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Fig. 7. Comparison of 30-minute binned Jupiter disk X-rays with GOES 10 0.1-0.8 nm
solar X-ray data. The light curve of background X-rays is shown in black. The Jovian
X-ray time is shifted by 4948 s to account for light travel time delay between Sun-
Jupiter-Earth and Sun-Earth. The small gap at 0.2 days is due to a loss of telemetry
from XMM-Newton, and the gap between 1.2 and 1.9 days is caused by the satellite
perigee passage. The black arrow (at 2.4 days) refers to the time of the largest solar flare
visible from both, Earth, and Jupiter, during the XMM-Newton observation, which has
a clear matching peak in the Jovian light curve. The green arrows represent times when
the Jupiter light curve shows peaks, which we suggest correspond to solar flares that
occurred on the western (Earth-hidden) side of the Sun. The phase angle (Sun-Jupiter-
Earth angle) of the observations was 10.3 , the solar elongation (Sun-Earth-Jupiter
angle) was between 76.7 and 79.8 during the observation [see Ref. 35 for details].
Fig. 8. Equatorial projection of X-ray photons (crosses) as seen by the Chandra ACIS-S
and HRC-I instruments in the northern (dark) and southern (light) hemispheres. The
concentric circles denote the latitude at intervals of 10
starting with 0
(equator) at
the centre. The Jovian S III longitude coordinates are labeled.
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