613995 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.67 AU to 1.34 AU from the Sun; one orbit takes 368 days; it is about 0.19 km across. Discovered 14 July 2008 by Siding Spring Survey. Orbit from the JPL solution of 26 August 2026.
Where is it now
- Distance from Sun
- 0.698 AU
- True anomaly
- 326.56°
- Distance from Earth
- 0.502 AU
- As of
- 3 November 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.
In the sky
- Right ascension
- 17h 27m 15s
- Declination
- -25° 02′ 11″
- Constellation
- Ophiuchus
- Distance from Earth
- 0.5 AU
- Elongation from the Sun
- 41.21° — near the Sun — look low at dusk or dawn
Favours the southern hemisphere; low or below the horizon from far north.
From your location
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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
- 1.005 AU
- Eccentricity
- 0.334
- Inclination
- 1.43°
- Orbital period
- 368 days
- Perihelion
- 0.669 AU
- Aphelion
- 1.341 AU
- Longitude of ascending node
- 78.32°
- Argument of periapsis
- 328.17°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 5.9 LD
- 0.0152 AU
- Tisserand (Jupiter)
- 6.006
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 165
- Data arc
- 16.81 years
- First observed
- 14 July 2008
- Last observed
- 5 May 2025
- Residual RMS
- 0.47 ″
- Solution · Otto Matic
- 26 August 2026
Physical properties
- Mean radius
- 0.10 km
Visual & observation
- Geometric albedo
- 0.023
- Absolute magnitude (H)
- 22.85
Discovery & classification
- Discovered by
- Siding Spring Survey
- Discovery date
- 14 July 2008
- Discovery site
- Siding Spring
Also known as 2008 NP3
Close approaches 61 on record
Top-down view of the ecliptic, Earth at the centre, for the 2032-03-08 15:14 UTC close approach of 613995. Catalogue miss distance 74.4 LD · 2.86 × 10⁷ km. The curve is the geocentric path from 2032-03-05 to 2032-03-11, 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.
| When (UTC) | Body | Distance | Lunar distances | Relative speed |
|---|---|---|---|---|
| 2029-11-11 07:33:00 | Venus | 0.0411 AU | 16.0 LD | 7.1 km/s |
| 2032-03-08 15:14:00 | Earth | 0.1912 AU | 74.4 LD | 6.3 km/s |
| 2033-02-27 02:56:00 | Earth | 0.1533 AU | 59.6 LD | 6 km/s |
| 2034-02-21 11:52:00 | Earth | 0.112 AU | 43.6 LD | 6.7 km/s |
| 2035-02-20 20:08:00 | Earth | 0.072 AU | 28.0 LD | 7.8 km/s |
| 2036-02-21 18:28:00 | Earth | 0.038 AU | 14.8 LD | 9 km/s |
| 2037-02-21 22:41:00 | Earth | 0.024 AU | 9.3 LD | 10 km/s |
| 2038-02-23 10:28:00 | Earth | 0.0471 AU | 18.3 LD | 11.1 km/s |
| 2039-02-25 08:40:00 | Earth | 0.0889 AU | 34.6 LD | 12.4 km/s |
| 2040-02-27 13:49:00 | Earth | 0.1361 AU | 53.0 LD | 13.9 km/s |
Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.
Sources
- visual properties: JPL SBDB (lookup)
- physical properties: JPL SBDB (lookup)
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB