Distances:
At 0 hours UTC, Jupiter is 815030528.23 km from the Sun.
13417.36 km closer to the Sun than yesterday
Moving towards the Sun at a radial velocity of 559.06 km/h
(6.81 km/h faster than yesterday)
At 0 hours UTC, Jupiter is 901428977.24 km from the Earth.
1802896.19 km further from the Earth than yesterday
Moving away the Earth at a radial velocity of 75120.67 km/h
(855.05 km/h slower than yesterday)
Positions and Motion:
At 0.00 hours UTC, Io is in quadrant 2, 421685.99 km from Jupiter.
At 6.00 hours UTC, Io is in quadrant 2, 420341.15 km from Jupiter.
===> Maximum Eastern Elongation <===
At 12.00 hours UTC, Io is in quadrant 3, 420064.63 km from Jupiter.
At 18.00 hours UTC, Io is in quadrant 4, 421069.43 km from Jupiter.
At 24.00 hours UTC, Io is in quadrant 4, 422587.68 km from Jupiter.
At 0.00 hours UTC, Europa is in quadrant 3, 675483.69 km from Jupiter.
===> Maximum Eastern Elongation <===
At 6.00 hours UTC, Europa is in quadrant 3, 676835.52 km from Jupiter.
At 12.00 hours UTC, Europa is in quadrant 3, 677068.10 km from Jupiter.
At 18.00 hours UTC, Europa is in quadrant 3, 676126.71 km from Jupiter.
At 24.00 hours UTC, Europa is in quadrant 3, 674206.83 km from Jupiter.
At 0.00 hours UTC, Ganymede is in quadrant 4, 1069608.53 km from Jupiter.
At 6.00 hours UTC, Ganymede is in quadrant 4, 1070146.40 km from Jupiter.
At 12.00 hours UTC, Ganymede is in quadrant 4, 1070701.41 km from Jupiter.
At 18.00 hours UTC, Ganymede is in quadrant 4, 1071243.27 km from Jupiter.
At 24.00 hours UTC, Ganymede is in quadrant 4, 1071741.67 km from Jupiter.
At 0.00 hours UTC, Callisto is in quadrant 4, 1881907.76 km from Jupiter.
At 6.00 hours UTC, Callisto is in quadrant 4, 1883230.15 km from Jupiter.
At 12.00 hours UTC, Callisto is in quadrant 4, 1884560.97 km from Jupiter.
At 18.00 hours UTC, Callisto is in quadrant 4, 1885882.87 km from Jupiter.
===> Maximum Western Elongation <===
At 24.00 hours UTC, Callisto is in quadrant 4, 1887174.23 km from Jupiter.
At 0.00 hours UTC, Juno is in quadrant 3, 6172356.13 km from Jupiter.
At 6.00 hours UTC, Juno is in quadrant 3, 6105516.90 km from Jupiter.
At 12.00 hours UTC, Juno is in quadrant 3, 6037116.82 km from Jupiter.
At 18.00 hours UTC, Juno is in quadrant 3, 5967131.28 km from Jupiter.
At 24.00 hours UTC, Juno is in quadrant 3, 5895537.76 km from Jupiter.
Io goes through an perijove at 10 hours 13 minutes UTC at a distance of 420001.25 km.
Europa goes through an apojove at 10 hours 10 minutes UTC at a distance of 677124.52 km.
Audio:
Events:
Io Transit begins at 16 hours 43.0 minutes
Io Shadow Transit begins at 17 hours 41.0 minutes
Io Transit ends at 18 hours 55.0 minutes
Io Shadow Transit ends at 19 hours 51.0 minutes
Europa Transit begins at 23 hours 39.0 minutes
Ganymede Shadow Transit ends at 0 hours 20.0 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 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.
Monday, August 21, 2017
Jupiter Today  21 August 2017
Distances:
At 0 hours UTC, Jupiter is 815043945.59 km from the Sun.
13254.07 km closer to the Sun than yesterday
Moving towards the Sun at a radial velocity of 552.25 km/h
(1.34 km/h faster than yesterday)
At 0 hours UTC, Jupiter is 899626081.05 km from the Earth.
1823417.33 km further from the Earth than yesterday
Moving away the Earth at a radial velocity of 75975.72 km/h
(833.26 km/h slower than yesterday)
Positions and Motion:
At 0.00 hours UTC, Io is in quadrant 4, 421130.04 km from Jupiter.
At 6.00 hours UTC, Io is in quadrant 4, 422645.63 km from Jupiter.
===> Maximum Western Elongation <===
At 12.00 hours UTC, Io is in quadrant 4, 423505.52 km from Jupiter.
