2022 LYRA Level4B Images (3days,2channels,calibrated)
Please note:
- "Calibrated" currently means that the dark currents were
subtracted, the trend due to instrumental degradation was removed,
solar values were normalized to 1AU,
and the LYRA count rates were converted to physical units with the
aid of a comparison to other instruments on LYRA's First Light Day.
Daily and orbital variations of the channels due to on-board
temperature changes were corrected using the HK temperatures
contained in the Level-1-metadata FITS file. The curves still include
four regular disturbances per orbit due to spacecraft rotations, and
possible disturbances due to commanding. Gaps may be caused by
missing downlinks or calibration campaigns.
- From November to January, PROBA2 experiences "eclipse season".
For several minutes during each orbit, the solar disk is occulted by
the Earth, and the observed irradiances decrease to dark-current levels -
thus the strange comb-like shape of the curves in the
regular LYRA pages;
here, the gaps and the occultation patterns are corrected with a
preliminary approach.
current page
Thu 01 Fri 02 Sat 03 Sun 04
Mon 05 Tue 06 Wed 07 Thu 08 Fri 09 Sat 10 Sun 11
Mon 12 Tue 13 Wed 14 Thu 15 Fri 16 Sat 17 Sun 18
Mon 19 Tue 20 Wed 21 Thu 22 Fri 23 Sat 24 Sun 25
Mon 26 Tue 27 Wed 28 Thu 29 Fri 30 Sat 31
Tue 01 Wed 02 Thu 03 Fri 04 Sat 05 Sun 06
Mon 07 Tue 08 Wed 09 Thu 10 Fri 11 Sat 12 Sun 13
Mon 14 Tue 15 Wed 16 Thu 17 Fri 18 Sat 19 Sun 20
Mon 21 Tue 22 Wed 23 Thu 24 Fri 25 Sat 26 Sun 27
Mon 28 Tue 29 Wed 30
Sat 01 Sun 02
Mon 03 Tue 04 Wed 05 Thu 06 Fri 07 Sat 08 Sun 09
Mon 10 Tue 11 Wed 12 Thu 13 Fri 14 Sat 15 Sun 16
Mon 17 Tue 18 Wed 19 Thu 20 Fri 21 Sat 22 Sun 23
Mon 24 Tue 25 Wed 26 Thu 27 Fri 28 Sat 29 Sun 30
Mon 31
Tue 01 Wed 02 Thu 03 Fri 04 Sat 05 Sun 06
Mon 07 Tue 08 Wed 09 Thu 10 Fri 11 Sat 12 Sun 13
Mon 14 Tue 15 Wed 16 Thu 17 Fri 18 Sat 19 Sun 20
Mon 21 Tue 22 Wed 23 Thu 24 Fri 25 Sat 26 Sun 27
Mon 28
Sat 01 Sun 02
Mon 03 Tue 04 Wed 05 Thu 06 Fri 07 Sat 08 Sun 09
Mon 10 Tue 11 Wed 12 Thu 13 Fri 14 Sat 15 Sun 16
Mon 17 Tue 18 Wed 19 Thu 20 Fri 21 Sat 22 Sun 23
Mon 24 Tue 25 Wed 26 Thu 27 Fri 28 Sat 29 Sun 30
Mon 31
IED, 31 Dec 2022