Minor Planet Radar Database
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33342 (1998 WT24)
Classification: ATE [NEO, PHA]
H:17.9 mag, G:0.15

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History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
2001 Dec Goldstone Goldstone 8560 [G]
2001 Dec Arecibo Arecibo 2380 [A]
2001 Dec Goldstone Medicina 8560 [G-ME]
2001 Dec Evpatoria Medicina 5010 [EV-ME]
2015 Dec Goldstone Goldstone 8560 [G]
2015 Dec Arecibo Arecibo 2380 [A]
2015 Dec Canberra DSS-43 Parkes 2110 [C-P]

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 0.97 0.10 2008Icar..198..294B Date: 2001T

Orbital Elements at Epoch 2019-04-27 00:00 TT from MPO426121 (heliocentric ecliptic J2000)
Element Value Units
e 0.4176079
a 0.719056 AU
i 7.36417 deg
om 81.73638 deg
w 167.54473 deg
ma 32.95037 deg
n 1.61644161 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
2009-12-15 10:53:00 0.43074 429.9 0.1
2012-08-24 17:56:00 0.45470 453.8 0.1
2012-12-23 07:34:00 0.17786 177.5 2.1
2015-12-11 13:16:00 0.02799 27.9 1263.4
2018-11-11 10:16:00 0.13452 134.3 5.6
2019-02-28 15:13:00 0.41903 418.2 0.1
2021-11-17 00:01:00 0.38627 385.5 0.1
2023-12-18 16:14:00 0.35945 358.7 0.2
2026-09-09 20:04:00 0.41102 410.2 0.1
2026-12-24 07:40:00 0.10123 101.0 15.1

Link to complete Close-Approach Data on SBDB at JPL