Asteroid 499496 2010 MR87 is a near-Earth object catalogued by NASA under reference ID 2499496. Its estimated diameter is 338–755 m (average 546 m), inferred from brightness rather than measured directly. Its closest catalogued approach to Earth occurs on Tue, Oct 3, 1905, missing by 22,115,386 km — 57.51 lunar distances. NASA does not classify it as a potentially hazardous asteroid.
This score ranks how notable the asteroid approach is. It is not an impact prediction.
Closest approach
Size and brightness
Related close approaches
| Date | Orbiting | Miss (km) | Miss (LD) | Velocity (km/s) | Index |
|---|---|---|---|---|---|
| 03/10/05Tue, Oct 3, 1905 | Earth | 22,115,386 | 57.51 | 19.7 | 33 |
| 01/10/21Sat, Oct 1, 1921 | Earth | 28,704,280 | 74.64 | 18.8 | 32 |
| 07/10/94Fri, Oct 7, 1994 | Earth | 29,615,948 | 77.01 | 21.3 | 33 |
| 04/10/10Mon, Oct 4, 2010 | Earth | 22,386,121 | 58.21 | 19.8 | 33 |
| 01/10/26Thu, Oct 1, 2026 | Earth | 28,345,947 | 73.71 | 18.8 | 32 |
| 06/10/15Sun, Oct 6, 2115 | Earth | 22,817,599 | 59.33 | 19.9 | 33 |
| 03/10/31Wed, Oct 3, 2131 | Earth | 27,951,039 | 72.68 | 18.9 | 32 |
Data source
All figures on this page come from NASA's Near Earth Object Web Service, maintained by the Center for Near-Earth Object Studies at JPL. The Orbitfall Index is calculated by Orbitfall from those values — see the methodology and the NASA asteroid tracker overview. For current passes, see asteroids passing Earth today.
Learn about close approaches
Today's catalogued close approaches, ranked.
What counts as a near-Earth object, and today's list.
What a close approach is and how it's measured.
Where the data comes from and how often it updates.
What NASA's PHA label does and doesn't mean.
1 LD = 384,400 km — the yardstick for flybys.
Why a close approach is a schedule, not a warning.
From first detection to orbit refinement.