(237442) 1999 TA10

(237442) 1999 TA10
Discovery[1]
Discovered by LINEAR
Discovery site Lincoln Laboratory ETS
Discovery date 5 October 1999
Designations
MPC designation (237442) 1999 TA10
Amor asteroid (NEO)[2]
Orbital characteristics[2]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 5592 days (15.31 yr)
Aphelion 1.8695 AU (279.67 Gm) (Q)
Perihelion 1.1419 AU (170.83 Gm) (q)
1.5057 AU (225.25 Gm) (a)
Eccentricity 0.24161 (e)
1.85 yr (674.85 d)
342.45° (M)
0° 32m 0.42s / day (n)
Inclination 20.843° (i)
214.68° (Ω)
84.791° (ω)
Earth MOID 0.303797 AU (45.4474 Gm)
Physical characteristics
Dimensions 500-1500 meters[2][3]
14 h (0.58 d)
14 hr(?)[2]
16.77 (close approach) to 22.29
18.1[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 by LINEAR at Lincoln Laboratory ETS 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 2 "MPEC 1999-T43 : 1999 TA10". IAU Minor Planet Center. 1999-10-11. Retrieved 2011-01-12.
    2. 1 2 3 4 5 6 7 "JPL Small-Body Database Browser: 237442 (1999 TA10)" (last observation: 2010-11-08). Retrieved 7 April 2016.
    3. 1 2 "Conversion of Absolute Magnitude to Diameter". Minor Planet Center. Archived from the original on 27 October 2010. Retrieved 2011-01-12.
    4. 1 2 "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. 1 2 3 4 "JPL Close-Approach Data: 237442 (1999 TA10)" (2010-11-08 last obs). Retrieved 2011-01-12.
    This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.