GTAC Observation Log 1. Date : 28/12/2021 2. Observation Sr. No. : 13799 3. Observer : BHAL CHANDRA JOSHI, Yashwant Gupta, Yogesh Maan, Gopakumar Achamveedu, Manjari Bagchi, Shantanu Desai, Prabu Thiagaraj, Abhimanyu Susobhanan, Dhruv Pathak, Lankeswar Dey, Jaikhomba Singha, Arpita Choudhary, Neelam Dhanda Batra, Krishnakumar MA, Mayuresh Surnis, Suryarao Bethapudi, ARUN KUMAR NAIDU, SAICHAITANYA SUSARLA, Avishek kumar Basu, Nobleson Kunjappy, Raghav Prafulla Girgaonkar, Kishalay De, Periasamy K. Manoharan, Subhajit Dandapat, Nikita Agarwal, Tomonosuke Kikunaga, Arul Pandian, Adarsh Bathula, Keitaro Takahashi, Neel Kolhe, Piyush Marmat, Pratik Tarafdar, Prerna Rana, Ryo Kato, Shinnosuke Hisano, Paramasivan Arumugam 4. Observer\'s Email : bcj@ncra.tifr.res.in, ygupta@ncra.tifr.res.in, maan@astron.nl, gopu.tifr@gmail.com, manjari.bagchi@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, 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, subhajit.phy97@gmail.com, nikitaagar2503@gmail.com, amqmysuto@gmail.com, arulpandian05101995@gmail.com, abathula8055@gmail.com, keitaro@kumamoto-u.ac.jp, kolhe.sci@gmail.com, pmarmat@ph.iitr.ac.in, pratikta16@gmail.com, prerna.rana92@gmail.com, rkato@sci.osaka-cu.ac.jp, 145s3023hs@gmail.com, p.arumugam@gmail.com 5. Project Name : Indian Pulsar Timing Array (InPTA) experiment using the upgraded wideband GMRT : Update 6. Project Code : 41_023 7. Operator(s) : Navnath, Sachin, Shriram 8. Command File : /data1/gtac/cmd/41_023/27dec/obs.py 9. LTA File : /gwbifrdata1/27dec/41_023_27dec2021_band3_sub3_gwb.lta, /gwbifrdata2/27dec/41_023_27dec2021_band5_sub4_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 : 4.0265 Sec 31. No of Antennas Working(Fringing) at the beginning :29 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 27 Dec 2021 19:50:00 - 28 Dec 2021 00:06:00 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_RF3 : 500 500 GPU_DDCLO3 : 0.000000 0.000000 GPU_SB3 : 1 1 GCODE3 : 41_023B GPU_RF4 : 1460 1460 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 41_023A 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 : 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-1:130 :: C00 C04 C05 C10 C13 E02 E03 E04 S01 S02 S03 S04 W01 W02 W03 W04 Total=16 # BEAM-1:175 :: C00 C04 C05 C10 C13 E02 E03 E04 S01 S02 S03 S04 W01 W02 W03 W04 Total=16 # 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 ----------------------------------------------------------------------- 19:50 : Started settings. 20:14 : Phasing done on 3C48. 20:15:03 : Started command file, \'/data1/gtac/cmd/41_023/27dec/obs.py\' 23:57:51 : Started scan on 3C147 for ~ 2.058 min. 00:00:21 : Started scan on 3C147 for ~ 1.43165 min. 00:03:18 : Started scan on 3C147OFF for ~ 1.34218 min. 00:06:00 : Observation session closed. -------------------------------------------------------