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Asteroid Near-Earth

344074

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344074 (1997 UH9)

Where is it now

Distance from Sun
0.927 AU
True anomaly
229.79°
Distance from Earth
1.041 AU
As of
19 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 — 0.996 AU from the Sun Earth 344074 — 0.927 AU from the Sun 344074
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 344074 is 1.041 AU from Earth today (8.7 light-minutes).

In the sky

Right ascension
10h 52m 47s
Declination
+25° 52′ 32″
Constellation
Leo Minor
Distance from Earth
1.04 AU
Elongation from the Sun
54.05° — near the Sun — look low at dusk or dawn

Favours the northern hemisphere; low or below the horizon from far south.

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
0.83 AU
Eccentricity
0.4747
Inclination
25.49°
Orbital period
276.2 days
Perihelion
0.436 AU
Aphelion
1.224 AU
Longitude of ascending node
42.38°
Argument of periapsis
180.93°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 86.7 LD
0.2227 AU
Tisserand (Jupiter)
6.904

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
803
Data arc
28.17 years
First observed
29 October 1997
Last observed
31 December 2025
Residual RMS
0.45 ″
Solution · Otto Matic
23 September 2026

Visual & observation

Absolute magnitude (H)
19
Spectral type (SMASS)
Sq

Discovery & classification

Discovered by
NEAT
Discovery date
29 October 1997
Discovery site
Haleakala

Also known as 1997 UH9

Aten Near-Earth Object

Close approaches 86 on record

When (UTC) Body Distance Lunar distances Relative speed
2032-04-06 23:42:00 Mercury 0.0721 AU 28.1 LD 21.5 km/s
2032-04-06 23:42:00 Merc 0.0721 AU 28.1 LD 21.5 km/s
2037-07-20 21:58:00 Mercury 0.0411 AU 16.0 LD 21 km/s
2037-07-20 21:58:00 Merc 0.0411 AU 16.0 LD 21 km/s
2042-11-03 15:28:00 Merc 0.0106 AU 4.1 LD 21.5 km/s
2042-11-03 15:28:00 Mercury 0.0106 AU 4.1 LD 21.5 km/s
2048-02-18 07:36:00 Merc 0.0237 AU 9.2 LD 23.1 km/s
2048-02-18 07:36:00 Mercury 0.0237 AU 9.2 LD 23.1 km/s
2053-06-04 05:45:00 Merc 0.0624 AU 24.3 LD 25.9 km/s
2053-06-04 05:45:00 Mercury 0.0624 AU 24.3 LD 25.9 km/s

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

Sources