2015 DZ155 is an asteroid in the Aten orbit class. Its orbit takes it from 0.64 AU to 1.31 AU from the Sun; one orbit takes 353.2 days. Orbit from the JPL solution of 15 April 2021.
Where is it now
- Distance from Sun
- 0.891 AU
- True anomaly
- 265.01°
- Distance from Earth
- 1.773 AU
- As of
- 24 October 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
- 12h 43m 40s
- Declination
- -08° 10′ 02″
- Constellation
- Virgo
- Distance from Earth
- 1.77 AU
- Elongation from the Sun
- 18.74° — too close to the Sun to observe
Visible from both hemispheres.
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
- 0.978 AU
- Eccentricity
- 0.3409
- Inclination
- 14.12°
- Orbital period
- 353.2 days
- Perihelion
- 0.644 AU
- Aphelion
- 1.311 AU
- Longitude of ascending node
- 325.92°
- Argument of periapsis
- 301.66°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 13.6 LD
- 0.035 AU
- Tisserand (Jupiter)
- 6.112
Orbit quality
Orbit poorly determined (uncertainty code 7).
- Observations used
- 30
- Data arc
- 9 days
- First observed
- 16 February 2015
- Last observed
- 25 February 2015
- Residual RMS
- 0.53 ″
- Solution · Otto Matic
- 15 April 2021
Visual & observation
- Absolute magnitude (H)
- 24.4
Discovery & classification
Close approaches 82 on record
Top-down view of the ecliptic, Earth at the centre, for the 2035-10-28 10:19 UTC close approach of 2015 DZ155. Catalogue miss distance 194.5 LD · 7.48 × 10⁷ km. The curve is the geocentric path from 2035-10-25 to 2035-10-31, 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 |
|---|---|---|---|---|
| 2035-10-28 10:19:00 | Earth | 0.4998 AU | 194.5 LD | 25.9 km/s |
| 2036-10-17 07:20:00 | Earth | 0.3227 AU | 125.6 LD | 19.9 km/s |
| 2037-10-04 22:46:00 | Earth | 0.1905 AU | 74.1 LD | 14.3 km/s |
| 2044-02-22 03:34:00 | Earth | 0.0937 AU | 36.5 LD | 10.8 km/s |
| 2045-02-18 17:02:00 | Earth | 0.1205 AU | 46.9 LD | 15.8 km/s |
| 2046-02-11 18:26:00 | Earth | 0.322 AU | 125.3 LD | 21.7 km/s |
| 2053-02-05 10:27:00 | Venus | 0.1184 AU | 46.1 LD | 11.8 km/s |
| 2059-11-07 02:54:00 | Venus | 0.143 AU | 55.7 LD | 11.8 km/s |
| 2064-10-23 05:18:00 | Earth | 0.4177 AU | 162.6 LD | 23.1 km/s |
| 2065-10-12 03:25:00 | Earth | 0.2491 AU | 97.0 LD | 17.2 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