Skip to content
Public Universe
Asteroid Near-Earth

2018 TF5

Add to an observing list or journal →

(2018 TF5)

Where is it now

Distance from Sun
1.2 AU
True anomaly
198.83°
Distance from Earth
1.04 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 2018 TF5 — 1.2 AU from the Sun 2018 TF5
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2018 TF5 is 1.04 AU from Earth today (8.7 light-minutes).

In the sky

Right ascension
09h 04m 18s
Declination
+08° 16′ 02″
Constellation
Cancer
Distance from Earth
1.03 AU
Elongation from the Sun
72.39° — well clear of the Sun

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
0.905 AU
Eccentricity
0.368
Inclination
7.6°
Orbital period
314.4 days
Perihelion
0.572 AU
Aphelion
1.238 AU
Longitude of ascending node
196.44°
Argument of periapsis
47.58°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 5.1 LD
0.0132 AU
Tisserand (Jupiter)
6.519

Orbit quality

Orbit reasonably well determined (uncertainty code 5).

Observations used
31
Data arc
10 days
First observed
10 October 2018
Last observed
20 October 2018
Residual RMS
0.37 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
25.4

Discovery & classification

Aten Near-Earth Object

Close approaches 163 on record

Flyby geometry
Ecliptic flyby of 2018 TF5 at 2030-10-10 01:01 UTC Top-down view of the ecliptic, Earth at the centre, for the 2030-10-10 01:01 UTC close approach of 2018 TF5. Catalogue miss distance 81.7 LD · 3.14 × 10⁷ km. The curve is the geocentric path from 2030-10-07 to 2030-10-13, 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 81.7 LD · 3.14 × 10⁷ km 2030-10-10 01:01 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2030-10-10 01:01 UTC close approach of 2018 TF5. Catalogue miss distance 81.7 LD · 3.14 × 10⁷ km. The curve is the geocentric path from 2030-10-07 to 2030-10-13, 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
2027-01-25 20:23:00 Venus 0.083 AU 32.3 LD 12.3 km/s
2030-10-10 01:01:00 Earth 0.2099 AU 81.7 LD 17.9 km/s
2031-05-15 10:31:00 Venus 0.0802 AU 31.2 LD 12.9 km/s
2031-06-27 01:31:00 Earth 0.4329 AU 168.5 LD 15.1 km/s
2031-12-15 09:39:00 Earth 0.2635 AU 102.5 LD 8.8 km/s
2032-03-18 00:12:00 Earth 0.323 AU 125.7 LD 10.3 km/s
2035-09-02 11:29:00 Venus 0.0813 AU 31.7 LD 13.6 km/s
2036-10-15 06:50:00 Earth 0.3589 AU 139.7 LD 22.6 km/s
2037-07-15 18:10:00 Earth 0.4 AU 155.7 LD 12.5 km/s
2037-11-24 21:05:00 Earth 0.2733 AU 106.3 LD 9.2 km/s

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

Sources