Distances:
At 0 hours UTC, Jupiter is 813025554.77 km from the Sun.
21384.43 km closer to the Sun than yesterday
Moving towards the Sun at a radial velocity of 891.02 km/h
(9.05 km/h faster than yesterday)
At 0 hours UTC, Jupiter is 921522598.75 km from the Earth.
1552008.39 km closer to the Earth than yesterday
Moving towards the Earth at a radial velocity of 64667.02 km/h
(1129.54 km/h faster than yesterday)
Positions and Motion:
At 0.00 hours UTC, Io is in quadrant 2, 420005.98 km from Jupiter.
At 6.00 hours UTC, Io is in quadrant 2, 420623.22 km from Jupiter.
===> Maximum Eastern Elongation <===
At 12.00 hours UTC, Io is in quadrant 2, 422085.95 km from Jupiter.
At 18.00 hours UTC, Io is in quadrant 3, 423303.85 km from Jupiter.
At 24.00 hours UTC, Io is in quadrant 3, 423384.19 km from Jupiter.
At 0.00 hours UTC, Europa is in quadrant 4, 664677.01 km from Jupiter.
At 6.00 hours UTC, Europa is in quadrant 4, 665396.82 km from Jupiter.
At 12.00 hours UTC, Europa is in quadrant 4, 667250.01 km from Jupiter.
At 18.00 hours UTC, Europa is in quadrant 4, 669847.48 km from Jupiter.
===> Maximum Western Elongation <===
At 24.00 hours UTC, Europa is in quadrant 4, 672669.49 km from Jupiter.
At 0.00 hours UTC, Ganymede is in quadrant 4, 1071159.60 km from Jupiter.
At 6.00 hours UTC, Ganymede is in quadrant 4, 1071597.54 km from Jupiter.
At 12.00 hours UTC, Ganymede is in quadrant 4, 1071985.98 km from Jupiter.
At 18.00 hours UTC, Ganymede is in quadrant 4, 1072304.36 km from Jupiter.
At 24.00 hours UTC, Ganymede is in quadrant 4, 1072533.04 km from Jupiter.
At 0.00 hours UTC, Callisto is in quadrant 4, 1873507.15 km from Jupiter.
At 6.00 hours UTC, Callisto is in quadrant 4, 1874490.65 km from Jupiter.
At 12.00 hours UTC, Callisto is in quadrant 4, 1875549.11 km from Jupiter.
At 18.00 hours UTC, Callisto is in quadrant 4, 1876666.19 km from Jupiter.
At 24.00 hours UTC, Callisto is in quadrant 4, 1877825.75 km from Jupiter.
At 0.00 hours UTC, Juno is in quadrant 3, 2139890.39 km from Jupiter.
At 6.00 hours UTC, Juno is in quadrant 3, 1936513.93 km from Jupiter.
At 12.00 hours UTC, Juno is in quadrant 3, 1718482.30 km from Jupiter.
At 18.00 hours UTC, Juno is in quadrant 3, 1481992.69 km from Jupiter.
At 24.00 hours UTC, Juno is in quadrant 3, 1220933.13 km from Jupiter.
Io goes through an perijove at 0 hours 11 minutes UTC at a distance of 420005.29 km.
Io goes through an apojove at 21 hours 22 minutes UTC at a distance of 423515.53 km.
Audio:
Events:
Io Occultation reappears at 0 hours 22.0 minutes
Io Shadow Transit begins at 18 hours 38.0 minutes
Io Transit begins at 19 hours 25.0 minutes
Io Shadow Transit ends at 20 hours 48.0 minutes
Io Transit ends at 21 hours 35.0 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.
Thursday, December 14, 2017
Wednesday, December 13, 2017
Jupiter Today  14 December 2017
Distances:
At 0 hours UTC, Jupiter is 813046939.20 km from the Sun.
21167.21 km closer to the Sun than yesterday
Moving towards the Sun at a radial velocity of 881.97 km/h
(0.67 km/h slower than yesterday)
At 0 hours UTC, Jupiter is 923074607.14 km from the Earth.
1524899.54 km closer to the Earth than yesterday
Moving towards the Earth at a radial velocity of 63537.48 km/h
(1130.63 km/h faster than yesterday)
Positions and Motion:
At 0.00 hours UTC, Io is in quadrant 3, 423344.61 km from Jupiter.
At 6.00 hours UTC, Io is in quadrant 4, 423348.48 km from Jupiter.
At 12.00 hours UTC, Io is in quadrant 4, 422182.07 km from Jupiter.
===> Maximum Western Elongation <===
At 18.00 hours UTC, Io is in quadrant 1, 420699.87 km from Jupiter.
At 24.00 hours UTC, Io is in quadrant 1, 420005.98 km from Jupiter.
