Asteroid Radar Database
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612094 (1999 NW2)
Classification: APO [NEO]
H:23.27 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
                 [edit]
name symbol value units uncertainty reference notes
morphology
number of components N
morphological type
spectrum-based or image-based dimensions
maximum range extent Rmax km
minimum range extent Rmin km
maximum Doppler bandwidth Bmax Hz
minimum Doppler bandwidth Bmin Hz
effective diameter Deff km
quality code for size Q
shape-based dimensions
equivalent diameter Dequ km
extent along principal axis x Ex km
extent along principal axis y Ey km
extent along principal axis z Ez km
DEEVE extent along x Dx km
DEEVE extent along y Dy km
DEEVE extent along z Dz km
surface area A km2
volume V km3
spin
spin period Pspin h
spin rate ω deg/day
YORP acceleration ω̇ deg/day2
spin axis ecliptic longitude λ deg
spin axis ecliptic latitude β deg
reflectivity
radar cross-section OC σOC km2
radar cross-section SC σSC km2
radar cross-section σT km2
projected area Aproj km2
radar albedo OC σ̂OC
radar albedo SC σ̂SC
radar albedo σ̂T
circular polarization ratio μC

Orbital Elements at Epoch 2024-03-31 00:00 TT from MPO703038 (heliocentric ecliptic J2000)
Element Value Units
e 0.1086802
a 1.1162263 AU
i 8.67906 deg
om 289.50823 deg
w 52.9917 deg
ma 298.5675 deg
n 0.83574865 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
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
2032-08-28 23:23:00 0.18338 183.0 0.2
2032-10-22 22:28:00 0.18439 184.0 0.2

Link to complete Close-Approach Data on SBDB at JPL