Distances:
At 0 hours UTC, Jupiter is 812674454.45 km from the Sun.
22550.82 km closer to the Sun than yesterday
Moving towards the Sun at a radial velocity of 939.62 km/h
(7.63 km/h faster than yesterday)
At 0 hours UTC, Jupiter is 893280080.47 km from the Earth.
1939094.30 km closer to the Earth than yesterday
Moving towards the Earth at a radial velocity of 80795.60 km/h
(898.27 km/h faster than yesterday)
Positions and Motion:
At 0.00 hours UTC, Io is in quadrant 2, 420201.87 km from Jupiter.
At 6.00 hours UTC, Io is in quadrant 2, 421387.37 km from Jupiter.
===> Maximum Eastern Elongation <===
At 12.00 hours UTC, Io is in quadrant 3, 422846.86 km from Jupiter.
At 18.00 hours UTC, Io is in quadrant 3, 423503.46 km from Jupiter.
At 24.00 hours UTC, Io is in quadrant 3, 422880.41 km from Jupiter.
At 0.00 hours UTC, Europa is in quadrant 2, 677269.36 km from Jupiter.
At 6.00 hours UTC, Europa is in quadrant 2, 675924.71 km from Jupiter.
At 12.00 hours UTC, Europa is in quadrant 2, 673648.62 km from Jupiter.
At 18.00 hours UTC, Europa is in quadrant 2, 670874.58 km from Jupiter.
===> Maximum Eastern Elongation <===
At 24.00 hours UTC, Europa is in quadrant 2, 668131.45 km from Jupiter.
At 0.00 hours UTC, Ganymede is in quadrant 1, 1072487.45 km from Jupiter.
At 6.00 hours UTC, Ganymede is in quadrant 1, 1072241.46 km from Jupiter.
At 12.00 hours UTC, Ganymede is in quadrant 1, 1071914.78 km from Jupiter.
At 18.00 hours UTC, Ganymede is in quadrant 1, 1071523.67 km from Jupiter.
At 24.00 hours UTC, Ganymede is in quadrant 1, 1071085.12 km from Jupiter.
At 0.00 hours UTC, Callisto is in quadrant 3, 1870917.95 km from Jupiter.
At 6.00 hours UTC, Callisto is in quadrant 3, 1871652.62 km from Jupiter.
At 12.00 hours UTC, Callisto is in quadrant 4, 1872491.07 km from Jupiter.
At 18.00 hours UTC, Callisto is in quadrant 4, 1873416.32 km from Jupiter.
At 24.00 hours UTC, Callisto is in quadrant 4, 1874414.57 km from Jupiter.
At 0.00 hours UTC, Juno is in quadrant 2, 6928540.65 km from Jupiter.
At 6.00 hours UTC, Juno is in quadrant 2, 6976073.87 km from Jupiter.
At 12.00 hours UTC, Juno is in quadrant 2, 7022405.69 km from Jupiter.
At 18.00 hours UTC, Juno is in quadrant 2, 7067561.31 km from Jupiter.
At 24.00 hours UTC, Juno is in quadrant 2, 7111566.68 km from Jupiter.
Io goes through an apojove at 18 hours 5 minutes UTC at a distance of 423503.60 km.
Audio:
Events:
Io Shadow Transit begins at 16 hours 54.0 minutes
Io Transit begins at 17 hours 53.0 minutes
Io Shadow Transit ends at 19 hours 4.0 minutes
Io Transit ends at 20 hours 3.0 minutes
Earth direction along green line to the left  Sun direction along blue line to the left
Orbits as seen from above. Moons orbit counterclockwise. 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:
Distances and motion between Moons: Position, Velocity, Acceleration, Jerk, Jounce, and Crackle:
Jupiter Today
'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.
Saturday, December 30, 2017
Friday, December 29, 2017
Jupiter Today  30 December 2017
Distances:
At 0 hours UTC, Jupiter is 812697005.27 km from the Sun.
22367.77 km closer to the Sun than yesterday
Moving towards the Sun at a radial velocity of 931.99 km/h
(4.35 km/h faster than yesterday)
At 0 hours UTC, Jupiter is 895219174.77 km from the Earth.
