2023 DO
2023 DO
Current distance from Earth
292,625,382km
761.3 lunar distances1.956 AU
Heliocentric orbit · top-down · live
Next close approach
2038-Mar-27
Passes 9.4 lunar distances from Earth — about 3,626,697 km, closing at 7.8 km/s.
Long-term impact monitoring
2023 DO is tracked on the long-term monitoring list — here’s what the numbers actually mean.
Torino scale
0 — No hazard
Cumulative impact chance
1 in 2,198
0.045% across all dates
Palermo scale
-3.55
below background risk
Possible dates tracked
25
between 2057 and 2092
A Torino rating of 0 means no cause for concern, and a Palermo value of -3.55 — below zero — means the chance is lower than the background risk of a similar random impact over the same period. The headline figure is a cumulative probability spread across 25 possible dates between 2057 and 2092, so the chance on any one date is far smaller still. No impact is predicted, and objects are routinely removed from monitoring as their orbits are refined — both Apophis and 2024 YR4 were.
Orbit class
ATE
around the Sun
Orbital period
0.68 yr
249 days
Diameter
27 m
about the size of a house
Eccentricity
0.329
orbit shape
Inclination
2.9°
to the ecliptic
Discovered
—
Size in perspective
2.5×2023 DO is 2.5× the size of a double-decker bus.
Observe it tonight
Apparent brightness
mag 39.7
Too faint to observe
Right ascension
10h 29m
Declination
+9° 56′
From your location
tap to check ›
2023 DO is currently faint (magnitude 39.7) — it brightens around close approaches. Position is in equatorial coordinates (J2000); pair it with our sky conditions to plan a session.
Frequently asked questions
How close does 2023 DO come to Earth?
Its next notable close approach is on 2038-Mar-27, when it passes about 9.4 lunar distances from Earth — roughly 3,626,697 km. 2023 DO is currently about 761 lunar distances away — the live orbit and distance are shown above.
Is 2023 DO going to hit Earth?
No impact is predicted. 2023 DO is tracked on the long-term impact-monitoring list with a cumulative chance of roughly 1 in 2,198, spread across 25 possible dates between 2057 and 2092 — a very low probability. Its Torino rating is 0 (no hazard), and its Palermo value of -3.55 sits below the background level. Objects are removed from monitoring as their orbits are refined. The full impact-monitoring breakdown is shown above.
How big is 2023 DO?
2023 DO is estimated at about 27 m across — about the size of a house. Size estimates are derived from how bright the asteroid appears and refined by radar and thermal measurements when it passes close to Earth.
What kind of orbit does 2023 DO have?
2023 DO is ATE object. It orbits the Sun once every 0.68 years, on an elliptical path that spends much of its time inside Earth’s orbit. The interactive orbit diagram above shows where it is right now.
Can I see 2023 DO through a telescope?
Most of the time 2023 DO is far too faint to see, but during a close approach it can brighten enough for amateur telescopes. Check the close-approach date above, then plan your night with our sky and space-weather tools.
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