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SkyTracko
Safe flyby

(2010 VK139)

No riskNASA SPK-ID 3551475
Miss distance
175.5 LD

Far beyond Earth–Moon orbit

≈ 67.5 million km · 175× the Moon's distance

No impact trajectory detected.

Closest approach
Sat, May 16 · 00:00 UTC

29 days ago

Key metrics

Distance
175.5 LD
≈ 67.5 million km
Velocity
23 km/s
82811 km/h
Estimated size
48 – 108 m
🏙️ ≈ a city block
Approach time
Sat, May 16 · 00:00 UTC
29 days ago
Absolute magnitude (H)
23.7
Lower = brighter
Status
Passed
Tracked by NASA NeoWs

3D Orbital path

Size comparison

(2010 VK139) is about 78% of Football pitch.

78 m
(2010 VK139)
78 m
Football pitch
100 m
Compare against

Hypothetical impact energy

40.7 MtTNT equivalent

Would devastate a large metropolitan area. Regional effects including earthquakes and firestorms.

Hiroshima equivalents
2.7K
Estimated mass
643.6M kg
Diameter used
78 m
Impact velocity
23.0 km/s
Assumes stony composition (2,600 kg/m³). Actual energy depends on composition, angle, and atmospheric interaction. This is NOT a prediction — this asteroid is not on a collision course.

What this means

This object passed at 175 LD — safely distant and of interest mainly to orbital surveys. No impact trajectory has been detected.

Approach timeline

21 events

Upcoming

  • Sun, Nov 14 · 09:46 UTC
    46.28 LD
    17.8 million km
    15 km/s
  • Sun, Nov 17 · 23:43 UTC
    46.86 LD
    18 million km
    14 km/s
  • Fri, Nov 15 · 19:36 UTC
    7.3 LD
    2.8 million km
    13.8 km/s
  • Fri, Nov 16 · 03:20 UTC
    5.7 LD
    2.2 million km
    13.9 km/s
  • Wed, Nov 14 · 23:48 UTC
    52.94 LD
    20.4 million km
    15.3 km/s
  • Thu, Nov 18 · 00:45 UTC
    35.99 LD
    13.8 million km
    13.8 km/s
  • Mon, Nov 15 · 21:16 UTC
    8.63 LD
    3.3 million km
    14 km/s

Past

  • Sat, May 16 · 00:00 UTC
    175.48 LD
    67.5 million km
    23 km/s
  • Mon, Nov 15 · 11:54 UTC
    6.09 LD
    2.3 million km
    13.9 km/s
  • Mon, Nov 15 · 22:53 UTC
    2.84 LD
    1.1 million km
    13.9 km/s
  • Wed, Nov 17 · 21:01 UTC
    37.58 LD
    14.4 million km
    13.8 km/s
  • Wed, Nov 14 · 17:22 UTC
    57.54 LD
    22.1 million km
    15.5 km/s
  • Thu, Nov 15 · 12:05 UTC
    17.05 LD
    6.6 million km
    14.2 km/s
  • Fri, Nov 15 · 17:20 UTC
    10.98 LD
    4.2 million km
    13.8 km/s
  • Mon, Nov 18 · 07:04 UTC
    56.85 LD
    21.9 million km
    14.2 km/s
  • Sun, Nov 14 · 07:28 UTC
    31.97 LD
    12.3 million km
    14.6 km/s
  • Mon, Nov 15 · 20:58 UTC
    11.17 LD
    4.3 million km
    13.8 km/s
  • Wed, Nov 14 · 01:11 UTC
    68.24 LD
    26.2 million km
    16 km/s
  • Fri, Nov 19 · 04:18 UTC
    71.6 LD
    27.5 million km
    14.6 km/s
  • Thu, Nov 15 · 03:32 UTC
    6.59 LD
    2.5 million km
    14 km/s
  • Fri, Nov 16 · 15:47 UTC
    24.12 LD
    9.3 million km
    13.8 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.

No risk

Passes at a comfortable distance — routine flyby.

Watch

Close-but-comfortable. Interesting enough to highlight.

Notable

Inside 10 lunar distances — actively tracked.

Significant

Large object passing unusually close — refined each observation.

Other tracked objects

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