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Asteroid Near-Earth

2003 FK1

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(2003 FK1)

Where is it now

Distance from Sun
0.378 AU
True anomaly
27.3°
Distance from Earth
0.665 AU
As of
15 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 — 0.997 AU from the Sun Earth 2003 FK1 — 0.378 AU from the Sun 2003 FK1
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2003 FK1 is 0.665 AU from Earth today (5.5 light-minutes).

In the sky

Right ascension
12h 30m 19s
Declination
-13° 44′ 16″
Constellation
Corvus
Distance from Earth
0.67 AU
Elongation from the Sun
14.41° — 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
0.708 AU
Eccentricity
0.4857
Inclination
23.35°
Orbital period
217.4 days
Perihelion
0.364 AU
Aphelion
1.051 AU
Longitude of ascending node
177.59°
Argument of periapsis
196.51°
Epoch · J2000
2452725.5
Orbit class · ATE
Aten
Earth MOID · 5.4 LD
0.0139 AU
Tisserand (Jupiter)
7.946

Orbit quality

Orbit very uncertain — the object may be effectively lost (uncertainty code 8).

Observations used
27
Data arc
7 days
First observed
24 March 2003
Last observed
31 March 2003
Residual RMS
0.71 ″
Solution · Otto Matic
14 April 2021

Visual & observation

Absolute magnitude (H)
23

Discovery & classification

Aten Near-Earth Object

Close approaches 55 on record

Flyby geometry
Ecliptic flyby of 2003 FK1 at 2062-04-11 01:38 UTC Top-down view of the ecliptic, Earth at the centre, for the 2062-04-11 01:38 UTC close approach of 2003 FK1. Catalogue miss distance 110.4 LD · 4.24 × 10⁷ km. The curve is the geocentric path from 2062-04-08 to 2062-04-14, 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 110.4 LD · 4.24 × 10⁷ km 2062-04-11 01:38 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2062-04-11 01:38 UTC close approach of 2003 FK1. Catalogue miss distance 110.4 LD · 4.24 × 10⁷ km. The curve is the geocentric path from 2062-04-08 to 2062-04-14, 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
2062-04-11 01:38:00 Earth 0.2836 AU 110.4 LD 16.7 km/s
2064-11-16 08:59:00 Mercury 0.034 AU 13.2 LD 28.6 km/s
2064-11-16 08:59:00 Merc 0.034 AU 13.2 LD 28.6 km/s
2065-04-11 22:12:00 Earth 0.3734 AU 145.3 LD 20.2 km/s
2066-03-24 21:56:00 Earth 0.4541 AU 176.7 LD 27.2 km/s
2068-04-09 15:59:00 Earth 0.4741 AU 184.5 LD 24.2 km/s
2069-03-20 03:43:00 Earth 0.3305 AU 128.6 LD 23.2 km/s
2122-03-17 04:25:00 Earth 0.14 AU 54.5 LD 17.4 km/s
2125-03-17 23:07:00 Earth 0.0208 AU 8.1 LD 14.6 km/s
2125-07-31 04:41:00 Merc 0.0798 AU 31.1 LD 33.3 km/s

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

Sources