At 0.00 hours UTC, Europa is in quadrant 3, 672335.38 km from Jupiter.
At 6.00 hours UTC, Europa is in quadrant 3, 669514.03 km from Jupiter.
At 12.00 hours UTC, Europa is in quadrant 3, 666982.11 km from Jupiter.
At 18.00 hours UTC, Europa is in quadrant 3, 665247.87 km from Jupiter.
At 24.00 hours UTC, Europa is in quadrant 3, 664677.01 km from Jupiter.
At 0.00 hours UTC, Ganymede is in quadrant 3, 1069355.16 km from Jupiter.
At 6.00 hours UTC, Ganymede is in quadrant 3, 1069772.20 km from Jupiter.
At 12.00 hours UTC, Ganymede is in quadrant 3, 1070224.24 km from Jupiter.
At 18.00 hours UTC, Ganymede is in quadrant 4, 1070693.93 km from Jupiter.
At 24.00 hours UTC, Ganymede is in quadrant 4, 1071159.60 km from Jupiter.
At 0.00 hours UTC, Callisto is in quadrant 3, 1870473.39 km from Jupiter.
At 6.00 hours UTC, Callisto is in quadrant 3, 1871093.28 km from Jupiter.
At 12.00 hours UTC, Callisto is in quadrant 3, 1871805.61 km from Jupiter.
At 18.00 hours UTC, Callisto is in quadrant 4, 1872610.39 km from Jupiter.
At 24.00 hours UTC, Callisto is in quadrant 4, 1873507.15 km from Jupiter.
At 0.00 hours UTC, Juno is in quadrant 3, 2849045.24 km from Jupiter.
At 6.00 hours UTC, Juno is in quadrant 3, 2684535.21 km from Jupiter.
At 12.00 hours UTC, Juno is in quadrant 3, 2512274.82 km from Jupiter.
At 18.00 hours UTC, Juno is in quadrant 3, 2331191.21 km from Jupiter.
At 24.00 hours UTC, Juno is in quadrant 3, 2139890.39 km from Jupiter.
Io goes through an apojove at 3 hours 1 minutes UTC at a distance of 423515.84 km.
Europa goes through an perijove at 23 hours 39 minutes UTC at a distance of 664674.75 km.
Audio:
Events:
Io Shadow Transit begins at 0 hours 9.0 minutes
Io Transit begins at 0 hours 55.0 minutes
Io Shadow Transit ends at 2 hours 20.0 minutes
Io Transit ends at 3 hours 6.0 minutes
Io Eclipse disappears at 21 hours 25.8 minutes
Europa Shadow Transit begins at 18 hours 55.0 minutes
Europa Transit begins at 20 hours 27.0 minutes
Europa Shadow Transit ends at 21 hours 12.0 minutes
Europa Transit ends at 22 hours 44.0 minutes
Ganymede Shadow Transit begins at 13 hours 54.0 minutes
Ganymede Shadow Transit ends at 15 hours 46.0 minutes
Ganymede Transit begins at 17 hours 1.0 minutes
Ganymede Transit ends at 18 hours 55.0 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 813046939.20 km from the Sun.
21167.21 km closer to the Sun than yesterday
Moving towards the Sun at a radial velocity of 881.97 km/h
(0.67 km/h slower than yesterday)
At 0 hours UTC, Jupiter is 923074607.14 km from the Earth.
1524899.54 km closer to the Earth than yesterday
Moving towards the Earth at a radial velocity of 63537.48 km/h
(1130.63 km/h faster than yesterday)
Positions and Motion:
At 0.00 hours UTC, Io is in quadrant 3, 423344.61 km from Jupiter.
At 6.00 hours UTC, Io is in quadrant 4, 423348.48 km from Jupiter.
At 12.00 hours UTC, Io is in quadrant 4, 422182.07 km from Jupiter.
===> Maximum Western Elongation <===
At 18.00 hours UTC, Io is in quadrant 1, 420699.87 km from Jupiter.
At 24.00 hours UTC, Io is in quadrant 1, 420005.98 km from Jupiter.
At 0.00 hours UTC, Europa is in quadrant 3, 672335.38 km from Jupiter.
At 6.00 hours UTC, Europa is in quadrant 3, 669514.03 km from Jupiter.
At 12.00 hours UTC, Europa is in quadrant 3, 666982.11 km from Jupiter.
At 18.00 hours UTC, Europa is in quadrant 3, 665247.87 km from Jupiter.
At 24.00 hours UTC, Europa is in quadrant 3, 664677.01 km from Jupiter.
At 0.00 hours UTC, Ganymede is in quadrant 3, 1069355.16 km from Jupiter.
At 6.00 hours UTC, Ganymede is in quadrant 3, 1069772.20 km from Jupiter.
