GTAC Observation Log 1. Date : 07/06/2021 2. Observation Sr. No. : 13168 3. Observer : Sushma Kurapati, Simon Pustilnik, Evgeniya Egorova 4. Observer\'s Email : sushma@ncra.tifr.res.in, sap@sao.ru, eshaldenkova@gmail.com 5. Project Name : HI observations of gas-rich blue/XMP void dwarfs 6. Project Code : 40_083 7. Operator(s) : Nilesh, Shilpa, Shriram 8. Command File : /data1/gtac/cmd/40_083/40_083_07jun.py 9. LTA File : /gsbifrdata1/07jun/40_083_07jaun2021_gsb.lta, /gwbifrdata2/07jun/40_083_07jun2021_gwb.lta 10. LogFlag File : ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1406.6335 MHz ,RF2 : 1406.6335 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1345 MHz, ILO2 : 1345MHz , IVLO1 : 61.6335 MHz, IVLO2 : 61.6335 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 16 MHz,ON, IF-CH2 : 4+14 dB, 16 MHz,ON GSB SETTINGS : 14. GSB Host : gsbm1_shivneri 15. GSB Mode : Realtime 16. GSB LTA : 8 17. GSB CTRL : TGC 18. GSB Fstop : ON 19. GAIN EQ : ON 20. Stokes : Total_Intensity 21. Beam - 1 : OFF 22. Beam - 2 : OFF 23. ACQ BW : 16.666666 MHz 24. Final BW : 4 MHz; Step # 2 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 138.3665 28. LO5 -2 : 166.6335 29. Frequency Parameters (TPA) : 1406.6335 1406.6335 1345 1345 61.6335 61.6335 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :29 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. C11 : No fringe in GSB. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 07 Jun 2021 06:00:00 - 07 Jun 2021 13:40:00 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 : 100.0000 GPU_FINAL_BW : 100 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 8192 GPU_CHAN_NUM : 0:8191:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1450 1450 GPU_DDCLO4 : 0.000000 0.000000 GPU_SB4 : 1 1 GCODE4 : 40_083 GPU_CNTRL : TGC GPU_FSTOP : ON GPU_BEAM_1 : OFF GPU_BEAM_2 : OFF 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 : ON GPU_PFB_TAPS : 4 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_ENV : RELEASED ---------------------------------------------------------------------- 06:00 : Started settings. 06:12 : AGN1 hung. Not responding to commands. 06:30 : Restarted AGN1 and restarted correlator. 06:50 : Power equalized on 3C48 for GWB. 06:52 : \'/data1/gtac/cmd/40_083/40_083_07jun.py\' command file started. 13:10 : Stopped command file. 13:20 : Started scan on 0323+055 for ~ 7.15828 min. 13:32 : Started scan on 3C147 for ~ 7.51619 min. 13:40 : observation closed. NOTE : Extended observation for 30 min to compensate loss in the begining.