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Asteroid Near-Earth

2017 TZ5

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(2017 TZ5)

Where is it now

Distance from Sun
0.488 AU
True anomaly
340.61°
Distance from Earth
1.479 AU
As of
16 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 2017 TZ5 — 0.488 AU from the Sun 2017 TZ5
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2017 TZ5 is 1.479 AU from Earth today (12.3 light-minutes).

In the sky

Right ascension
13h 42m 55s
Declination
-10° 48′ 31″
Constellation
Virgo
Distance from Earth
1.48 AU
Elongation from the Sun
3.81° — 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
0.797 AU
Eccentricity
0.3981
Inclination
2.24°
Orbital period
260 days
Perihelion
0.48 AU
Aphelion
1.115 AU
Longitude of ascending node
24.69°
Argument of periapsis
208.31°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 1.6 LD
0.0041 AU
Tisserand (Jupiter)
7.244

Orbit quality

Orbit poorly determined (uncertainty code 7).

Observations used
37
Data arc
6 days
First observed
13 October 2017
Last observed
19 October 2017
Residual RMS
0.56 ″
Solution · Otto Matic
7 August 2022

Visual & observation

Absolute magnitude (H)
26.81

Discovery & classification

Aten Near-Earth Object

Close approaches 179 on record

Flyby geometry
Ecliptic flyby of 2017 TZ5 at 2027-11-15 22:45 UTC Top-down view of the ecliptic, Earth at the centre, for the 2027-11-15 22:45 UTC close approach of 2017 TZ5. Catalogue miss distance 49.5 LD · 1.9 × 10⁷ km. The curve is the geocentric path from 2027-11-12 to 2027-11-18, 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 49.5 LD · 1.9 × 10⁷ km 2027-11-15 22:45 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2027-11-15 22:45 UTC close approach of 2017 TZ5. Catalogue miss distance 49.5 LD · 1.9 × 10⁷ km. The curve is the geocentric path from 2027-11-12 to 2027-11-18, 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
2027-11-15 22:45:00 Earth 0.1271 AU 49.5 LD 8.3 km/s
2028-10-31 14:14:00 Venus 0.018 AU 7.0 LD 13.7 km/s
2032-07-10 13:25:00 Merc 0.0469 AU 18.3 LD 15 km/s
2032-07-10 13:25:00 Mercury 0.0469 AU 18.3 LD 15 km/s
2032-08-16 15:29:00 Earth 0.3614 AU 140.7 LD 6.5 km/s
2032-11-28 08:19:00 Earth 0.1193 AU 46.4 LD 8.3 km/s
2033-03-20 17:27:00 Mercury 0.0274 AU 10.7 LD 12.8 km/s
2033-03-20 17:27:00 Merc 0.0274 AU 10.7 LD 12.8 km/s
2034-10-24 05:31:00 Earth 0.4771 AU 185.7 LD 26.1 km/s
2037-08-02 22:26:00 Earth 0.3999 AU 155.6 LD 9.9 km/s

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

Sources