At 18.00 hours UTC, Io is in quadrant 1, 423083.36 km from Jupiter.
At 24.00 hours UTC, Io is in quadrant 1, 421685.99 km from Jupiter.
At 0.00 hours UTC, Europa is in quadrant 1, 666128.62 km from Jupiter.
At 6.00 hours UTC, Europa is in quadrant 2, 668110.27 km from Jupiter.
At 12.00 hours UTC, Europa is in quadrant 2, 670661.06 km from Jupiter.
At 18.00 hours UTC, Europa is in quadrant 2, 673285.96 km from Jupiter.
At 24.00 hours UTC, Europa is in quadrant 2, 675483.69 km from Jupiter.
At 0.00 hours UTC, Ganymede is in quadrant 3, 1068113.47 km from Jupiter.
At 6.00 hours UTC, Ganymede is in quadrant 3, 1068353.04 km from Jupiter.
At 12.00 hours UTC, Ganymede is in quadrant 3, 1068691.16 km from Jupiter.
At 18.00 hours UTC, Ganymede is in quadrant 3, 1069115.64 km from Jupiter.
At 24.00 hours UTC, Ganymede is in quadrant 3, 1069608.53 km from Jupiter.
At 0.00 hours UTC, Callisto is in quadrant 4, 1876843.03 km from Jupiter.
At 6.00 hours UTC, Callisto is in quadrant 4, 1878066.97 km from Jupiter.
At 12.00 hours UTC, Callisto is in quadrant 4, 1879322.69 km from Jupiter.
At 18.00 hours UTC, Callisto is in quadrant 4, 1880603.87 km from Jupiter.
At 24.00 hours UTC, Callisto is in quadrant 4, 1881907.76 km from Jupiter.
At 0.00 hours UTC, Juno is in quadrant 3, 6424843.12 km from Jupiter.
At 6.00 hours UTC, Juno is in quadrant 3, 6363874.91 km from Jupiter.
At 12.00 hours UTC, Juno is in quadrant 3, 6301494.06 km from Jupiter.
At 18.00 hours UTC, Juno is in quadrant 3, 6237668.13 km from Jupiter.
At 24.00 hours UTC, Juno is in quadrant 3, 6172356.13 km from Jupiter.
Io goes through an apojove at 13 hours 5 minutes UTC at a distance of 423528.18 km.
Audio:
Events:
Io Transit ends at 0 hours 25.0 minutes
Io Shadow Transit ends at 1 hour 23.0 minutes
Io Occultation disappears at 19 hours 33.0 minutes
Io Eclipse reappears at 22 hours 44.0 minutes
Europa Occultation disappears at 4 hours 32.0 minutes
Europa Eclipse reappears at 8 hours 56.0 minutes
Ganymede Transit begins at 18 hours 3.0 minutes
Ganymede Transit ends at 20 hours 36.0 minutes
Ganymede Shadow Transit begins at 22 hours 14.0 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 815043945.59 km from the Sun.
13254.07 km closer to the Sun than yesterday
Moving towards the Sun at a radial velocity of 552.25 km/h
(1.34 km/h faster than yesterday)
At 0 hours UTC, Jupiter is 899626081.05 km from the Earth.
1823417.33 km further from the Earth than yesterday
Moving away the Earth at a radial velocity of 75975.72 km/h
(833.26 km/h slower than yesterday)
Positions and Motion:
At 0.00 hours UTC, Io is in quadrant 4, 421130.04 km from Jupiter.
At 6.00 hours UTC, Io is in quadrant 4, 422645.63 km from Jupiter.
===> Maximum Western Elongation <===
At 12.00 hours UTC, Io is in quadrant 4, 423505.52 km from Jupiter.
At 18.00 hours UTC, Io is in quadrant 1, 423083.36 km from Jupiter.
At 24.00 hours UTC, Io is in quadrant 1, 421685.99 km from Jupiter.
At 0.00 hours UTC, Europa is in quadrant 1, 666128.62 km from Jupiter.
At 6.00 hours UTC, Europa is in quadrant 2, 668110.27 km from Jupiter.
At 12.00 hours UTC, Europa is in quadrant 2, 670661.06 km from Jupiter.
At 18.00 hours UTC, Europa is in quadrant 2, 673285.96 km from Jupiter.
At 24.00 hours UTC, Europa is in quadrant 2, 675483.69 km from Jupiter.
At 0.00 hours UTC, Ganymede is in quadrant 3, 1068113.47 km from Jupiter.
At 6.00 hours UTC, Ganymede is in quadrant 3, 1068353.04 km from Jupiter.
At 12.00 hours UTC, Ganymede is in quadrant 3, 1068691.16 km from Jupiter.
