Asteroid Radar Database
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437844 (1999 MN)
Classification: ATE [NEO, PHA]
H:21.15 mag, G:0.15

  MPC page for this object   |  JPL SBDB page for this object   |  NEODyS-2 page for this object   |  ESA SSA page for this object  

History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
2004 Jul Goldstone Goldstone 8560 [G]
2005 May Arecibo Arecibo 2380 [A]

Radar-Based Physical Properties
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Orbital Elements at Epoch 2021-07-05 00:00 TT from MPO597951 (heliocentric ecliptic J2000)
Element Value Units
e 0.6653759
a 0.6738851 AU
i 2.02106 deg
om 80.88104 deg
w 9.73595 deg
ma 137.50764 deg
n 1.78166204 deg/d

Link to complete orbital information at Minor Planet Center

Earth Close-Approach Data (+/- 10 years)
date nominal distance RTT SNR/run at Arecibo
2014-07-09 16:43:00 0.21267 212.2 0.5
2015-06-13 23:15:00 0.09300 92.8 8.3
2016-06-10 13:13:00 0.37475 374.0 0.1
2019-07-05 19:40:00 0.32455 323.9 0.1
2020-06-25 01:34:00 0.10432 104.1 5.5
2021-06-06 08:04:00 0.26410 263.6 0.2
2024-06-30 12:08:00 0.43046 429.6 0.0
2025-07-05 15:33:00 0.07140 71.3 20.6
2026-06-03 06:26:00 0.16156 161.2 1.2
2030-07-11 21:06:00 0.01684 16.8 2815.4
2031-06-02 00:52:00 0.05975 59.6 38.2

Link to complete Close-Approach Data on SBDB at JPL