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Asteroid Near-Earth

693691

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693691 (2015 KJ157)

Where is it now

Distance from Sun
1.113 AU
True anomaly
146.19°
Distance from Earth
1.973 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 693691 — 1.113 AU from the Sun 693691
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 693691 is 1.973 AU from Earth today (16.4 light-minutes).

In the sky

Right ascension
13h 44m 09s
Declination
+10° 30′ 39″
Constellation
Boötes
Distance from Earth
1.98 AU
Elongation from the Sun
21.9° — near the Sun — look low at dusk or dawn

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
0.945 AU
Eccentricity
0.7373
Inclination
36.9°
Orbital period
335.5 days
Perihelion
0.248 AU
Aphelion
1.642 AU
Longitude of ascending node
101.46°
Argument of periapsis
302.07°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 66.4 LD
0.1707 AU
Tisserand (Jupiter)
5.967

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
275
Data arc
23.04 years
First observed
23 June 2003
Last observed
7 July 2026
Residual RMS
0.44 ″
Solution · Otto Matic
14 October 2026

Visual & observation

Absolute magnitude (H)
19.2

Discovery & classification

Discovered by
Pan-STARRS 2
Discovery date
30 May 2015
Discovery site
Haleakala

Also known as 2015 KJ157

Aten Near-Earth Object

Close approaches 120 on record

Flyby geometry
Ecliptic flyby of 693691 at 2038-06-20 16:23 UTC Top-down view of the ecliptic, Earth at the centre, for the 2038-06-20 16:23 UTC close approach of 693691. Catalogue miss distance 66.8 LD · 2.57 × 10⁷ km. The curve is the geocentric path from 2038-06-17 to 2038-06-23, 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 66.8 LD · 2.57 × 10⁷ km 2038-06-20 16:23 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2038-06-20 16:23 UTC close approach of 693691. Catalogue miss distance 66.8 LD · 2.57 × 10⁷ km. The curve is the geocentric path from 2038-06-17 to 2038-06-23, 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
2032-03-05 03:00:00 Mercury 0.075 AU 29.2 LD 49.5 km/s
2032-03-05 03:00:00 Merc 0.075 AU 29.2 LD 49.5 km/s
2037-08-15 18:37:00 Mercury 0.0937 AU 36.5 LD 30.1 km/s
2037-08-15 18:37:00 Merc 0.0937 AU 36.5 LD 30.1 km/s
2038-06-20 16:23:00 Earth 0.1717 AU 66.8 LD 29.6 km/s
2042-04-13 04:24:00 Mercury 0.0929 AU 36.1 LD 34.8 km/s
2042-04-13 04:24:00 Merc 0.0929 AU 36.1 LD 34.8 km/s
2046-11-13 20:07:00 Mercury 0.0987 AU 38.4 LD 52.2 km/s
2046-11-13 20:07:00 Merc 0.0987 AU 38.4 LD 52.2 km/s
2049-06-25 06:26:00 Earth 0.1907 AU 74.2 LD 26.8 km/s

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

Sources