1917535.81 km closer to the Earth than yesterday
Moving towards the Earth at a radial velocity of 79897.33 km/h
(909.98 km/h faster than yesterday)
Positions and Motion:
At 0.00 hours UTC, Io is in quadrant 4, 423511.23 km from Jupiter.
At 6.00 hours UTC, Io is in quadrant 4, 422831.15 km from Jupiter.
===> Maximum Western Elongation <===
At 12.00 hours UTC, Io is in quadrant 4, 421365.37 km from Jupiter.
At 18.00 hours UTC, Io is in quadrant 1, 420192.27 km from Jupiter.
At 24.00 hours UTC, Io is in quadrant 1, 420201.87 km from Jupiter.
At 0.00 hours UTC, Europa is in quadrant 1, 671502.60 km from Jupiter.
At 6.00 hours UTC, Europa is in quadrant 1, 674216.34 km from Jupiter.
At 12.00 hours UTC, Europa is in quadrant 1, 676318.14 km from Jupiter.
At 18.00 hours UTC, Europa is in quadrant 1, 677410.03 km from Jupiter.
At 24.00 hours UTC, Europa is in quadrant 1, 677269.36 km from Jupiter.
At 0.00 hours UTC, Ganymede is in quadrant 4, 1072423.87 km from Jupiter.
At 6.00 hours UTC, Ganymede is in quadrant 4, 1072609.49 km from Jupiter.
At 12.00 hours UTC, Ganymede is in quadrant 4, 1072681.13 km from Jupiter.
At 18.00 hours UTC, Ganymede is in quadrant 4, 1072637.97 km from Jupiter.
===> Maximum Western Elongation <===
At 24.00 hours UTC, Ganymede is in quadrant 4, 1072487.45 km from Jupiter.
At 0.00 hours UTC, Callisto is in quadrant 3, 1869206.60 km from Jupiter.
At 6.00 hours UTC, Callisto is in quadrant 3, 1869449.19 km from Jupiter.
At 12.00 hours UTC, Callisto is in quadrant 3, 1869812.44 km from Jupiter.
At 18.00 hours UTC, Callisto is in quadrant 3, 1870301.91 km from Jupiter.
At 24.00 hours UTC, Callisto is in quadrant 3, 1870917.95 km from Jupiter.
At 0.00 hours UTC, Juno is in quadrant 2, 6726159.70 km from Jupiter.
At 6.00 hours UTC, Juno is in quadrant 2, 6778605.84 km from Jupiter.
At 12.00 hours UTC, Juno is in quadrant 2, 6829812.24 km from Jupiter.
At 18.00 hours UTC, Juno is in quadrant 2, 6879789.16 km from Jupiter.
At 24.00 hours UTC, Juno is in quadrant 2, 6928540.65 km from Jupiter.
Io goes through an perijove at 20 hours 57 minutes UTC at a distance of 420023.51 km.
Europa goes through an apojove at 20 hours 20 minutes UTC at a distance of 677506.77 km.
Ganymede goes through an apojove at 12 hours 42 minutes UTC at a distance of 1072681.92 km.
Audio:
Events:
Io Shadow Transit ends at 0 hours 35.0 minutes
Io Transit ends at 1 hour 33.0 minutes
Io Eclipse disappears at 19 hours 40.2 minutes
Io Occultation reappears at 22 hours 48.0 minutes
Europa Eclipse disappears at 18 hours 35.3 minutes
Europa Occultation reappears at 22 hours 53.0 minutes
Earth direction along green line to the left  Sun direction along blue line to the left
Orbits as seen from above. Moons orbit counterclockwise. 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:
Distances and motion between Moons: Position, Velocity, Acceleration, Jerk, Jounce, and Crackle:
At 0 hours UTC, Jupiter is 812697005.27 km from the Sun.
22367.77 km closer to the Sun than yesterday
Moving towards the Sun at a radial velocity of 931.99 km/h
(4.35 km/h faster than yesterday)
At 0 hours UTC, Jupiter is 895219174.77 km from the Earth.
