2021 GM1 is an asteroid in the Aten orbit class. Its orbit takes it from 0.95 AU to 1 AU from the Sun; one orbit takes 353.3 days. Orbit from the JPL solution of 20 December 2022.
Where is it now
- Distance from Sun
- 0.965 AU
- True anomaly
- 58.87°
- Distance from Earth
- 1.123 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
- 10h 37m 01s
- Declination
- +07° 40′ 48″
- Constellation
- Leo
- Distance from Earth
- 1.12 AU
- Elongation from the Sun
- 53.8° — 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
- 0.978 AU
- Eccentricity
- 0.0255
- Inclination
- 1.18°
- Orbital period
- 353.3 days
- Perihelion
- 0.953 AU
- Aphelion
- 1.003 AU
- Longitude of ascending node
- 176.22°
- Argument of periapsis
- 226.15°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 0.1 LD
- 0.0002 AU
- Tisserand (Jupiter)
- 6.187
Orbit quality
Orbit very well determined (uncertainty code 1).
- Observations used
- 113
- Data arc
- 344 days
- First observed
- 26 May 2020
- Last observed
- 5 May 2021
- Residual RMS
- 0.37 ″
- Solution · Otto Matic
- 20 December 2022
Visual & observation
- Absolute magnitude (H)
- 30.4
Discovery & classification
Listed by JPL impact monitoring; see the Sentry table for current probabilities.
Close approaches 36 on record
Top-down view of the ecliptic, Earth at the centre, for the 2049-03-06 15:19 UTC close approach of 2021 GM1. Catalogue miss distance 134.6 LD · 5.17 × 10⁷ km. The curve is the geocentric path from 2049-03-03 to 2049-03-09, 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. 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 |
|---|---|---|---|---|
| 2049-03-06 15:19:00 | Earth | 0.3459 AU | 134.6 LD | 10.8 km/s |
| 2050-02-20 13:24:00 | Earth | 0.1439 AU | 56.0 LD | 4.8 km/s |
| 2050-11-15 02:58:00 | Earth | 0.0377 AU | 14.7 LD | 0.9 km/s |
| 2051-04-16 21:40:00 | Earth | 0.0264 AU | 10.3 LD | 1.4 km/s |
| 2052-04-20 01:09:00 | Earth | 0.3316 AU | 129.0 LD | 10.6 km/s |
| 2069-03-01 12:21:00 | Earth | 0.237 AU | 92.2 LD | 7.7 km/s |
| 2069-11-18 03:55:00 | Earth | 0.0557 AU | 21.7 LD | 1.2 km/s |
| 2070-04-20 00:30:00 | Earth | 0.0598 AU | 23.3 LD | 2.4 km/s |
| 2071-04-16 14:47:00 | Earth | 0.3998 AU | 155.6 LD | 12.7 km/s |
| 2086-03-03 23:20:00 | Earth | 0.264 AU | 102.8 LD | 8.5 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