GTAC Observation Log 1. Date : 26/03/2018 2. Observation Sr. No. : 10180 3. Observer : Benito Marcote, Yogesh Maan, Roberta Zanin, Dmitry Khangulyan, C.H. IshwaraChandra, Felix A. Aharonian 4. Observer's Email : marcote@jive.eu, maan@astron.nl, Roberta.Zanin@mpi-hd.mpg.de, d.khangulyan@rikkyo.ac.jp, ishwar@ncra.tifr.res.in, Felix.aharonian@mpi-hd.mpg.de 5. Project Name : Discovering the radio nebula associated with Geminga, one of the most energetic gamma-ray pulsar 6. Project Code : 33_007 7. Operator(s) : Navnath, Nilesh, Rupsing, Sachin, Surender 8. Command File : /odisk/gtac/cmd/33_007/25mar18/obs1.txt 9. LTA File : /gsbifrdata1/25mar/33_007_25mar2018.lta, /gwbifrdata/25mar/33_007_25mar2018_gwb.lta, /gwbifrdata1/25mar/33_007_25mar2018_gwb_300lo.lta 10. LogFlag File : /odisk/online1/logflags/33_007.FLAGS.1 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 156 MHz ,RF2 : 156 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 218 MHz, ILO2 : 218MHz , IVLO1 : 62 MHz, IVLO2 : 62 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 : 16.666666 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 138 28. LO5 -2 : 167 29. Frequency Parameters (TPA) : 156 156 218 218 62 62 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :28 32. Name of Non-Working Antennas (with reason for each) : E03 : : RFI. S04 :: RFI. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 25 Mar 2018 14:00:00 - 26 Mar 2018 00:15:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :28 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 : 8192 GPU_CHAN_NUM : 0:8191:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF1 : 1460 1460 GPU_DDCLO1 : 0.0000 0.0000 GPU_SB1 : 1 1 GCODE1 : SUBA1 GPU_RF2 : 1460 1460 GPU_DDCLO2 : 0.0000 0.0000 GPU_SB2 : 1 1 GCODE2 : 33_076B GPU_RF3 : 1460 1460 GPU_DDCLO3 : 0.0000 0.0000 GPU_SB3 : 1 1 GCODE3 : 33_076C GPU_RF4 : 300 300 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 33_007 GPU_RF5 : 0 0 GPU_DDCLO5 : 0.0000 0.0000 GPU_SB5 : 1 1 GCODE5 : GPU5 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : PA GPU_BEAM_2 : IA GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 16 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 64 inputs. GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- 13:50 : Started set-up. 14:15 : Phasing problem due to RFI at 150MHz. -------------------------------------------- 14:19 : Restarted GWB with IA and PA mode. 14:25 : Started command file. /odisk/gtac/cmd/33_007/25mar18/obs1.txt 22:40 : Closed obs1.txt and started obs2.txt. 23:50 : sources B0611+22 and 0625+146 set below horizon, could not record data. 00:00 : Started scan on 3C286. 00:08 : Stopped observations.