2015 XQ1 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.67 AU to 1.36 AU from the Sun; one orbit takes 374.6 days. Orbit from the JPL solution of 15 April 2021.
Where is it now
- Distance from Sun
- 1.337 AU
- True anomaly
- 165.12°
- Distance from Earth
- 1.072 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 56m 18s
- Declination
- +01° 37′ 25″
- Constellation
- Aquila
- Distance from Earth
- 1.08 AU
- Elongation from the Sun
- 80.54° — 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.
Your location stays in your browser and is sent only for this calculation. Using a what3words address is optional; if you do, the three words go to what3words to be converted and we don't record them. Set a location first, then you can save an email alert for this object. See our privacy policy.
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
- 0.3377
- Inclination
- 18.09°
- Orbital period
- 374.6 days
- Perihelion
- 0.674 AU
- Aphelion
- 1.36 AU
- Longitude of ascending node
- 246.02°
- Argument of periapsis
- 299.36°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 23.3 LD
- 0.06 AU
- Tisserand (Jupiter)
- 5.908
Orbit quality
Orbit poorly determined (uncertainty code 7).
- Observations used
- 38
- Data arc
- 13 days
- First observed
- 3 December 2015
- Last observed
- 16 December 2015
- Residual RMS
- 0.5 ″
- Solution · Otto Matic
- 15 April 2021
Visual & observation
- Absolute magnitude (H)
- 23.4
Discovery & classification
Close approaches 29 on record
Top-down view of the ecliptic, Earth at the centre, for the 2109-07-20 23:30 UTC close approach of 2015 XQ1. Catalogue miss distance 141.1 LD · 5.42 × 10⁷ km. The curve is the geocentric path from 2109-07-17 to 2109-07-23, 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 |
|---|---|---|---|---|
| 2109-07-20 23:30:00 | Earth | 0.3624 AU | 141.1 LD | 20.8 km/s |
| 2110-07-29 20:50:00 | Earth | 0.4864 AU | 189.3 LD | 24.7 km/s |
| 2137-11-26 18:53:00 | Earth | 0.3773 AU | 146.8 LD | 23.3 km/s |
| 2138-12-02 14:18:00 | Earth | 0.2305 AU | 89.7 LD | 19 km/s |
| 2139-12-07 03:59:00 | Earth | 0.094 AU | 36.6 LD | 15.1 km/s |
| 2177-11-24 09:15:00 | Earth | 0.4437 AU | 172.7 LD | 25.3 km/s |
| 2178-11-30 16:33:00 | Earth | 0.2899 AU | 112.8 LD | 20.7 km/s |
| 2179-12-06 02:13:00 | Earth | 0.1395 AU | 54.3 LD | 16.4 km/s |
| 2180-12-07 22:53:00 | Earth | 0.0706 AU | 27.5 LD | 12.8 km/s |
| 2190-07-16 21:03:00 | Earth | 0.3061 AU | 119.1 LD | 19 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