(5407) 1992 AX

(5407) 1992 AX

Discovery[1]
Discovered by	Seiji Ueda and Hiroshi Kaneda
Discovery site	Kushiro, Hokkaidō
Discovery date	4 January 1992
Designations
Alternative names	1987 BH2
Orbital characteristics[1][2]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc	23380 days (64.01 yr)
Aphelion	2.3484 AU (351.32 Gm)
Perihelion	1.3279 AU (198.65 Gm)
Semi-major axis	1.8382 AU (274.99 Gm)
Eccentricity	0.27758
Orbital period	2.49 yr (910.29 d)
Mean anomaly	149.33°
Mean motion	0° 23^m 43.728^s / day
Inclination	11.390°
Longitude of ascending node	117.76°
Argument of perihelion	108.73°
Known satellites	1
Earth MOID	0.376704 AU (56.3541 Gm)
Jupiter MOID	2.70035 AU (403.967 Gm)
Proper orbital elements
Proper mean motion	0.3955 deg / yr
Proper orbital period	910.2402 yr (332465.234 d)
Physical characteristics
Dimensions	4 km (2.5 mi)[3]
Rotation period	2.5488 h (0.10620 d)
Sidereal rotation period	2.5488 h[1]
Geometric albedo	0.16[2]
Spectral type	S[1]
Absolute magnitude (H)	13.9[1]

(5407) 1992 AX is a Mars-crossing minor planet. It was discovered by Seiji Ueda and Hiroshi Kaneda in Kushiro, Hokkaidō, on January 4, 1992.

Mars-Crossing

1992 AX makes occasional close approaches to Mars. Its next close approach, on January 22, 2027, will bring it 11,260,000 km (0.0753 AU) from Mars.^[1]

Moon

1992 AX has one natural satellite, S/1997 (5407) 1. However, the true presence of a moon is still considered inconclusive.^[2] If it exists, the moon completes one orbit around 1992 AX every 13.5196 hours at a distance of 6.8 km. S/1997 (5407) 1 is 1.2 km wide.^[2] From the surface of 1992 AX, S/1997 (5407) 1 would have an angular diameter of roughly 14.3°.^{[lower-alpha 1]} For comparison, the Sun appears to be 0.5° from Earth.

Gallery

Orbit of 1992 AX

See also

• List of minor planets: 5001–6000

Notes

1. Calculated by solving the equation $\scriptstyle{\mathrm{tan}\left(\frac{\theta}{2}\right) = \frac{\mathrm{radius~of~moon}}{\mathrm{distance~from~surface~of~asteroid~to~center~of~moon}}}$.

References

1. "JPL Small-Body Database Browser: 5407 (1992 AX)". Jet Propulsion Laboratory. Retrieved 4 April 2016.
2. Johnston, W.M. (September 1, 2005). "(5407) 1992 AX". Johnston Archive. Retrieved 27 November 2013.
3. "Two-Period Lightcurves of 1996 FG 3, 1998 PG, and (5407) 1992 AX: One Probable and Two Possible Binary Asteroids". Icarus 146 (1): 190–203. July 2000. Bibcode:2000Icar..146..190P. doi:10.1006/icar.2000.6375.

External links

• (5407) 1992 AX at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters