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Asteroid Near-Earth

2020 YH1

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(2020 YH1)

Where is it now

Distance from Sun
0.833 AU
True anomaly
26.37°
Distance from Earth
1.697 AU
As of
22 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.

Sun Earth — 0.995 AU from the Sun Earth 2020 YH1 — 0.833 AU from the Sun 2020 YH1
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2020 YH1 is 1.697 AU from Earth today (14.1 light-minutes).

In the sky

Right ascension
15h 05m 18s
Declination
-19° 16′ 28″
Constellation
Libra
Distance from Earth
1.7 AU
Elongation from the Sun
19.91° — too close to the Sun to observe

Favours the southern hemisphere; low or below the horizon from far north.

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.

How do I find my coordinates?

Google Maps on a computer

  1. Right-click the spot where you'll be observing.
  2. The first line of the menu is the coordinates, e.g. 51.50722, -0.12758 — click it and they're copied.
  3. Paste them above.

Google Maps on a phone

  1. Press and hold the spot to drop a pin.
  2. The coordinates appear in the search bar (or on the pin's card) — tap to copy, then paste above.

A full Google Maps link works too, but the short maps.app.goo.gl share links don't carry coordinates — copy the numbers instead. We round to about a kilometre; that's all the sky calculation needs.

Know your what3words address? Paste it, e.g. ///filled.count.soap. This is optional — the three words are sent to what3words to convert them, and we don't store the address or the result.

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
0.939 AU
Eccentricity
0.1231
Inclination
11.29°
Orbital period
332.5 days
Perihelion
0.824 AU
Aphelion
1.055 AU
Longitude of ascending node
271.89°
Argument of periapsis
314.46°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 9.9 LD
0.0255 AU
Tisserand (Jupiter)
6.367

Orbit quality

Orbit poorly determined (uncertainty code 6).

Observations used
24
Data arc
3 days
First observed
19 December 2020
Last observed
22 December 2020
Residual RMS
0.44 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
27.2

Discovery & classification

Aten Near-Earth Object

Close approaches 91 on record

Flyby geometry
Ecliptic flyby of 2020 YH1 at 2029-09-23 19:09 UTC Top-down view of the ecliptic, Earth at the centre, for the 2029-09-23 19:09 UTC close approach of 2020 YH1. Catalogue miss distance 174.5 LD · 6.71 × 10⁷ km. The curve is the geocentric path from 2029-09-20 to 2029-09-26, 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. Sun 174.5 LD · 6.71 × 10⁷ km 2029-09-23 19:09 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2029-09-23 19:09 UTC close approach of 2020 YH1. Catalogue miss distance 174.5 LD · 6.71 × 10⁷ km. The curve is the geocentric path from 2029-09-20 to 2029-09-26, 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.

JPL Horizons

When (UTC) Body Distance Lunar distances Relative speed
2029-09-23 19:09:00 Earth 0.4484 AU 174.5 LD 16.2 km/s
2030-07-11 10:57:00 Earth 0.1515 AU 58.9 LD 7.4 km/s
2030-12-18 07:16:00 Earth 0.0862 AU 33.6 LD 6.1 km/s
2031-12-23 15:36:00 Earth 0.4508 AU 175.4 LD 18.2 km/s
2040-08-02 03:01:00 Earth 0.1577 AU 61.4 LD 7.3 km/s
2040-11-23 04:33:00 Earth 0.1742 AU 67.8 LD 6.3 km/s
2041-04-09 06:57:00 Earth 0.2397 AU 93.3 LD 5.5 km/s
2041-12-27 00:36:00 Earth 0.3315 AU 129.0 LD 14.7 km/s
2045-01-18 16:15:00 Venus 0.1241 AU 48.3 LD 8.8 km/s
2050-08-29 10:04:00 Earth 0.2187 AU 85.1 LD 8.6 km/s

Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.

Sources