Minor Planet Radar Database
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(1999 NW2)
Classification: APO [NEO]
H:23.2 mag, G:0.15

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History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
1999 Jul Goldstone Goldstone 8560 [G]

Radar-Based Physical Properties
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Orbital Elements at Epoch 2019-04-27 00:00 TT from E2019-Q95 (heliocentric ecliptic J2000)
Element Value Units
e 0.1086428
a 1.115986 AU
i 8.67967 deg
om 289.53578 deg
w 52.97316 deg
ma 234.13263 deg
n 0.8360186 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
2012-07-08 23:39:00 0.08534 85.2 2.4
2012-12-19 11:35:00 0.16951 169.2 0.2
2019-03-31 06:33:00 0.27906 278.5 0.0
2019-10-31 18:11:00 0.33119 330.5 0.0
2025-06-29 10:22:00 0.26853 268.0 0.0
2026-01-16 12:53:00 0.22126 220.8 0.1

Link to complete Close-Approach Data on SBDB at JPL