2023 HR1 is an asteroid in the Aten orbit class. Its orbit takes it from 0.59 AU to 1.37 AU from the Sun; one orbit takes 352.2 days. Orbit from the JPL solution of 19 April 2023.
Where is it now
- Distance from Sun
- 1.354 AU
- True anomaly
- 170.44°
- Distance from Earth
- 1.892 AU
- As of
- 25 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
- 11h 06m 13s
- Declination
- -08° 54′ 08″
- Constellation
- Crater
- Distance from Earth
- 1.89 AU
- Elongation from the Sun
- 43.52° — near the Sun — look low at dusk or dawn
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
- 0.976 AU
- Eccentricity
- 0.3997
- Inclination
- 20.47°
- Orbital period
- 352.2 days
- Perihelion
- 0.586 AU
- Aphelion
- 1.366 AU
- Longitude of ascending node
- 207.28°
- Argument of periapsis
- 120.71°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 6.4 LD
- 0.0164 AU
- Tisserand (Jupiter)
- 6.075
Orbit quality
Orbit poorly determined (uncertainty code 7).
- Observations used
- 39
- Data arc
- 2 days
- First observed
- 17 April 2023
- Last observed
- 19 April 2023
- Residual RMS
- 0.43 ″
- Solution · Otto Matic
- 19 April 2023
Visual & observation
- Absolute magnitude (H)
- 26.22
Discovery & classification
Close approaches 76 on record
Top-down view of the ecliptic, Earth at the centre, for the 2041-12-11 11:18 UTC close approach of 2023 HR1. Catalogue miss distance 130.9 LD · 5.03 × 10⁷ km. The curve is the geocentric path from 2041-12-08 to 2041-12-14, 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 |
|---|---|---|---|---|
| 2027-06-07 22:43:00 | Venus | 0.0235 AU | 9.2 LD | 18.7 km/s |
| 2041-12-11 11:18:00 | Earth | 0.3364 AU | 130.9 LD | 22.1 km/s |
| 2042-11-25 09:30:00 | Earth | 0.2351 AU | 91.5 LD | 17.2 km/s |
| 2047-03-18 17:47:00 | Earth | 0.4515 AU | 175.7 LD | 11.9 km/s |
| 2048-04-09 11:12:00 | Earth | 0.3185 AU | 124.0 LD | 11.7 km/s |
| 2049-04-21 01:27:00 | Earth | 0.1236 AU | 48.1 LD | 13.4 km/s |
| 2049-08-06 01:11:00 | Venus | 0.105 AU | 40.9 LD | 22.8 km/s |
| 2050-04-17 03:15:00 | Earth | 0.0917 AU | 35.7 LD | 18.1 km/s |
| 2051-04-09 13:45:00 | Earth | 0.3048 AU | 118.6 LD | 24 km/s |
| 2056-05-05 04:43:00 | Venus | 0.0499 AU | 19.4 LD | 17.8 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