GTAC Observation Log 1. Date : 08/07/2019 2. Observation Sr. No. : 11229 3. Observer : Ruta Kale, Joydeep Bagchi, Shishir Sankhyayan, Pratik Dabhade, C.H. IshwaraChandra, Luis C Ho, Huib T Intema, Kshitij Thorat, Somak Raychaudhury, Wendy Williams, Srikrishna Sekhar 4. Observer's Email : ruta@ncra.tifr.res.in, joydeep@iucaa.in, shishir9898@gmail.com, pratikdabhade13@gmail.com, ishwar@ncra.tifr.res.in, lho.pku@gmail.com, intema@strw.leidenuniv.nl, thorat.k@gmail.com, somak@iucaa.in, wwilliams@strw.leidenuniv.nl, srikrishna@idia.ac.za 5. Project Name : Galaxy Evolution and Magnetization in the Saraswati Supercluster (GEMSS): A deep uGMRT Survey of the entire supercluster 6. Project Code : 36_021 7. Operator(s) : Deepak, Navnath, Nilesh, Shilpa 8. Command File : /odisk/gtac/cmd/36_021/08july-P32-33.cmd 9. LTA File : /gsbifrdata1/08jul/36_021_08jul2019_gsb.lta, /gwbifrdata2/08jul/36_021_08jul2019_gwb.lta 10. LogFlag File : /odisk/online1/logflags/36_021.FLAGS 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 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 :26 32. Name of Non-Working Antennas (with reason for each) : C05 : servo problem C06 : servo problem W06 : ABC time out S06 : ABC time out 33. Note for Backup : 34. Start and End Time of Obs.(IST): 08 Jul 2019 01:00:00 - 08 Jul 2019 07:30:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :26 37. Comments (During Observations) : ------------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 : 4096 GPU_CHAN_NUM : 0:4095:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 500 500 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 36_021 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 : Voltage Detection GPU_BEAM_S : OFF ------GWB RFI Filter Setting---------------------------------------------- FILTERED_SIGNALS : RFI_ALL # RFI_ALL=All signals filtered / RFI_CH1 =Channel 1 only / RFI_CH2=Channel 2 only EXTERNAL MEDIAN : 0 # integer value(-128 to 127) THRESHOLD VALUE : 3 # integer value(0 to 127) CONSTANT VALUE : 0 # integer value(-128 to 127) FILTERING OPTION : DIGITAL NOISE # BYPASS / CONSTANT=constant value is used / THRESHOLD / DIGITAL_NOISE DDC_STATUS : OFF # DDC = ON/OFF -------------------------------------------------------------------------- 01:00 : Started setup 01:14 : Started command file. 04:16 : S06 started working. 04:16 to 04:21 : Satellite observed. 04:35 to 05:09 : Satellite observed. 05:19 to 05:30 : Satellite observed. 05:33 : S06 ABC timeout. 07:05 : Stopped command file. 07:11 : Started scan on 3C48. 07:26 : Stopped scan and observing session over.