(237442) 1999 TA10

(237442) 1999 TA10
Discovery[1]
Discovered by Lincoln Laboratory ETS, New Mexico (704)
Discovery date 5 October 1999
Designations
MPC designation (237442) 1999 TA10
Amor asteroid (NEO)[2]
Orbital characteristics[2]
Epoch July 23, 2010 (2455400.5)
Aphelion 1.8694 AU (Q)
Perihelion 1.1420 AU (q)
1.5057 AU (a)
Eccentricity 0.24155
1.85 yr
674.85 days
355.60° (M)
Inclination 20.842°
214.71°
84.739°
Physical characteristics
Dimensions 500-1500 meters[2][3]
14 hr(?)[2]
Albedo unknown
16.77 (close approach) to 22.29
17.9[2]

    (237442) 1999 TA10, provisionally known as 1999 TA10, is a near-Earth object (NEO) from the Amor asteroid group.[2] It is suspected of being an inner fragment of the differentiated asteroid 4 Vesta.[4]

    Given an absolute magnitude (H) of 17.9,[2] and that the albedo is unknown, this NEO could vary from 500 to 1500 meters in diameter.[3]

    1999 TA10 was discovered on 5 October 1999 at apparent magnitude 17.7,[1] when it was only 0.39 AU from Earth.[5] In 2010, it came within 0.3 AU of Earth.[5] During the 2010 close approach, NASA Infrared Telescope Facility (NASA IRTF) studies suggested that 1999 TA10 originated from the interior of Vesta.[4] The next close approach will be in 2023.[5] In 2086, it will come within 0.017 AU (2,500,000 km; 1,600,000 mi) of Mars.[5]

    See also

    References

    1. ↑ 1.0 1.1 "MPEC 1999-T43 : 1999 TA10". IAU Minor Planet Center. 1999-10-11. Retrieved 2011-01-12.
    2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 "JPL Small-Body Database Browser: 237442 (1999 TA10)" (last observation: 2010-11-08). Retrieved 2011-01-12.
    3. ↑ 3.0 3.1 "Conversion of Absolute Magnitude to Diameter". Minor Planet Center. Archived from the original on 27 October 2010. Retrieved 2011-01-12.
    4. ↑ 4.0 4.1 "A look into Vesta’s interior". Max Planck Society. 2011-01-06. Archived from the original on 13 January 2011. Retrieved 2011-01-07.
    5. ↑ 5.0 5.1 5.2 5.3 "JPL Close-Approach Data: 237442 (1999 TA10)" (2010-11-08 last obs). Retrieved 2011-01-12.

    External links