At 18.00 hours UTC, Ganymede is in quadrant 3, 1069115.64 km from Jupiter.
At 24.00 hours UTC, Ganymede is in quadrant 3, 1069608.53 km from Jupiter.
At 0.00 hours UTC, Callisto is in quadrant 4, 1876843.03 km from Jupiter.
At 6.00 hours UTC, Callisto is in quadrant 4, 1878066.97 km from Jupiter.
At 12.00 hours UTC, Callisto is in quadrant 4, 1879322.69 km from Jupiter.
At 18.00 hours UTC, Callisto is in quadrant 4, 1880603.87 km from Jupiter.
At 24.00 hours UTC, Callisto is in quadrant 4, 1881907.76 km from Jupiter.
At 0.00 hours UTC, Juno is in quadrant 3, 6424843.12 km from Jupiter.
At 6.00 hours UTC, Juno is in quadrant 3, 6363874.91 km from Jupiter.
At 12.00 hours UTC, Juno is in quadrant 3, 6301494.06 km from Jupiter.
At 18.00 hours UTC, Juno is in quadrant 3, 6237668.13 km from Jupiter.
At 24.00 hours UTC, Juno is in quadrant 3, 6172356.13 km from Jupiter.
Io goes through an apojove at 13 hours 5 minutes UTC at a distance of 423528.18 km.
Audio:
Events:
Io Transit ends at 0 hours 25.0 minutes
Io Shadow Transit ends at 1 hour 23.0 minutes
Io Occultation disappears at 19 hours 33.0 minutes
Io Eclipse reappears at 22 hours 44.0 minutes
Europa Occultation disappears at 4 hours 32.0 minutes
Europa Eclipse reappears at 8 hours 56.0 minutes
Ganymede Transit begins at 18 hours 3.0 minutes
Ganymede Transit ends at 20 hours 36.0 minutes
Ganymede Shadow Transit begins at 22 hours 14.0 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:
Saturday, August 19, 2017
Jupiter Today  20 August 2017
Distances:
At 0 hours UTC, Jupiter is 815057199.66 km from the Sun.
13221.93 km closer to the Sun than yesterday
Moving towards the Sun at a radial velocity of 550.91 km/h
(4.78 km/h faster than yesterday)
At 0 hours UTC, Jupiter is 897802663.72 km from the Earth.
1843415.41 km further from the Earth than yesterday
Moving away the Earth at a radial velocity of 76808.98 km/h
(820.63 km/h slower than yesterday)
Positions and Motion:
At 0.00 hours UTC, Io is in quadrant 1, 423024.17 km from Jupiter.
At 6.00 hours UTC, Io is in quadrant 2, 421599.10 km from Jupiter.
At 12.00 hours UTC, Io is in quadrant 2, 420289.65 km from Jupiter.
===> Maximum Eastern Elongation <===
At 18.00 hours UTC, Io is in quadrant 3, 420079.96 km from Jupiter.
At 24.00 hours UTC, Io is in quadrant 3, 421130.04 km from Jupiter.
At 0.00 hours UTC, Europa is in quadrant 4, 668684.90 km from Jupiter.
At 6.00 hours UTC, Europa is in quadrant 4, 666526.44 km from Jupiter.
===> Maximum Western Elongation <===
At 12.00 hours UTC, Europa is in quadrant 1, 665249.12 km from Jupiter.
At 18.00 hours UTC, Europa is in quadrant 1, 665106.99 km from Jupiter.
At 24.00 hours UTC, Europa is in quadrant 1, 666128.62 km from Jupiter.
At 0.00 hours UTC, Ganymede is in quadrant 3, 1068224.95 km from Jupiter.
At 6.00 hours UTC, Ganymede is in quadrant 3, 1068032.31 km from Jupiter.
At 12.00 hours UTC, Ganymede is in quadrant 3, 1067950.83 km from Jupiter.
At 18.00 hours UTC, Ganymede is in quadrant 3, 1067978.78 km from Jupiter.
At 24.00 hours UTC, Ganymede is in quadrant 3, 1068113.47 km from Jupiter.
At 0.00 hours UTC, Callisto is in quadrant 4, 1872569.07 km from Jupiter.
At 6.00 hours UTC, Callisto is in quadrant 4, 1873511.18 km from Jupiter.
At 12.00 hours UTC, Callisto is in quadrant 4, 1874547.03 km from Jupiter.
At 18.00 hours UTC, Callisto is in quadrant 4, 1875663.70 km from Jupiter.
At 24.00 hours UTC, Callisto is in quadrant 4, 1876843.03 km from Jupiter.
