GTAC Observation Log 1. Date : 24/11/2020 2. Observation Sr. No. : 12605 3. Observer : Narendra Nath Patra, Nirupam Roy, Prerana Biswas, Mousumi Das, Juliana Saponara 4. Observer\'s Email : naren.ncra@gmail.com, roy.nirupam@gmail.com, prerana.biswas1994@gmail.com, chandaniket@gmail.com, juliana.saponara@gmail.com 5. Project Name : HI observation of dark matter deficient galaxies 6. Project Code : 39_064 7. Operator(s) : Manisha, Sachin, Surender 8. Command File : /data1/gtac/cmd/39_064/obs.py 9. LTA File : /gsbifrdata/24nov/39_064_band4_24nov2020_gsb.lta, /gsbifrdata1/24nov/39_064_24nov2020_gsb.lta.1, /gsbifrdata1/24nov/39_064_24nov2020_gsb.lta, /gwbifrdata1/24nov/39_064_24nov2020_gwb.lta.1, /gwbifrdata1/24nov/39_064_24nov2020_gwb.lta 10. LogFlag File : ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1405.3835 MHz ,RF2 : 1405.3835 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1345 MHz, ILO2 : 1345MHz , IVLO1 : 60.3835 MHz, IVLO2 : 60.3835 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) : 1405.3835 1405.3835 1345 1345 60.3835 60.3835 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. W03 : FPS problem. E06 : No fringe in GSB. S04 : No fringe. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 24 Nov 2020 04:00:00 - 24 Nov 2020 11:00:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :26 37. RFI Status : 38. Comments (During Observations) : Note : 04:00 -07:00 : User lost time due to pointing problem for many antennas, ------------------------------------ gsb_beam2_dataserver,node_34 bandmask,3 gpu_beam4_dataserver,gwbh10 GSB_LTA,8 GPU_FSTOP,1 GPU_PFB,0 GPU_FILRFI,0 GSB_CHAN_NUM,0:255:1 GSB_ACQ_BW,33.333333 GPU_BEAM_1,0:1 GSB_FINAL_BW,0 GPU_PFB_TAPS,16 GSB_ENV,1 gpu_ifr_dataserver,gwbh6 gpu_beam3_dataserver,gwbh9 GPU_CHAN_NUM,0:4095:1 GSB_HOSTS,0 GPU_BEAM_S,0 gsb_ifr_dataserver,gsbm4 GSB_STOKES,2 GPU_DDC,0 GSB_CNTRL,1 GPU_CNTRL,1 gpu_beam2_dataserver,gwbh8 GPU_GAINEQ,1 gsb_beam1_dataserver,node_33 GPU_EDGE_FRQ,0 GSB_BEAM_1,0:1 GPU_BM_INT,128 GSB_BEAM_2,0:1 GPU_BEAM_3,0:1 GPU_BEAM_2,0:1 GSB_FSTOP,1 GPU_CHAN_MAX,4096 GPU_BEAM_4,0:1 corrmask,8 GPU_ENV,1 antennamask,3fffffff GPU_HOSTS,2 GPU_MODE,0 GPU_STOKES,2 GSB_GAINEQ,1 GSB_CD_MODE,0 GSB_CHAN_MAX,256 GPU_TPA,0 GPU_ACQ_BW,200.0000 GPU_LTA,4 GSB_BB_LO,149000000.0:156000000.0 GSB_MODE,0 GPU_FINAL_BW,1 gpu_beam1_dataserver,gwbh7 GPU_BITS,8 ------------------------------- 04:00:00 : Started set-up. 04:32:15 : Started scan on 3C147 for ~ 11.1401 min. 05:01:17 : Started scan on 1254+116 for ~ 6.17401 min. 05:09:34 : Started scan on AGC220901 for ~ 13.0191 min. 05:26:50 : Started scan on 3C286 for ~ 22.4143 min. -------------------------------- Note : 04:00 -06:00 : User lost time due to pointing was not good for many antennas,after consulting with TGC team,restarted pointing. ----------------------------------------------------------------------- 06:00:00 : Started pointing. 06:40:00 : Pointing done and restarted line set-up. ----------------------------------------------------------------------- 06:55:10 : Started scan on 3C286 for ~ 27.112 min. 07:27:56 : Restarted command file. /data1/gtac/cmd/39_064/obs.py 07:28:06 : Started scan on 1254+116 for ~ 6.17401 min. 07:36:20 : Started scan on AGC220901 for ~ 45.0971 min. 08:23:13 : Started scan on 1254+116 for ~ 6.03979 min. 08:31:03 : Started scan on AGC220901 for ~ 45.0971 min. 09:18:37 : Started scan on 1254+116 for ~ 6.03979 min. 09:27:07 : Started scan on AGC220901 for ~ 45.0971 min. 10:13:58 : Started scan on 1254+116 for ~ 6.17401 min. 10:21:50 : Started scan on AGC220901 for ~ 21.2064 min. 10:45:45 : Started scan on 1254+116 for ~ 6.17401 min. 10:55:28 : Started scan on 3C286 for ~ 10.2005 min. Note : for GSB settings please see the above settings.