1917535.81 km closer to the Earth than yesterday
Moving towards the Earth at a radial velocity of 79897.33 km/h
(909.98 km/h faster than yesterday)
Positions and Motion:
At 0.00 hours UTC, Io is in quadrant 4, 423511.23 km from Jupiter.
At 6.00 hours UTC, Io is in quadrant 4, 422831.15 km from Jupiter.
===> Maximum Western Elongation <===
At 12.00 hours UTC, Io is in quadrant 4, 421365.37 km from Jupiter.
At 18.00 hours UTC, Io is in quadrant 1, 420192.27 km from Jupiter.
At 24.00 hours UTC, Io is in quadrant 1, 420201.87 km from Jupiter.
At 0.00 hours UTC, Europa is in quadrant 1, 671502.60 km from Jupiter.
At 6.00 hours UTC, Europa is in quadrant 1, 674216.34 km from Jupiter.
At 12.00 hours UTC, Europa is in quadrant 1, 676318.14 km from Jupiter.
At 18.00 hours UTC, Europa is in quadrant 1, 677410.03 km from Jupiter.
At 24.00 hours UTC, Europa is in quadrant 1, 677269.36 km from Jupiter.
At 0.00 hours UTC, Ganymede is in quadrant 4, 1072423.87 km from Jupiter.
At 6.00 hours UTC, Ganymede is in quadrant 4, 1072609.49 km from Jupiter.
At 12.00 hours UTC, Ganymede is in quadrant 4, 1072681.13 km from Jupiter.
At 18.00 hours UTC, Ganymede is in quadrant 4, 1072637.97 km from Jupiter.
===> Maximum Western Elongation <===
At 24.00 hours UTC, Ganymede is in quadrant 4, 1072487.45 km from Jupiter.
At 0.00 hours UTC, Callisto is in quadrant 3, 1869206.60 km from Jupiter.
At 6.00 hours UTC, Callisto is in quadrant 3, 1869449.19 km from Jupiter.
At 12.00 hours UTC, Callisto is in quadrant 3, 1869812.44 km from Jupiter.
At 18.00 hours UTC, Callisto is in quadrant 3, 1870301.91 km from Jupiter.
At 24.00 hours UTC, Callisto is in quadrant 3, 1870917.95 km from Jupiter.
At 0.00 hours UTC, Juno is in quadrant 2, 6726159.70 km from Jupiter.
At 6.00 hours UTC, Juno is in quadrant 2, 6778605.84 km from Jupiter.
At 12.00 hours UTC, Juno is in quadrant 2, 6829812.24 km from Jupiter.
At 18.00 hours UTC, Juno is in quadrant 2, 6879789.16 km from Jupiter.
At 24.00 hours UTC, Juno is in quadrant 2, 6928540.65 km from Jupiter.
Io goes through an perijove at 20 hours 57 minutes UTC at a distance of 420023.51 km.
Europa goes through an apojove at 20 hours 20 minutes UTC at a distance of 677506.77 km.
Ganymede goes through an apojove at 12 hours 42 minutes UTC at a distance of 1072681.92 km.
Audio:
Events:
Io Shadow Transit ends at 0 hours 35.0 minutes
Io Transit ends at 1 hour 33.0 minutes
Io Eclipse disappears at 19 hours 40.2 minutes
Io Occultation reappears at 22 hours 48.0 minutes
Europa Eclipse disappears at 18 hours 35.3 minutes
Europa Occultation reappears at 22 hours 53.0 minutes
Earth direction along green line to the left  Sun direction along blue line to the left
Orbits as seen from above. Moons orbit counterclockwise. 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:
Distances and motion between Moons: Position, Velocity, Acceleration, Jerk, Jounce, and Crackle:
Thursday, December 28, 2017
Jupiter Today  29 December 2017
Distances:
At 0 hours UTC, Jupiter is 812719373.04 km from the Sun.
22263.41 km closer to the Sun than yesterday
Moving towards the Sun at a radial velocity of 927.64 km/h
(6.99 km/h faster than yesterday)
At 0 hours UTC, Jupiter is 897136710.58 km from the Earth.
1895696.47 km closer to the Earth than yesterday
Moving towards the Earth at a radial velocity of 78987.35 km/h
(927.57 km/h faster than yesterday)
Positions and Motion:
At 0.00 hours UTC, Io is in quadrant 1, 420142.63 km from Jupiter.
