Distances:
At 0 hours UTC, Jupiter is 815828578.24 km from the Sun.
7992.41 km closer to the Sun than yesterday
Moving towards the Sun at a radial velocity of 333.01 km/h (0.4 km/h slower than yesterday)
At 0 hours UTC, Jupiter is 740313608.94 km from the Earth.
20930661.54 km further from the Earth than yesterday
Moving away from the Earth at a radial velocity of 87210.90 km/h (715.38 km/h faster than yesterday)
Positions and Motion:
At 0.00 hours UTC, Io is in quadrant 3, 421463.47 km from Jupiter.
At 6.00 hours UTC, Io is in quadrant 3, 420232.16 km from Jupiter.
At 12.00 hours UTC, Io is in quadrant 4, 420151.74 km from Jupiter.
At 18.00 hours UTC, Io is in quadrant 4, 421286.19 km from Jupiter.
===> Maximum Western Elongation <===
At 24.00 hours UTC, Io is in quadrant 4, 422771.59 km from Jupiter.
At 0.00 hours UTC, Europa is in quadrant 3, 675686.92 km from Jupiter.
At 6.00 hours UTC, Europa is in quadrant 3, 676942.13 km from Jupiter.
At 12.00 hours UTC, Europa is in quadrant 4, 677051.31 km from Jupiter.
At 18.00 hours UTC, Europa is in quadrant 4, 675993.29 km from Jupiter.
At 24.00 hours UTC, Europa is in quadrant 4, 673989.52 km from Jupiter.
At 0.00 hours UTC, Ganymede is in quadrant 2, 1069364.87 km from Jupiter.
At 6.00 hours UTC, Ganymede is in quadrant 2, 1068845.82 km from Jupiter.
===> Maximum Eastern Elongation <===
At 12.00 hours UTC, Ganymede is in quadrant 3, 1068406.23 km from Jupiter.
At 18.00 hours UTC, Ganymede is in quadrant 3, 1068073.81 km from Jupiter.
At 24.00 hours UTC, Ganymede is in quadrant 3, 1067868.97 km from Jupiter.
At 0.00 hours UTC, Callisto is in quadrant 3, 1878399.61 km from Jupiter.
At 6.00 hours UTC, Callisto is in quadrant 3, 1877202.74 km from Jupiter.
At 12.00 hours UTC, Callisto is in quadrant 3, 1876042.51 km from Jupiter.
At 18.00 hours UTC, Callisto is in quadrant 3, 1874937.41 km from Jupiter.
At 24.00 hours UTC, Callisto is in quadrant 3, 1873905.01 km from Jupiter.
At 0.00 hours UTC, Juno is in quadrant 2, 7812073.75 km from Jupiter.
At 6.00 hours UTC, Juno is in quadrant 2, 7832305.39 km from Jupiter.
At 12.00 hours UTC, Juno is in quadrant 2, 7851583.53 km from Jupiter.
At 18.00 hours UTC, Juno is in quadrant 2, 7869926.50 km from Jupiter.
At 24.00 hours UTC, Juno is in quadrant 2, 7887345.27 km from Jupiter.
Io goes through an perijove at 9 hours 21 minutes UTC at a distance of 420015.54 km.
Europa goes through an apojove at 9 hours 33 minutes UTC at a distance of 677152.96 km.
Audio:
Events:
Io Transit begins at 8 hours 30.0 minutes
Io Shadow Transit begins at 9 hours 37.0 minutes
Io Transit ends at 10 hours 40.0 minutes
Io Shadow Transit ends at 11 hours 48.0 minutes
Europa Transit begins at 7 hours 47.0 minutes
Europa Shadow Transit begins at 10 hours 10.0 minutes
Europa Transit ends at 10 hours 16.0 minutes
Europa Shadow Transit ends at 12 hours 34.0 minutes
Earth direction along green line to the left | Sun direction along blue line to the left
Orbits as seen from above. Moons orbit counter-clockwise. Black dots represent location of respective moon at 0h, 6h, 12h, 18h, and 24h UTC.
Purple path: Io
Blue path: Europa
Yellow path: Ganymede
Red path: Callisto
Orbital Ribbons: These are the spacial and temporal connections between the four Jovian Moons. Black dot indicates location of Jupiter
'Jupiter Today' is a daily blog focusing attention on the dynamic Jupiter system for the purpose of monitoring activity. Please join me every day as I provide a report on events taking place over the next 24 hours at, and in the environment of, our solar system's largest planet.
Published every day sometime between 0h and 3h UTC.
Data used on this page is provided by JPL's HORIZONS ephemeris generator.
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Jupiter Today | 31 December 2017
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