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Asteroid Near-Earth

2017 OO1

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(2017 OO1)

Where is it now

Distance from Sun
1.003 AU
True anomaly
155.32°
Distance from Earth
1.601 AU
As of
20 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 2017 OO1 — 1.003 AU from the Sun 2017 OO1
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2017 OO1 is 1.601 AU from Earth today (13.3 light-minutes).

In the sky

Right ascension
16h 07m 58s
Declination
-24° 48′ 27″
Constellation
Scorpius
Distance from Earth
1.6 AU
Elongation from the Sun
36.91° — near the Sun — look low at dusk or dawn

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
0.894 AU
Eccentricity
0.1376
Inclination
20.03°
Orbital period
309 days
Perihelion
0.771 AU
Aphelion
1.018 AU
Longitude of ascending node
298.28°
Argument of periapsis
186.14°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 0.1 LD
0.0003 AU
Tisserand (Jupiter)
6.589

Orbit quality

Orbit reasonably well determined (uncertainty code 4).

Observations used
101
Data arc
9 days
First observed
22 July 2017
Last observed
31 July 2017
Residual RMS
0.22 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
24.5

Discovery & classification

Listed by JPL impact monitoring; see the Sentry table for current probabilities.

Aten Near-Earth Object

Close approaches 119 on record

Flyby geometry
Ecliptic flyby of 2017 OO1 at 2028-07-20 22:34 UTC Top-down view of the ecliptic, Earth at the centre, for the 2028-07-20 22:34 UTC close approach of 2017 OO1. Catalogue miss distance 8.63 LD · 3.32 × 10⁶ km. The curve is the geocentric path from 2028-07-17 to 2028-07-23, 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 8.63 LD · 3.32 × 10⁶ km 2028-07-20 22:34 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2028-07-20 22:34 UTC close approach of 2017 OO1. Catalogue miss distance 8.63 LD · 3.32 × 10⁶ km. The curve is the geocentric path from 2028-07-17 to 2028-07-23, 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
2028-07-20 22:34:00 Earth 0.0222 AU 8.6 LD 10.1 km/s
2028-11-11 19:24:00 Earth 0.3464 AU 134.8 LD 9.9 km/s
2030-08-25 01:30:00 Venus 0.1147 AU 44.7 LD 14.5 km/s
2033-07-23 10:10:00 Earth 0.3599 AU 140.1 LD 15.6 km/s
2034-01-14 12:19:00 Earth 0.2142 AU 83.4 LD 13 km/s
2037-05-30 18:53:00 Venus 0.0557 AU 21.7 LD 14.1 km/s
2039-03-12 19:10:00 Earth 0.3298 AU 128.3 LD 11.3 km/s
2039-07-22 05:58:00 Earth 0.1499 AU 58.3 LD 10.8 km/s
2044-03-05 08:42:00 Venus 0.0823 AU 32.0 LD 14.5 km/s
2044-07-21 14:12:00 Earth 0.2327 AU 90.6 LD 12.8 km/s

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

Sources