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Asteroid Near-Earth

2016 JJ17

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(2016 JJ17)

Where is it now

Distance from Sun
1.226 AU
True anomaly
197.73°
Distance from Earth
1.772 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 2016 JJ17 — 1.226 AU from the Sun 2016 JJ17
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2016 JJ17 is 1.772 AU from Earth today (14.7 light-minutes).

In the sky

Right ascension
16h 40m 52s
Declination
-20° 47′ 27″
Constellation
Ophiuchus
Distance from Earth
1.77 AU
Elongation from the Sun
41.77° — 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
0.95 AU
Eccentricity
0.3191
Inclination
5.6°
Orbital period
338.5 days
Perihelion
0.647 AU
Aphelion
1.254 AU
Longitude of ascending node
125.27°
Argument of periapsis
320.92°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 13.6 LD
0.035 AU
Tisserand (Jupiter)
6.281

Orbit quality

Orbit reasonably well determined (uncertainty code 3).

Observations used
59
Data arc
424 days
First observed
4 May 2016
Last observed
2 July 2017
Residual RMS
0.63 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
22.9

Discovery & classification

Aten Near-Earth Object

Close approaches 200 on record

Flyby geometry
Ecliptic flyby of 2016 JJ17 at 2028-04-21 10:14 UTC Top-down view of the ecliptic, Earth at the centre, for the 2028-04-21 10:14 UTC close approach of 2016 JJ17. Catalogue miss distance 102.0 LD · 3.92 × 10⁷ km. The curve is the geocentric path from 2028-04-18 to 2028-04-24, 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 102.0 LD · 3.92 × 10⁷ km 2028-04-21 10:14 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2028-04-21 10:14 UTC close approach of 2016 JJ17. Catalogue miss distance 102.0 LD · 3.92 × 10⁷ km. The curve is the geocentric path from 2028-04-18 to 2028-04-24, 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
2028-01-12 00:19:00 Venus 0.0498 AU 19.4 LD 10.7 km/s
2028-04-21 10:14:00 Earth 0.2621 AU 102.0 LD 16.4 km/s
2029-03-02 13:37:00 Earth 0.2261 AU 88.0 LD 6.7 km/s
2029-05-10 08:46:00 Earth 0.2035 AU 79.2 LD 6.5 km/s
2029-11-20 02:52:00 Venus 0.0405 AU 15.8 LD 8.6 km/s
2029-12-20 00:25:00 Earth 0.3401 AU 132.4 LD 12.6 km/s
2030-07-19 19:57:00 Earth 0.1972 AU 76.7 LD 7.1 km/s
2030-10-08 13:07:00 Earth 0.2573 AU 100.2 LD 6.4 km/s
2031-08-13 03:12:00 Earth 0.2037 AU 79.3 LD 15.1 km/s
2031-10-03 13:58:00 Venus 0.0639 AU 24.9 LD 7 km/s

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

Sources