21861 Maryhedberg
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Discovery and designation
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Discovered by | Lincoln Laboratory Near-Earth Asteroid Research Team |
Discovery site | Socorro |
Discovery date | October 12, 1999 |
Designations
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MPC designation | 21861 |
Alternative names[1] | 1999 TU189 |
Epoch May 14, 2008 | |
Ap | 3.1003164 |
Peri | 2.8378114 |
Eccentricity | 0.0442067 |
Orbital period | 1868.6490264 |
Mean anomaly | 106.71772 |
Inclination | 9.45930 |
Longitude of ascending node | 285.17544 |
Argument of peri | 248.00285 |
Absolute magnitude | 14.6 |
21861 Maryhedberg (1999 TU189) is a Main-belt Asteroid discovered on October 12, 1999 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.