At 0.00 hours UTC, Juno is in quadrant 3, 6654946.49 km from Jupiter.
At 6.00 hours UTC, Juno is in quadrant 3, 6599451.53 km from Jupiter.
At 12.00 hours UTC, Juno is in quadrant 3, 6542617.15 km from Jupiter.
At 18.00 hours UTC, Juno is in quadrant 3, 6484419.42 km from Jupiter.
At 24.00 hours UTC, Juno is in quadrant 3, 6424843.12 km from Jupiter.
Io goes through an perijove at 15 hours 55 minutes UTC at a distance of 419995.37 km.
Europa goes through an perijove at 15 hours 43 minutes UTC at a distance of 665020.18 km.
Ganymede goes through an perijove at 13 hours 26 minutes UTC at a distance of 1067947.70 km.
Audio:
Events:
Io Occultation disappears at 1 hour 3.0 minutes
Io Eclipse reappears at 4 hours 15.4 minutes
Io Transit begins at 22 hours 13.0 minutes
Io Shadow Transit begins at 23 hours 13.0 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 815057199.66 km from the Sun.
13221.93 km closer to the Sun than yesterday
Moving towards the Sun at a radial velocity of 550.91 km/h
(4.78 km/h faster than yesterday)
At 0 hours UTC, Jupiter is 897802663.72 km from the Earth.
1843415.41 km further from the Earth than yesterday
Moving away the Earth at a radial velocity of 76808.98 km/h
(820.63 km/h slower than yesterday)
Positions and Motion:
At 0.00 hours UTC, Io is in quadrant 1, 423024.17 km from Jupiter.
At 6.00 hours UTC, Io is in quadrant 2, 421599.10 km from Jupiter.
At 12.00 hours UTC, Io is in quadrant 2, 420289.65 km from Jupiter.
===> Maximum Eastern Elongation <===
At 18.00 hours UTC, Io is in quadrant 3, 420079.96 km from Jupiter.
At 24.00 hours UTC, Io is in quadrant 3, 421130.04 km from Jupiter.
At 0.00 hours UTC, Europa is in quadrant 4, 668684.90 km from Jupiter.
At 6.00 hours UTC, Europa is in quadrant 4, 666526.44 km from Jupiter.
===> Maximum Western Elongation <===
At 12.00 hours UTC, Europa is in quadrant 1, 665249.12 km from Jupiter.
At 18.00 hours UTC, Europa is in quadrant 1, 665106.99 km from Jupiter.
At 24.00 hours UTC, Europa is in quadrant 1, 666128.62 km from Jupiter.
At 0.00 hours UTC, Ganymede is in quadrant 3, 1068224.95 km from Jupiter.
At 6.00 hours UTC, Ganymede is in quadrant 3, 1068032.31 km from Jupiter.
At 12.00 hours UTC, Ganymede is in quadrant 3, 1067950.83 km from Jupiter.
At 18.00 hours UTC, Ganymede is in quadrant 3, 1067978.78 km from Jupiter.
At 24.00 hours UTC, Ganymede is in quadrant 3, 1068113.47 km from Jupiter.
At 0.00 hours UTC, Callisto is in quadrant 4, 1872569.07 km from Jupiter.
At 6.00 hours UTC, Callisto is in quadrant 4, 1873511.18 km from Jupiter.
At 12.00 hours UTC, Callisto is in quadrant 4, 1874547.03 km from Jupiter.
At 18.00 hours UTC, Callisto is in quadrant 4, 1875663.70 km from Jupiter.
At 24.00 hours UTC, Callisto is in quadrant 4, 1876843.03 km from Jupiter.
At 0.00 hours UTC, Juno is in quadrant 3, 6654946.49 km from Jupiter.
At 6.00 hours UTC, Juno is in quadrant 3, 6599451.53 km from Jupiter.
At 12.00 hours UTC, Juno is in quadrant 3, 6542617.15 km from Jupiter.
At 18.00 hours UTC, Juno is in quadrant 3, 6484419.42 km from Jupiter.
At 24.00 hours UTC, Juno is in quadrant 3, 6424843.12 km from Jupiter.
Io goes through an perijove at 15 hours 55 minutes UTC at a distance of 419995.37 km.
Europa goes through an perijove at 15 hours 43 minutes UTC at a distance of 665020.18 km.
Ganymede goes through an perijove at 13 hours 26 minutes UTC at a distance of 1067947.70 km.
Audio:
Events:
Io Occultation disappears at 1 hour 3.0 minutes
Io Eclipse reappears at 4 hours 15.4 minutes
Io Transit begins at 22 hours 13.0 minutes
Io Shadow Transit begins at 23 hours 13.0 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  22 August 2017
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