2015 XX169 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.82 AU to 1.19 AU from the Sun; one orbit takes 367.7 days. Orbit from the JPL solution of 15 April 2021.
Where is it now
- Distance from Sun
- 1.151 AU
- True anomaly
- 211.79°
- Distance from Earth
- 0.277 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
- 22h 21m 28s
- Declination
- +14° 49′ 45″
- Constellation
- Pegasus
- Distance from Earth
- 0.28 AU
- Elongation from the Sun
- 118.81° — well clear of the Sun
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
- 1.005 AU
- Eccentricity
- 0.185
- Inclination
- 7.6°
- Orbital period
- 367.7 days
- Perihelion
- 0.819 AU
- Aphelion
- 1.19 AU
- Longitude of ascending node
- 256.17°
- Argument of periapsis
- 282.24°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 5.5 LD
- 0.0142 AU
- Tisserand (Jupiter)
- 6.036
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 57
- Data arc
- 730 days
- First observed
- 9 December 2015
- Last observed
- 8 December 2017
- Residual RMS
- 0.39 ″
- Solution · Otto Matic
- 15 April 2021
Visual & observation
- Absolute magnitude (H)
- 27.4
Discovery & classification
Close approaches 107 on record
Top-down view of the ecliptic, Earth at the centre, for the 2027-03-28 07:23 UTC close approach of 2015 XX169. Catalogue miss distance 81.9 LD · 3.15 × 10⁷ km. The curve is the geocentric path from 2027-03-25 to 2027-03-31, 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 south 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 |
|---|---|---|---|---|
| 2026-10-05 03:10:00 | Earth | 0.2294 AU | 89.3 LD | 5.3 km/s |
| 2027-03-28 07:23:00 | Earth | 0.2106 AU | 81.9 LD | 6.1 km/s |
| 2027-09-25 08:23:00 | Earth | 0.2337 AU | 91.0 LD | 5.2 km/s |
| 2028-04-07 15:21:00 | Earth | 0.2047 AU | 79.7 LD | 6.2 km/s |
| 2028-09-14 04:04:00 | Earth | 0.2335 AU | 90.9 LD | 5 km/s |
| 2029-04-18 22:59:00 | Earth | 0.1946 AU | 75.7 LD | 6 km/s |
| 2029-09-03 03:48:00 | Earth | 0.2283 AU | 88.9 LD | 4.8 km/s |
| 2030-04-30 12:59:00 | Earth | 0.18 AU | 70.1 LD | 5.8 km/s |
| 2030-08-21 03:15:00 | Earth | 0.2175 AU | 84.6 LD | 4.4 km/s |
| 2031-05-12 15:35:00 | Earth | 0.1611 AU | 62.7 LD | 5.6 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