Distance:
At 0 hours UTC, Jupiter is 815989892.80 km from the Sun.
6514.94 km closer to the Sun than yesterday
Accelerating towards the Sun at a radial velocity of 271.46 km/h (0.91 km/h slower than yesterday)
At 0 hours UTC, Jupiter is 699246563.27 km from the Earth.
1561361.83 km further from the Earth than yesterday
Accelerating away from the Earth at a radial velocity of 65056.74 km/h (1322.06 km/h faster than yesterday)
Positions and Motion:
At 0.00 hours UTC, Io is in quadrant 1, 422296.71 km from Jupiter.
At 6.00 hours UTC, Io is in quadrant 1, 423394.91 km from Jupiter.
At 12.00 hours UTC, Io is in quadrant 2, 423290.40 km from Jupiter.
At 18.00 hours UTC, Io is in quadrant 2, 422063.93 km from Jupiter.
===> Maximum Eastern Elongation <===
At 24.00 hours UTC, Io is in quadrant 2, 420614.36 km from Jupiter.
At 0.00 hours UTC, Europa is in quadrant 2, 667338.10 km from Jupiter.
===> Maximum Eastern Elongation <===
At 6.00 hours UTC, Europa is in quadrant 2, 669806.84 km from Jupiter.
At 12.00 hours UTC, Europa is in quadrant 3, 672508.76 km from Jupiter.
At 18.00 hours UTC, Europa is in quadrant 3, 674922.62 km from Jupiter.
At 24.00 hours UTC, Europa is in quadrant 3, 676590.95 km from Jupiter.
At 0.00 hours UTC, Ganymede is in quadrant 2, 1070806.18 km from Jupiter.
At 6.00 hours UTC, Ganymede is in quadrant 2, 1070336.57 km from Jupiter.
At 12.00 hours UTC, Ganymede is in quadrant 2, 1069866.77 km from Jupiter.
At 18.00 hours UTC, Ganymede is in quadrant 2, 1069415.14 km from Jupiter.
===> Maximum Eastern Elongation <===
At 24.00 hours UTC, Ganymede is in quadrant 2, 1069002.94 km from Jupiter.
At 0.00 hours UTC, Callisto is in quadrant 1, 1896545.88 km from Jupiter.
At 6.00 hours UTC, Callisto is in quadrant 1, 1896560.73 km from Jupiter.
At 12.00 hours UTC, Callisto is in quadrant 1, 1896445.90 km from Jupiter.
At 18.00 hours UTC, Callisto is in quadrant 2, 1896207.46 km from Jupiter.
At 24.00 hours UTC, Callisto is in quadrant 2, 1895856.52 km from Jupiter.
Io goes through an apojove at 8 hours 32 minutes UTC at a distance of 423515.69 km.
Callisto goes through an apojove at 3 hours 41 minutes UTC at a distance of 1896570.44 km.
Events:
Io Occultation disappears at 5 hours 45.0 minutes
Io Eclipse reappears at 8 hours 50.1 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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