GTAC Observation Log 1. Date : 12/05/2019 2. Observation Sr. No. : 11065 3. Observer : Cathy Horellou, Konstantinos Kolokythas, Huib T Intema, Mark Birkinshaw, Florian Pacaud, Marguerite Pierre, Somak Raychaudhury, Huub Rottgering, Vernesa Smolcic 4. Observer's Email : Cathy.Horellou@chalmers.se, kkolok@iucaa.in, intema@strw.leidenuniv.nl, Mark.Birkinshaw@bristol.ac.uk, pacaud@astro.uni-bonn.de, mpierre@discovery.saclay.cea.fr, somak@iucaa.in, rottgering@strw.leidenuniv.nl, vs@phy.hr 5. Project Name : Double irony in XXL-North: spectral aging and polarization in a giant radio galaxy 6. Project Code : 36_091 7. Operator(s) : Pramod, Shilpa 8. Command File : /odisk/gtac/cmd/36_091/obs.cmd 9. LTA File : /gsbifrdata/12may/36_091_12may2019_gsb.lta, /gwbifrdata2/12may/36_091_12may2019_gwb.lta 10. LogFlag File : /odisk/online1/logflags/36_091.FLAGS ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540MHz , 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 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) : 591 591 540 540 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) : C01 : Servo problem 33. Note for Backup : 34. Start and End Time of Obs.(IST): 12 May 2019 07:00:00 - 12 May 2019 11:22:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :29 37. Comments (During Observations) : ------------GSB Setting--------------------------------------------------- GSB_MODE : Realtime GSB_LTA : 8 GSB_ACQ_BW : 33.333333 GSB_FINAL_BW : 0 GSB_EDGE_FRQ : 0 GSB_CHAN_MAX : 256 GSB_CHAN_NUM : 0:255:1 GSB_STOKES : Full_Stokes GSB_CNTRL : ONLINE GSB_FSTOP : ON GSB_BEAM_1 : OFF GSB_BEAM_2 : OFF GSB_GAINEQ : ON GSB_BB_LO : 149:156 GSB_HOSTS : gsbm1_shivneri undefined : OFF undefined : 306 -------------------------------------------------------------------------- ------------GWB Setting--------------------------------------------------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Full_Stokes GPU_SIDEBAND : 1 1 GPU_RF4 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : -1 -1 GCODE4 : 36_091 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : OFF GPU_BEAM_2 : OFF GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 128 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------------------------------------------------- Note : In GSB full Stokes with 32MHz, 512 channels shows buffer loss, so GSB started in full stokes with 32MHz, 256 channels. -------------------------------------------------------------------------- 06:50 : Started set up. 07:14 : Started scan on 3C48. 07:29 : Stopped scan and started command file. '/odisk/gtac/cmd/36_091/obs.cmd' 08:37 : E06 applied elevation brakes. 09:10 : E06 started working. 11:01 : Stopped command file. 11:07 : Started scan on 3C48. 11:22 : Stopped scan and observing session over.