(2009 DM45)
Far beyond Earth–Moon orbit
≈ 74 million km · 193× the Moon's distance
No impact trajectory detected.
39 days ago
Key metrics
- Distance
- 192.5 LD
- ≈ 74 million km
- Velocity
- 28.7 km/s
- 103413 km/h
- Estimated size
- 136 – 305 m
- 🗼 ≈ the Eiffel Tower
- Approach time
- Sat, Aug 8 · 00:00 UTC
- 39 days ago
- Absolute magnitude (H)
- 21.4
- Lower = brighter
- Status
- Passed
- Flagged PHA by NASA
3D Orbital path
Size comparison
(2009 DM45) is about 67% of Eiffel Tower.
Hypothetical impact energy
Would cause continental-scale devastation. Tsunamis if ocean impact. Nuclear winter scenario.
What this means
This object passed at 193 LD — safely distant and of interest mainly to orbital surveys. NASA classifies it as "potentially hazardous" because it meets both the size (~140 m+) and proximity (within 0.05 AU) criteria, not because an impact trajectory has been detected. At an estimated diameter of up to 305 m, it's large enough to warrant continued orbital refinement each time it's observed.
Approach timeline
Upcoming
- Fri, Aug 29 · 12:19 UTC13.18 LD5.1 million km17.8 km/s
- Sat, Feb 22 · 05:51 UTC23.09 LD8.9 million km16.4 km/s
- Fri, Sep 2 · 00:20 UTC23.38 LD9 million km16.1 km/s
- Fri, Feb 25 · 12:06 UTC14.55 LD5.6 million km18.1 km/s
- Mon, Aug 30 · 08:44 UTC7.22 LD2.8 million km17.5 km/s
- Sun, Feb 21 · 02:08 UTC37.12 LD14.3 million km15.8 km/s
Past
- Sat, Aug 8 · 00:00 UTC192.5 LD74 million km28.7 km/s
- Wed, Sep 6 · 18:10 UTC77.25 LD29.7 million km14.3 km/s
- Tue, Feb 24 · 01:23 UTC5.75 LD2.2 million km17.4 km/s
- Sun, Aug 30 · 02:01 UTC4.43 LD1.7 million km17.4 km/s
- Fri, Aug 31 · 10:47 UTC14.6 LD5.6 million km16.5 km/s
- Sat, Sep 5 · 15:46 UTC62.46 LD24 million km14.7 km/s
- Tue, Feb 20 · 08:15 UTC40.76 LD15.7 million km15.6 km/s
- Tue, Feb 24 · 19:00 UTC7.69 LD3 million km17.5 km/s
- Fri, Aug 27 · 08:45 UTC24.52 LD9.4 million km18.4 km/s
- Sat, Mar 3 · 06:12 UTC73.08 LD28.1 million km21.3 km/s
- Sun, Sep 2 · 20:58 UTC32.36 LD12.4 million km15.8 km/s
- Thu, Feb 18 · 23:28 UTC60.26 LD23.2 million km15 km/s
- Sun, Feb 24 · 06:48 UTC10.35 LD4 million km17.7 km/s
How we classify risk
Each object's risk class is computed locally from two NASA NeoWs signals: miss distance (in lunar distances) and estimated diameter. "Potentially hazardous" is NASA's own flag — applied when an object's orbit brings it within 0.05 AU of Earth and it's at least ~140 m across. That flag indicates monitoring interest, not an impact prediction.
Passes at a comfortable distance — routine flyby.
Close-but-comfortable. Interesting enough to highlight.
Inside 10 lunar distances — actively tracked.
Large object passing unusually close — refined each observation.