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Asteroid Near-Earth

2013 RG74

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(2013 RG74)

Where is it now

Distance from Sun
1.092 AU
True anomaly
165.03°
Distance from Earth
1.053 AU
As of
15 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 2013 RG74 — 1.092 AU from the Sun 2013 RG74
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2013 RG74 is 1.053 AU from Earth today (8.8 light-minutes).

In the sky

Right ascension
17h 48m 21s
Declination
-27° 25′ 26″
Constellation
Sagittarius
Distance from Earth
1.06 AU
Elongation from the Sun
64.31° — well clear of the Sun

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
0.693 AU
Eccentricity
0.7016
Inclination
6.48°
Orbital period
210.8 days
Perihelion
0.207 AU
Aphelion
1.179 AU
Longitude of ascending node
359.23°
Argument of periapsis
157.73°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 0.0 LD
0.0001 AU
Tisserand (Jupiter)
8.024

Orbit quality

Orbit poorly determined (uncertainty code 7).

Observations used
54
Data arc
8 days
First observed
15 September 2013
Last observed
23 September 2013
Residual RMS
0.27 ″
Solution · Otto Matic
10 September 2022

Visual & observation

Absolute magnitude (H)
23.35

Discovery & classification

Aten Near-Earth Object

Close approaches 370 on record

Flyby geometry
Ecliptic flyby of 2013 RG74 at 2028-09-20 03:46 UTC Top-down view of the ecliptic, Earth at the centre, for the 2028-09-20 03:46 UTC close approach of 2013 RG74. Catalogue miss distance 25.8 LD · 9.91 × 10⁶ km. The curve is the geocentric path from 2028-09-17 to 2028-09-23, 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. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate. Sun 23 Sep 25.8 LD · 9.91 × 10⁶ km 2028-09-20 03:46 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2028-09-20 03:46 UTC close approach of 2013 RG74. Catalogue miss distance 25.8 LD · 9.91 × 10⁶ km. The curve is the geocentric path from 2028-09-17 to 2028-09-23, 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. 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
2027-04-05 17:20:00 Venus 0.068 AU 26.5 LD 23.8 km/s
2028-04-20 09:11:00 Mercury 0.0471 AU 18.3 LD 42.2 km/s
2028-04-20 09:11:00 Merc 0.0471 AU 18.3 LD 42.2 km/s
2028-09-20 03:46:00 Earth 0.0662 AU 25.8 LD 16.1 km/s
2029-08-11 08:13:00 Earth 0.1951 AU 75.9 LD 23.6 km/s
2031-09-15 16:54:00 Venus 0.1303 AU 50.7 LD 31.7 km/s
2032-09-05 06:57:00 Earth 0.1688 AU 65.7 LD 14.7 km/s
2033-08-19 05:33:00 Earth 0.3907 AU 152.1 LD 30.9 km/s
2035-09-15 11:30:00 Earth 0.3003 AU 116.9 LD 27.8 km/s
2036-06-28 01:10:00 Venus 0.0484 AU 18.8 LD 25.7 km/s

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

Sources