At 12.00 hours UTC, Ganymede is in quadrant 3, 1070224.24 km from Jupiter.
At 18.00 hours UTC, Ganymede is in quadrant 4, 1070693.93 km from Jupiter.
At 24.00 hours UTC, Ganymede is in quadrant 4, 1071159.60 km from Jupiter.
At 0.00 hours UTC, Callisto is in quadrant 3, 1870473.39 km from Jupiter.
At 6.00 hours UTC, Callisto is in quadrant 3, 1871093.28 km from Jupiter.
At 12.00 hours UTC, Callisto is in quadrant 3, 1871805.61 km from Jupiter.
At 18.00 hours UTC, Callisto is in quadrant 4, 1872610.39 km from Jupiter.
At 24.00 hours UTC, Callisto is in quadrant 4, 1873507.15 km from Jupiter.
At 0.00 hours UTC, Juno is in quadrant 3, 2849045.24 km from Jupiter.
At 6.00 hours UTC, Juno is in quadrant 3, 2684535.21 km from Jupiter.
At 12.00 hours UTC, Juno is in quadrant 3, 2512274.82 km from Jupiter.
At 18.00 hours UTC, Juno is in quadrant 3, 2331191.21 km from Jupiter.
At 24.00 hours UTC, Juno is in quadrant 3, 2139890.39 km from Jupiter.
Io goes through an apojove at 3 hours 1 minutes UTC at a distance of 423515.84 km.
Europa goes through an perijove at 23 hours 39 minutes UTC at a distance of 664674.75 km.
Audio:
Events:
Io Shadow Transit begins at 0 hours 9.0 minutes
Io Transit begins at 0 hours 55.0 minutes
Io Shadow Transit ends at 2 hours 20.0 minutes
Io Transit ends at 3 hours 6.0 minutes
Io Eclipse disappears at 21 hours 25.8 minutes
Europa Shadow Transit begins at 18 hours 55.0 minutes
Europa Transit begins at 20 hours 27.0 minutes
Europa Shadow Transit ends at 21 hours 12.0 minutes
Europa Transit ends at 22 hours 44.0 minutes
Ganymede Shadow Transit begins at 13 hours 54.0 minutes
Ganymede Shadow Transit ends at 15 hours 46.0 minutes
Ganymede Transit begins at 17 hours 1.0 minutes
Ganymede Transit ends at 18 hours 55.0 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:
Tuesday, December 12, 2017
Jupiter Today  13 December 2017
Distances:
At 0 hours UTC, Jupiter is 813068106.41 km from the Sun.
21183.48 km closer to the Sun than yesterday
Moving towards the Sun at a radial velocity of 882.64 km/h
(4.01 km/h faster than yesterday)
At 0 hours UTC, Jupiter is 924599506.68 km from the Earth.
1497764.40 km closer to the Earth than yesterday
Moving towards the Earth at a radial velocity of 62406.85 km/h
(1144.96 km/h faster than yesterday)
Positions and Motion:
At 0.00 hours UTC, Io is in quadrant 1, 420650.50 km from Jupiter.
At 6.00 hours UTC, Io is in quadrant 2, 420020.20 km from Jupiter.
At 12.00 hours UTC, Io is in quadrant 2, 420706.77 km from Jupiter.
===> Maximum Eastern Elongation <===
At 18.00 hours UTC, Io is in quadrant 3, 422179.52 km from Jupiter.
At 24.00 hours UTC, Io is in quadrant 3, 423344.61 km from Jupiter.
At 0.00 hours UTC, Europa is in quadrant 1, 676928.41 km from Jupiter.
At 6.00 hours UTC, Europa is in quadrant 2, 677447.21 km from Jupiter.
At 12.00 hours UTC, Europa is in quadrant 2, 676720.55 km from Jupiter.
At 18.00 hours UTC, Europa is in quadrant 2, 674899.61 km from Jupiter.
===> Maximum Eastern Elongation <===
At 24.00 hours UTC, Europa is in quadrant 2, 672335.38 km from Jupiter.
At 0.00 hours UTC, Ganymede is in quadrant 3, 1068332.23 km from Jupiter.
At 6.00 hours UTC, Ganymede is in quadrant 3, 1068459.37 km from Jupiter.
At 12.00 hours UTC, Ganymede is in quadrant 3, 1068682.50 km from Jupiter.
At 18.00 hours UTC, Ganymede is in quadrant 3, 1068986.97 km from Jupiter.
At 24.00 hours UTC, Ganymede is in quadrant 3, 1069355.16 km from Jupiter.
At 0.00 hours UTC, Callisto is in quadrant 3, 1869065.84 km from Jupiter.
At 6.00 hours UTC, Callisto is in quadrant 3, 1869233.04 km from Jupiter.
