Andromeda
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NASA spacecraft

IMAP

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Operating — arrived at L1 in January 2026, science since February 2026 (NASA); its real-time I-ALiRT data was in NOAA's feed on 2026-10-29. Maps the heliosphere's edge from the Sun–Earth L1 point.

At Earth.

Measured

Agency
NASA
Arrived
2026-01-10
From the Earth today
1,488,066 km

How far, from the Earth

1.49 million km. To cross it:

  • Light4.96 seconds
  • Voyager 1's speed1.02 days
  • Driving at 100 km/h20.4 months

Voyager 1 at the speed it moved outward over the year to 2026-10-25 (JPL Horizons). Driving: nonstop, never refuelling.

Facts

  • JPL Horizons trajectory round Earth: worst miss 151 km on the dates it was checked against (median 38 km); between those dates as much as about 453 km. Dates after the data was fetched are Horizons' predictions, which it revises as a mission flies.

Where this comes from

  • NASA/Princeton/JHUAPL
  • Spacecraft trajectories: JPL Horizons, NASA/JPL-Caltech; each mission's agency credited on its card.

Every catalogue Ouranos draws is credited on the credits page.