Minor Planet Radar Database
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437844 (1999 MN)
Classification: ATE [NEO, PHA]
H:21.4 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 2019-04-27 00:00 TT from MPO339588 (heliocentric ecliptic J2000)
Element Value Units
e 0.665431
a 0.6738986 AU
i 2.02222 deg
om 80.89309 deg
w 9.72867 deg
ma 152.07429 deg
n 1.78160839 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
2010-06-04 11:31:00 0.03342 33.4 237.4
2011-06-16 11:05:00 0.48842 487.5 0.0
2014-07-09 16:43:00 0.21267 212.2 0.4
2015-06-13 23:15:00 0.09300 92.8 7.0
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 4.7
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 15:32:00 0.07140 71.3 17.4
2026-06-03 06:26:00 0.16156 161.2 1.0

Link to complete Close-Approach Data on SBDB at JPL