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Asteroid Near-Earth Potentially hazardous

437841

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437841 (1998 HD14)

Where is it now

Distance from Sun
1.223 AU
True anomaly
157.78°
Distance from Earth
2.125 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 437841 — 1.223 AU from the Sun 437841
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 437841 is 2.125 AU from Earth today (17.7 light-minutes).

In the sky

Right ascension
15h 07m 05s
Declination
-13° 31′ 29″
Constellation
Libra
Distance from Earth
2.13 AU
Elongation from the Sun
18.36° — too close to the Sun to observe

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.

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
0.963 AU
Eccentricity
0.3126
Inclination
7.81°
Orbital period
345.3 days
Perihelion
0.662 AU
Aphelion
1.264 AU
Longitude of ascending node
183.75°
Argument of periapsis
260.93°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 13.3 LD
0.0341 AU
Tisserand (Jupiter)
6.211

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
210
Data arc
21.18 years
First observed
25 April 1998
Last observed
29 June 2019
Residual RMS
0.47 ″
Solution · Otto Matic
5 January 2023

Visual & observation

Absolute magnitude (H)
21

Discovery & classification

Discovered by
NEAT
Discovery date
25 April 1998
Discovery site
Haleakala

Also known as 1998 HD14

Aten Near-Earth Object Potentially Hazardous Asteroid

Close approaches 184 on record

Flyby geometry
Ecliptic flyby of 437841 at 2032-04-18 13:33 UTC Top-down view of the ecliptic, Earth at the centre, for the 2032-04-18 13:33 UTC close approach of 437841. Catalogue miss distance 109.9 LD · 4.22 × 10⁷ km. The curve is the geocentric path from 2032-04-15 to 2032-04-21, 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. Sun 109.9 LD · 4.22 × 10⁷ km 2032-04-18 13:33 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2032-04-18 13:33 UTC close approach of 437841. Catalogue miss distance 109.9 LD · 4.22 × 10⁷ km. The curve is the geocentric path from 2032-04-15 to 2032-04-21, 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.

JPL Horizons

When (UTC) Body Distance Lunar distances Relative speed
2032-04-18 13:33:00 Earth 0.2824 AU 109.9 LD 17.8 km/s
2033-01-06 02:34:00 Venus 0.0985 AU 38.3 LD 7.7 km/s
2033-04-05 07:41:00 Earth 0.0646 AU 25.1 LD 8.2 km/s
2034-01-22 10:33:00 Earth 0.3075 AU 119.7 LD 9.8 km/s
2034-05-30 23:51:00 Earth 0.2804 AU 109.1 LD 7.3 km/s
2034-12-03 12:56:00 Earth 0.3354 AU 130.5 LD 11.6 km/s
2035-07-30 17:50:00 Earth 0.2344 AU 91.2 LD 6.1 km/s
2035-10-06 15:41:00 Earth 0.2301 AU 89.5 LD 7.3 km/s
2036-08-21 05:25:00 Earth 0.1262 AU 49.1 LD 12.5 km/s
2037-08-05 15:44:00 Earth 0.4374 AU 170.2 LD 22.2 km/s

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

Sources