GTAC Observation Log 1. Date : 26/01/2023 2. Observation Sr. No. : 15058 3. Observer : Pratik Tarafdar, BHAL CHANDRA JOSHI, Yogesh Maan, Yashwant Gupta, Gopakumar Achamveedu, Manjari Bagchi, Shantanu Desai, Prabu Thiagaraj, Jaikhomba Singha, Aman Srivastava, SAICHAITANYA SUSARLA, Nobleson Kunjappy, Subhajit Dandapat, Shinnosuke Hisano, Arul Pandian, Abhimanyu Susobhanan, Lankeswar Dey, Neelam Dhanda Batra, Krishnakumar MA, Prerna Rana, Mayuresh Surnis, ARUN KUMAR NAIDU, Avishek kumar Basu, Raghav Prafulla Girgaonkar, Kishalay De, Periasamy K. Manoharan, Nikita Agarwal, Tomonosuke Kikunaga, Adarsh Bathula, Keitaro Takahashi, Neel Kolhe, Piyush Marmat, Ryo Kato, Paramasivan Arumugam, Suryarao Bethapudi, Arpita Choudhary, Dhruv Pathak, Avinash Kumar Kumar Paladi, Divyansh Kharbanda, SARMISTHA BANIK, Vanshaj Kerni, Sreejita Das, Arumugam Swetha, Churchil Dwivedi 4. Observer\'s Email : pratikta16@gmail.com, bcj@ncra.tifr.res.in, maan@astron.nl, ygupta@ncra.tifr.res.in, gopu.tifr@gmail.com, manjari.bagchi@gmail.com, shntn05@gmail.com, prabu@rri.res.in, mjaikhomba@gmail.com, amnsrv1@gmail.com, saichaitanya16@iisertvm.ac.in, nobleson.phy@gmail.com, subhajit.phy97@gmail.com, 145s3023hs@gmail.com, arulpandian05101995@gmail.com, s.abhimanyu@tifr.res.in, LANKY441@GMAIL.COM, neelam.dhanda@gmail.com, kk.ambalappat@gmail.com, prerna.rana92@gmail.com, mayuresh.surnis@mail.wvu.edu, arun@ncra.tifr.res.in, avishek@ncra.tifr.res.in, ep17btech11016@iith.ac.in, kde@caltech.edu, mano@ncra.tifr.res.in, nikitaagar2503@gmail.com, amqmysuto@gmail.com, abathula8055@gmail.com, keitaro@kumamoto-u.ac.jp, kolhe.sci@gmail.com, pmarmat@ph.iitr.ac.in, rkato@sci.osaka-cu.ac.jp, p.arumugam@gmail.com, ep14btech11008@iith.ac.in, arp.astro@gmail.com, pathakdhruv9786@gmail.com, avinashkumarpaladi@gmail.com, ep19btech11002@iith.ac.in, sarmistha.banik@hyderabad.bits-pilani.ac.in, vkerni@ph.iitr.ac.in, i19ph017@phy.svnit.ac.in, ee20btech11005@iith.ac.in, churchildwivedi4@gmail.com 5. Project Name : Indian Pulsar Timing Array (InPTA) experiment using the upgraded wideband GMRT : Update July 2022 6. Project Code : 43_020 7. Operator(s) : Deepak, Shriram 8. Command File : /data1/gtac/cmd/43_020/43_020_26Jan2023_1800_cmd.py 9. LTA File : /gwbifrdata1/26jan/43_020_26jan2023_gwb.lta 10. LogFlag File : 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/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) : 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) : C04 : Servo problem 33. Note for Backup : 34. Start and End Time of Obs.(IST): 26 Jan 2023 18:00:00 - 26 Jan 2023 22:00:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :29 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 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_RF4 : 500 500 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : -1 -1 GCODE4 : 43_020 GPU_CNTRL : ONLINE/TGC GPU_FSTOP : ON GPU_BEAM_1 : OFF GPU_BEAM_2 : VOLTAGE GPU_BEAM_3 : PA GPU_BEAM_4 : OFF GPU_BM_INT : 16 GPU_GAINEQ : ON GPU_TPA : From online/TGC tpa GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF GPU_PFB : OFF GPU_PFB_TAPS : 4 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_WALSH : OFF GPU_ENV : RELEASED -------------------------------------------------------------------------- # GWB GAC configuration is as follows : # BEAM-2:130 :: C00 C01 C02 C03 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W03 W04 W05 W06 Total=29 # BEAM-2:175 :: C00 C01 C02 C03 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W03 W04 W05 W06 Total=29 # BEAM-3:130 :: C00 C01 C02 C03 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W03 W04 W05 W06 Total=29 # BEAM-3:175 :: C00 C01 C02 C03 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W03 W04 W05 W06 Total=29 -------------------------------------------------------------------------- 18:05 : Started command file, \'/data1/gtac/cmd/43_020/43_020_26Jan2023_1800_cmd.py\' 18:30 : GAC changed as per instructions from observer. ------------------------------------------------------------------------- # GWB GAC configuration is as follows : # BEAM-2:130 :: C00 C01 C02 C03 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 W01 W02 Total=19 # BEAM-2:175 :: C00 C01 C02 C03 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 W01 W02 Total=19 # BEAM-3:130 :: C00 C01 C02 C03 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 W01 W02 Total=19 # BEAM-3:175 :: C00 C01 C02 C03 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 W01 W02 Total=19 -------------------------------------------------------------------------- 20:20- 20:30 : AS target source was not up, waited for 10 min. Resumed command file at 20:30 22:04 : Command file stopped and observation session over.