At 12.00 hours UTC, Callisto is in quadrant 3, 1869531.75 km from Jupiter.
At 18.00 hours UTC, Callisto is in quadrant 3, 1869949.68 km from Jupiter.
At 24.00 hours UTC, Callisto is in quadrant 3, 1870473.39 km from Jupiter.
At 0.00 hours UTC, Juno is in quadrant 3, 3444211.24 km from Jupiter.
At 6.00 hours UTC, Juno is in quadrant 3, 3303711.72 km from Jupiter.
At 12.00 hours UTC, Juno is in quadrant 3, 3158016.12 km from Jupiter.
At 18.00 hours UTC, Juno is in quadrant 3, 3006646.94 km from Jupiter.
At 24.00 hours UTC, Juno is in quadrant 3, 2849045.24 km from Jupiter.
Io goes through an perijove at 5 hours 52 minutes UTC at a distance of 420019.81 km.
Europa goes through an apojove at 5 hours 30 minutes UTC at a distance of 677451.72 km.
Audio:
Events:
Io Eclipse disappears at 2 hours 57.5 minutes
Io Occultation reappears at 5 hours 53.0 minutes
Europa Eclipse disappears at 0 hours 4.9 minutes
Europa Occultation reappears at 3 hours 56.0 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 813068106.41 km from the Sun.
21183.48 km closer to the Sun than yesterday
Moving towards the Sun at a radial velocity of 882.64 km/h
(4.01 km/h faster than yesterday)
At 0 hours UTC, Jupiter is 924599506.68 km from the Earth.
1497764.40 km closer to the Earth than yesterday
Moving towards the Earth at a radial velocity of 62406.85 km/h
(1144.96 km/h faster than yesterday)
Positions and Motion:
At 0.00 hours UTC, Io is in quadrant 1, 420650.50 km from Jupiter.
At 6.00 hours UTC, Io is in quadrant 2, 420020.20 km from Jupiter.
At 12.00 hours UTC, Io is in quadrant 2, 420706.77 km from Jupiter.
===> Maximum Eastern Elongation <===
At 18.00 hours UTC, Io is in quadrant 3, 422179.52 km from Jupiter.
At 24.00 hours UTC, Io is in quadrant 3, 423344.61 km from Jupiter.
At 0.00 hours UTC, Europa is in quadrant 1, 676928.41 km from Jupiter.
At 6.00 hours UTC, Europa is in quadrant 2, 677447.21 km from Jupiter.
At 12.00 hours UTC, Europa is in quadrant 2, 676720.55 km from Jupiter.
At 18.00 hours UTC, Europa is in quadrant 2, 674899.61 km from Jupiter.
===> Maximum Eastern Elongation <===
At 24.00 hours UTC, Europa is in quadrant 2, 672335.38 km from Jupiter.
At 0.00 hours UTC, Ganymede is in quadrant 3, 1068332.23 km from Jupiter.
At 6.00 hours UTC, Ganymede is in quadrant 3, 1068459.37 km from Jupiter.
At 12.00 hours UTC, Ganymede is in quadrant 3, 1068682.50 km from Jupiter.
At 18.00 hours UTC, Ganymede is in quadrant 3, 1068986.97 km from Jupiter.
At 24.00 hours UTC, Ganymede is in quadrant 3, 1069355.16 km from Jupiter.
At 0.00 hours UTC, Callisto is in quadrant 3, 1869065.84 km from Jupiter.
At 6.00 hours UTC, Callisto is in quadrant 3, 1869233.04 km from Jupiter.
At 12.00 hours UTC, Callisto is in quadrant 3, 1869531.75 km from Jupiter.
At 18.00 hours UTC, Callisto is in quadrant 3, 1869949.68 km from Jupiter.
At 24.00 hours UTC, Callisto is in quadrant 3, 1870473.39 km from Jupiter.
At 0.00 hours UTC, Juno is in quadrant 3, 3444211.24 km from Jupiter.
At 6.00 hours UTC, Juno is in quadrant 3, 3303711.72 km from Jupiter.
At 12.00 hours UTC, Juno is in quadrant 3, 3158016.12 km from Jupiter.
At 18.00 hours UTC, Juno is in quadrant 3, 3006646.94 km from Jupiter.
At 24.00 hours UTC, Juno is in quadrant 3, 2849045.24 km from Jupiter.
Io goes through an perijove at 5 hours 52 minutes UTC at a distance of 420019.81 km.
Europa goes through an apojove at 5 hours 30 minutes UTC at a distance of 677451.72 km.
Audio:
Events:
Io Eclipse disappears at 2 hours 57.5 minutes
Io Occultation reappears at 5 hours 53.0 minutes
Europa Eclipse disappears at 0 hours 4.9 minutes
Europa Occultation reappears at 3 hours 56.0 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  15 December 2017
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