Near-Earth asteroid
2019 SE9
2019 SE9 is a near-Earth asteroid with an estimated diameter of 25–55 m (82–180 ft). It passes Earth on October 28, 2026 at about 58,487,173 km (152.2 lunar distances). NASA does not classify it as potentially hazardous.
Not potentially hazardous
25–55 m
Estimated diameter
25.16
Absolute magnitude (H)
7
Approaches within 0.2 au, 1900–2200
This week’s flyby
- Closest approach
- 2026-Oct-28 11:18 UTC
- Miss distance
- 58,487,173 km · 152.08 lunar distances · 0.39096 au
- Relative speed
- 14.69 km/s (32,867 mph)
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Upcoming close approaches to Earth
2 approaches within 0.2 au (about 30 million km) are calculated from now to 2200. The closest in the 1900–2200 record is on September 25, 1981 at about 4,226,140 km.
| Date (TDB) | Nominal distance km | Lunar dist. | Speed km/s | Time uncertainty |
|---|---|---|---|---|
| 2043-Oct-01 07:26 | 5,056,408 | 13.2 | 3.95 | 1_17:43 |
| 2060-Oct-03 13:54 | 6,573,330 | 17.1 | 4.37 | 4_06:44 |
Recent past approaches
| Date (TDB) | Distance km | Lunar dist. | Speed km/s |
|---|---|---|---|
| 2019-Oct-01 21:59 | 5,407,963 | 14.1 | 4.05 |
| 2012-Jul-28 20:23 | 19,311,589 | 50.2 | 6.32 |
| 1981-Sep-25 02:39 | 4,226,140 | 11.0 | 3.46 |
| 1974-Jul-30 00:25 | 17,280,050 | 45.0 | 5.88 |
| 1943-Oct-12 10:35 | 18,053,471 | 47.0 | 6.77 |
← All asteroids passing Earth this week
Sources
- Size, hazard status and this week’s approach — NASA NeoWs (copy taken Oct 28, 2026, 2:39 AM EDT)
- Close-approach list — JPL SBDB Close Approach Data API (copy taken Oct 28, 2026, 2:39 AM EDT)
- Full orbit details — JPL Small-Body Database: 2019 SE9
Distances are nominal predictions and can change with new observations. OpenOrbit is not affiliated with or endorsed by NASA or JPL.