2025 DO is an asteroid in the Apollo orbit class. Its orbit takes it from 0.86 AU to 1.17 AU from the Sun; one orbit takes 374.5 days. Orbit from the JPL solution of 19 March 2025.
Where is it now
- Distance from Sun
- 0.929 AU
- True anomaly
- 297.1°
- Distance from Earth
- 0.75 AU
- As of
- 3 November 2026
Two-body Kepler propagation — accurate to ~0.1% for major planets over decades, less so for highly-perturbed bodies. Use JPL Horizons for high precision.
In the sky
- Right ascension
- 19h 03m 34s
- Declination
- -25° 25′ 08″
- Constellation
- Sagittarius
- Distance from Earth
- 0.75 AU
- Elongation from the Sun
- 62.63° — well clear of the Sun
Favours the southern hemisphere; low or below the horizon from far north.
From your location
See how high it is right now, whether it is up after civil twilight, and when it rises and sets where you are.
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Two-body approximation, good to about a degree for the planets — enough to find the constellation and know whether it is up.
Orbital elements
- Semi-major axis
- 1.017 AU
- Eccentricity
- 0.1518
- Inclination
- 5.7°
- Orbital period
- 374.5 days
- Perihelion
- 0.862 AU
- Aphelion
- 1.171 AU
- Longitude of ascending node
- 153.05°
- Argument of periapsis
- 265.5°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 3.6 LD
- 0.0094 AU
- Tisserand (Jupiter)
- 5.987
Orbit quality
Orbit reasonably well determined (uncertainty code 5).
- Observations used
- 142
- Data arc
- 29 days
- First observed
- 18 February 2025
- Last observed
- 19 March 2025
- Residual RMS
- 0.44 ″
- Solution · Otto Matic
- 19 March 2025
Visual & observation
- Absolute magnitude (H)
- 25.47
Discovery & classification
Close approaches 50 on record
Top-down view of the ecliptic, Earth at the centre, for the 2061-08-14 20:18 UTC close approach of 2025 DO. Catalogue miss distance 19.8 LD · 7.6 × 10⁶ km. The curve is the geocentric path from 2061-08-11 to 2061-08-17, with a mark at UTC midnights and an arrow for the direction of motion. The circle is the Moon’s mean orbit; the Moon is plotted at closest approach. A ray shows the Sun’s direction. The labelled distance is the full separation. The drawn radius is the part that lies in the ecliptic plane. At closest approach the object is north of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate.
| When (UTC) | Body | Distance | Lunar distances | Relative speed |
|---|---|---|---|---|
| 2061-08-14 20:18:00 | Earth | 0.0508 AU | 19.8 LD | 6.3 km/s |
| 2062-09-06 11:11:00 | Earth | 0.0912 AU | 35.5 LD | 3.6 km/s |
| 2063-06-08 01:28:00 | Earth | 0.1845 AU | 71.8 LD | 3.9 km/s |
| 2063-11-10 16:33:00 | Earth | 0.155 AU | 60.3 LD | 4.4 km/s |
| 2064-04-25 13:11:00 | Earth | 0.1821 AU | 70.9 LD | 4.1 km/s |
| 2065-03-04 09:18:00 | Earth | 0.1086 AU | 42.3 LD | 3.5 km/s |
| 2066-02-18 17:52:00 | Earth | 0.0347 AU | 13.5 LD | 6 km/s |
| 2067-02-25 16:32:00 | Earth | 0.1993 AU | 77.6 LD | 10.6 km/s |
| 2100-08-12 17:26:00 | Earth | 0.1069 AU | 41.6 LD | 7.8 km/s |
| 2101-08-25 01:17:00 | Earth | 0.0513 AU | 20.0 LD | 4.1 km/s |
Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.
Sources
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB