2021 PF7 is an asteroid in the Aten orbit class. Its orbit takes it from 0.77 AU to 1.19 AU from the Sun; one orbit takes 355.8 days. Orbit from the JPL solution of 12 August 2021.
Where is it now
- Distance from Sun
- 1.144 AU
- True anomaly
- 212.87°
- Distance from Earth
- 0.248 AU
- As of
- 2 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
- 06h 32m 21s
- Declination
- +14° 49′ 34″
- Constellation
- Gemini
- Distance from Earth
- 0.25 AU
- Elongation from the Sun
- 122.52° — 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
- 0.983 AU
- Eccentricity
- 0.2148
- Inclination
- 1.93°
- Orbital period
- 355.8 days
- Perihelion
- 0.772 AU
- Aphelion
- 1.194 AU
- Longitude of ascending node
- 119.15°
- Argument of periapsis
- 78.69°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 2.2 LD
- 0.0057 AU
- Tisserand (Jupiter)
- 6.143
Orbit quality
Orbit poorly determined (uncertainty code 6).
- Observations used
- 10
- Data arc
- 4 days
- First observed
- 9 August 2021
- Last observed
- 13 August 2021
- Residual RMS
- 0.4 ″
- Solution · Otto Matic
- 12 August 2021
Visual & observation
- Absolute magnitude (H)
- 27.81
Discovery & classification
Close approaches 68 on record
Top-down view of the ecliptic, Earth at the centre, for the 2026-12-26 19:18 UTC close approach of 2021 PF7. Catalogue miss distance 15.5 LD · 5.94 × 10⁶ km. The curve is the geocentric path from 2026-12-23 to 2026-12-29, 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 |
|---|---|---|---|---|
| 2026-12-26 19:18:00 | Earth | 0.0397 AU | 15.5 LD | 7.7 km/s |
| 2027-12-20 07:11:00 | Earth | 0.213 AU | 82.9 LD | 13 km/s |
| 2028-12-12 02:52:00 | Earth | 0.3868 AU | 150.5 LD | 18.4 km/s |
| 2043-09-21 20:56:00 | Venus | 0.0958 AU | 37.3 LD | 4.9 km/s |
| 2054-08-17 09:59:00 | Earth | 0.3966 AU | 154.3 LD | 18.4 km/s |
| 2055-05-26 02:17:00 | Venus | 0.0762 AU | 29.7 LD | 3.6 km/s |
| 2055-08-10 18:45:00 | Earth | 0.2303 AU | 89.6 LD | 13.3 km/s |
| 2056-08-03 07:43:00 | Earth | 0.0588 AU | 22.9 LD | 8.2 km/s |
| 2058-05-22 16:23:00 | Earth | 0.2086 AU | 81.2 LD | 6.4 km/s |
| 2058-09-25 05:26:00 | Earth | 0.1866 AU | 72.6 LD | 5.4 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