjaikhomba@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, nobleson.phy@gmail.com, ep17btech11016@iith.ac.in, kde@caltech.edu, mano@ncra.tifr.res.in 5. Project Name : Indian Pulsar Timing Array (InPTA) experiment using the upgraded wideband GMRT : 2020 Second Update 6. Project Code : 39_013 7. Operator(s) : Deepak, Pramod, Rupsing, Shilpa 8. Command File : /data1/gtac/cmd/39_013/07feb21/07feb2021.py 9. LTA File : /gwbifrdata/07feb/39_013_07feb2021_gwb_b5.lta, /gwbifrdata2/07feb/39_013_07feb2021_gwb_b3.lta 10. LogFlag File : ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1409 MHz ,RF2 : 1409 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1460 MHz, ILO2 : 1460MHz , 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/TGC 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) : 1409 1409 1460 1460 51 51 30. Integration Time : 4.0265 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. S01 and W04 : RFI 33. Note for Backup : 34. Start and End Time of Obs.(IST): 07 Feb 2021 05:00:00 - 07 Feb 2021 12:50:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :25 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------------------------------------------------- GPU_MODE : Realtime GPU_LTA : 8 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200 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 : 0.000000 0.000000 GPU_SB3 : 1 1 GCODE3 : 39_013B GPU_RF4 : 1460 1460 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 39_013A GPU_CNTRL : ONLINE/TGC GPU_FSTOP : ON GPU_BEAM_1 : PA GPU_BEAM_2 : VOLTAGE GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 8 GPU_GAINEQ : ON GPU_TPA : TGC tpa GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF GPU_PFB : OFF GPU_PFB_TAPS : 16 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_ENV : RELEASED -------------------------------------------------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C04 C05 C10 C13 E02 E03 E04 S02 S03 S04 W01 W02 W03 Total=14 # BEAM-1:175 :: C00 C04 C05 C10 C13 E02 E03 E04 S02 S03 S04 W01 W02 W03 Total=14 # BEAM-2:130 :: C01 C02 C06 C08 C09 C11 C12 C14 Total=8 # BEAM-2:175 :: C01 C02 C06 C08 C09 C11 C12 C14 Total=8 -------------------------------------------------------------------------- Suba 4 # Band 5 # C00 C04 C05 C10 C13 E02 E03 E04 S01 S02 S03 S04 W01 W02 W03 W04 -------------------------------------------------------------------------- Suba 3 # Band 3 # C01 C02 C06 C08 C09 C11 C12 C14 -------------------------------------------------------------------------- 05:30 : Setup done. -------------------------------------------------------------------------- 05:40 : Started command file. /data1/gtac/cmd/39_013/07feb21/07feb2021.py ---------------------------------------------------------------------- 05:54 : C02 frequently applying brakes, so removed from GAC. 08:04 : C02 started working, so added in GAC. 10:30 : C06 taken for painting, so removed from GAC. W02 not tracking, so removed from GAC. 11:32 : W02 started tracking, so added in GAC. 12:22 to 12:35 : Bad records in only interferometry data (Pulsar data ok in both suba-array). 12:35 : Scan no. 23 bad, for both suba-array. 12:40 : W02 not tracking, so removed from GAC. 12:50 : Stopped command file and observing session over. -------------------------------------------------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C04 C05 C10 C13 E02 E03 E04 S02 S03 S04 W01 W03 Total=13 # BEAM-1:175 :: C00 C04 C05 C10 C13 E02 E03 E04 S02 S03 S04 W01 W03 Total=13 # BEAM-2:130 :: C01 C02 C08 C09 C11 C12 C14 Total=7 # BEAM-2:175 :: C01 C02 C08 C09 C11 C12 C14 Total=7 --------------------------------------------------------------------------