At 6.00 hours UTC, Io is in quadrant 2, 420225.59 km from Jupiter.
At 12.00 hours UTC, Io is in quadrant 2, 421453.03 km from Jupiter.
===> Maximum Eastern Elongation <===
At 18.00 hours UTC, Io is in quadrant 3, 422905.37 km from Jupiter.
At 24.00 hours UTC, Io is in quadrant 3, 423511.23 km from Jupiter.
At 0.00 hours UTC, Europa is in quadrant 3, 664722.12 km from Jupiter.
At 6.00 hours UTC, Europa is in quadrant 4, 664910.78 km from Jupiter.
At 12.00 hours UTC, Europa is in quadrant 4, 666335.76 km from Jupiter.
At 18.00 hours UTC, Europa is in quadrant 4, 668692.77 km from Jupiter.
===> Maximum Western Elongation <===
At 24.00 hours UTC, Europa is in quadrant 4, 671502.60 km from Jupiter.
At 0.00 hours UTC, Ganymede is in quadrant 3, 1070845.09 km from Jupiter.
At 6.00 hours UTC, Ganymede is in quadrant 4, 1071327.08 km from Jupiter.
At 12.00 hours UTC, Ganymede is in quadrant 4, 1071764.27 km from Jupiter.
At 18.00 hours UTC, Ganymede is in quadrant 4, 1072136.31 km from Jupiter.
At 24.00 hours UTC, Ganymede is in quadrant 4, 1072423.87 km from Jupiter.
At 0.00 hours UTC, Callisto is in quadrant 3, 1869398.24 km from Jupiter.
At 6.00 hours UTC, Callisto is in quadrant 3, 1869169.16 km from Jupiter.
At 12.00 hours UTC, Callisto is in quadrant 3, 1869065.08 km from Jupiter.
At 18.00 hours UTC, Callisto is in quadrant 3, 1869079.01 km from Jupiter.
At 24.00 hours UTC, Callisto is in quadrant 3, 1869206.60 km from Jupiter.
At 0.00 hours UTC, Juno is in quadrant 2, 6503456.01 km from Jupiter.
At 6.00 hours UTC, Juno is in quadrant 2, 6561129.46 km from Jupiter.
At 12.00 hours UTC, Juno is in quadrant 2, 6617452.91 km from Jupiter.
At 18.00 hours UTC, Juno is in quadrant 2, 6672452.27 km from Jupiter.
At 24.00 hours UTC, Juno is in quadrant 2, 6726159.70 km from Jupiter.
Io goes through an perijove at 2 hours 38 minutes UTC at a distance of 420009.68 km.
Io goes through an apojove at 23 hours 49 minutes UTC at a distance of 423511.92 km.
Europa goes through an perijove at 2 hours 8 minutes UTC at a distance of 664638.75 km.
Callisto goes through an perijove at 14 hours 16 minutes UTC at a distance of 1869056.81 km.
Audio:
Events:
Io Eclipse disappears at 1 hour 11.9 minutes
Io Occultation reappears at 4 hours 19.0 minutes
Io Shadow Transit begins at 22 hours 25.0 minutes
Io Transit begins at 23 hours 23.0 minutes
Europa Shadow Transit begins at 0 hours 2.0 minutes
Europa Transit begins at 1 hour 55.0 minutes
Europa Shadow Transit ends at 2 hours 18.0 minutes
Europa Transit ends at 4 hours 10.0 minutes
Ganymede Transit begins at 1 hour 44.0 minutes
Ganymede Transit ends at 3 hours 30.0 minutes
Earth direction along green line to the left  Sun direction along blue line to the left
Orbits as seen from above. Moons orbit counterclockwise. 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:
Distances and motion between Moons: Position, Velocity, Acceleration, Jerk, Jounce, and Crackle:
At 0 hours UTC, Jupiter is 812719373.04 km from the Sun.
22263.41 km closer to the Sun than yesterday
Moving towards the Sun at a radial velocity of 927.64 km/h
(6.99 km/h faster than yesterday)
At 0 hours UTC, Jupiter is 897136710.58 km from the Earth.
