3360 Syrinx

(3360) Syrinx
Discovery
Discovered by	Eleanor F. Helin; R. Scott Dunbar
Discovery date	4 November 1981
Designations
Named after	Syrinx
Alternative designations	1981 VA
Minor planet category	Apollo, Mars crosser, alinda family
Orbital characteristics
	Epoch 13 January 2016 (JD 2457400.5)
Aphelion	4.30603 AU (644.173 Gm)
Perihelion	0.62791 AU (93.934 Gm)
Semi-major axis	2.46697 AU (369.053 Gm)
Eccentricity	0.74547
Orbital period (sidereal)	3.87 yr (1415.3 d)
Average orbital speed	15.981 km/s
Mean anomaly	315.35°
Inclination	21.154°
Longitude of ascending node	242.561°
Argument of perihelion	63.457°
Physical characteristics
Dimensions	1.8 km
Mass	~8.4×1012 kg
Mean density	2.0? g/cm³
Equatorial surface gravity	~0.0006 m/s²
Equatorial escape velocity	~0.0011 km/s
Synodic rotation period	? d
Geometric albedo	0.17
Temperature	~174 K
Spectral type	?
Absolute magnitude (H)	15.9

(3360) Syrinx (originally designated 1981 VA) is an Apollo and Mars crosser asteroid discovered in 1981. It approaches Earth to within 40 Gm three times in the 21st century: 33 Gm in 2039, 40 Gm in 2070, and 24 Gm in 2085.

On 2012-Sep-20 it will pass 0.4192 AU (62,710,000 km; 38,970,000 mi) from the Earth^[1] at apparent magnitude 17.0.^[2] By opposition on 23 Nov 2012, it will have brightened to magnitude 16.0.^[2]

For a time, it was the lowest numbered asteroid that had not been named. Since November 2006, this distinction has been held by (3708) 1974 FV1.

References

^ "JPL Close-Approach Data: 3360 Syrinx (1981 VA)" (2009-01-22 last obs). Retrieved 14 April 2016.
^ ^a ^b "NEODys (3360) Syrinx Ephemerides for 20 September 2012". Department of Mathematics, University of Pisa, Italy. Retrieved 2012-03-25.

Sources

NeoDys
3360 Syrinx at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters
JPL Horizons; telnet version is more comprehensive

This near-Earth asteroid-related article is a stub. You can help Wikipedia by expanding it.

^ Cite error: The named reference jpl-close was invoked but never defined (see the help page).

[jpl-close-1] "JPL Close-Approach Data: 3360 Syrinx (1981 VA)" (2009-01-22 last obs). Retrieved 14 April 2016.

[NEODys2012-2] "NEODys (3360) Syrinx Ephemerides for 20 September 2012". Department of Mathematics, University of Pisa, Italy. Retrieved 2012-03-25.

[jpl-close-3] Cite error: The named reference jpl-close was invoked but never defined (see the help page).

[1]

[2]

See also

References