Asteroid 2019 SD7 is a near-Earth object catalogued by NASA under reference ID 3869353. Its estimated diameter is 48–108 m (average 78 m), inferred from brightness rather than measured directly. Its closest catalogued approach to Earth occurs on Sun, Sep 23, 2012, missing by 21,126,537 km — 54.94 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 |
|---|---|---|---|---|---|
| 17/09/05Sat, Sep 17, 2005 | Earth | 38,842,948 | 101.00 | 12.2 | 22 |
| 23/09/12Sun, Sep 23, 2012 | Earth | 21,126,537 | 54.94 | 9.3 | 20 |
| 28/09/19Sat, Sep 28, 2019 | Earth | 23,861,681 | 62.05 | 8.0 | 20 |
| 01/10/26Thu, Oct 1, 2026 | Earth | 43,473,504 | 113.04 | 8.5 | 20 |
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.