(7474) 1992 TC

(7474) 1992 TC
Discovery
Discovered by	McNaught, R. H.
Discovery site	Siding Spring
Discovery date	1 October 1992
Designations
MPC designation	7474
Alternative designations	1992 TC
Orbital characteristics
	Epoch 13 January 2016 (JD 2457400.5)
	Uncertainty parameter 0
Observation arc	9008 days (24.66 yr)
Aphelion	2.023428544361125 AU (302.70060175002 Gm)
Perihelion	1.107744504781589 AU (165.71621919495 Gm)
Semi-major axis	1.565586524571357 AU (234.20841047248 Gm)
Eccentricity	0.2924412113952760
Orbital period (sidereal)	1.96 yr (715.51 d)
Mean anomaly	319.6698827668740°
Mean motion	0° 30m 11.302s / day
Inclination	7.087399865368700°
Longitude of ascending node	88.65316330200990°
Argument of perihelion	275.5510819132080°
Earth MOID	0.166416 AU (24.8955 Gm)
Physical characteristics
Mean diameter	670–1500 meters
Synodic rotation period	5.540 h (0.2308 d)
Spectral type	X
Absolute magnitude (H)	18.0

(7474) 1992 TC is a large sized M-type asteroid discovered by Robert H. McNaught in 1992. It is notably one of a few similar M-type asteroids, including the named asteroids 4660 Nereus and 65803 Didymos, which can be reached easily by spacecraft from Earth. The delta-V required to reach 7474 (1992 TC) would be about 5.6 kilometres per second (3.5 mi/s),^[3] which is less than is needed to reach the Moon. M-type asteroids are thought to be composed primarily of nickel and iron, which if proven to be true means that 7474 (1992 TC) may one day become an important source of raw materials in space.

With an absolute magnitude of 18.0,^[1] the asteroid is about 670–1500 meters in diameter.^[2] On 2031-Aug-11 the asteroid will pass 0.085 AU (12,700,000 km; 7,900,000 mi) from Mars.^[1]

References

1 2 3 4 "JPL Small-Body Database Browser: 7474 (1992 TC)". Jet Propulsion Laboratory. Retrieved 4 April 2016.
1 2 "Absolute Magnitude (H)". NASA/JPL. Archived from the original on 2 March 2001. Retrieved 25 June 2014.
↑ "Delta-v for spacecraft rendezvous with all known near-Earth asteroids". 2010. Archived from the original on 3 June 2001. Retrieved 7 October 2010.

External links

(7474) 1992 TC at NeoDyS-2, Near Earth Objects—Dynamic Site
- Ephemerides · Observation prediction · Orbital info · MOID · Proper elements · Observational info · Close approaches · Physical info · Orbit animation
(7474) 1992 TC at ESA–space situational awareness
- Ephemerides · Observations · Orbit · Physical properties · Summary
(7474) 1992 TC at the JPL Small-Body Database

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[jpldata-1] 1 2 3 4 "JPL Small-Body Database Browser: 7474 (1992 TC)". Jet Propulsion Laboratory. Retrieved 4 April 2016.

[h-2] 1 2 "Absolute Magnitude (H)". NASA/JPL. Archived from the original on 2 March 2001. Retrieved 25 June 2014.

[3] "Delta-v for spacecraft rendezvous with all known near-Earth asteroids". 2010. Archived from the original on 3 June 2001. Retrieved 7 October 2010.

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