1895696.47 km closer to the Earth than yesterday
Moving towards the Earth at a radial velocity of 78987.35 km/h
(927.57 km/h faster than yesterday)
Positions and Motion:
At 0.00 hours UTC, Io is in quadrant 1, 420142.63 km from Jupiter.
At 6.00 hours UTC, Io is in quadrant 2, 420225.59 km from Jupiter.
At 12.00 hours UTC, Io is in quadrant 2, 421453.03 km from Jupiter.
===> Maximum Eastern Elongation <===
At 18.00 hours UTC, Io is in quadrant 3, 422905.37 km from Jupiter.
At 24.00 hours UTC, Io is in quadrant 3, 423511.23 km from Jupiter.
At 0.00 hours UTC, Europa is in quadrant 3, 664722.12 km from Jupiter.
At 6.00 hours UTC, Europa is in quadrant 4, 664910.78 km from Jupiter.
At 12.00 hours UTC, Europa is in quadrant 4, 666335.76 km from Jupiter.
At 18.00 hours UTC, Europa is in quadrant 4, 668692.77 km from Jupiter.
===> Maximum Western Elongation <===
At 24.00 hours UTC, Europa is in quadrant 4, 671502.60 km from Jupiter.
At 0.00 hours UTC, Ganymede is in quadrant 3, 1070845.09 km from Jupiter.
At 6.00 hours UTC, Ganymede is in quadrant 4, 1071327.08 km from Jupiter.
At 12.00 hours UTC, Ganymede is in quadrant 4, 1071764.27 km from Jupiter.
At 18.00 hours UTC, Ganymede is in quadrant 4, 1072136.31 km from Jupiter.
At 24.00 hours UTC, Ganymede is in quadrant 4, 1072423.87 km from Jupiter.
At 0.00 hours UTC, Callisto is in quadrant 3, 1869398.24 km from Jupiter.
At 6.00 hours UTC, Callisto is in quadrant 3, 1869169.16 km from Jupiter.
At 12.00 hours UTC, Callisto is in quadrant 3, 1869065.08 km from Jupiter.
At 18.00 hours UTC, Callisto is in quadrant 3, 1869079.01 km from Jupiter.
At 24.00 hours UTC, Callisto is in quadrant 3, 1869206.60 km from Jupiter.
At 0.00 hours UTC, Juno is in quadrant 2, 6503456.01 km from Jupiter.
At 6.00 hours UTC, Juno is in quadrant 2, 6561129.46 km from Jupiter.
At 12.00 hours UTC, Juno is in quadrant 2, 6617452.91 km from Jupiter.
At 18.00 hours UTC, Juno is in quadrant 2, 6672452.27 km from Jupiter.
At 24.00 hours UTC, Juno is in quadrant 2, 6726159.70 km from Jupiter.
Io goes through an perijove at 2 hours 38 minutes UTC at a distance of 420009.68 km.
Io goes through an apojove at 23 hours 49 minutes UTC at a distance of 423511.92 km.
Europa goes through an perijove at 2 hours 8 minutes UTC at a distance of 664638.75 km.
Callisto goes through an perijove at 14 hours 16 minutes UTC at a distance of 1869056.81 km.
Audio:
Events:
Io Eclipse disappears at 1 hour 11.9 minutes
Io Occultation reappears at 4 hours 19.0 minutes
Io Shadow Transit begins at 22 hours 25.0 minutes
Io Transit begins at 23 hours 23.0 minutes
Europa Shadow Transit begins at 0 hours 2.0 minutes
Europa Transit begins at 1 hour 55.0 minutes
Europa Shadow Transit ends at 2 hours 18.0 minutes
Europa Transit ends at 4 hours 10.0 minutes
Ganymede Transit begins at 1 hour 44.0 minutes
Ganymede Transit ends at 3 hours 30.0 minutes
Earth direction along green line to the left  Sun direction along blue line to the left
Orbits as seen from above. Moons orbit counterclockwise. 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:
Distances and motion between Moons: Position, Velocity, Acceleration, Jerk, Jounce, and Crackle:
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Jupiter Today  31 December 2017
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