Asteroid Radar Database
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22753 (1998 WT)
Classification: APO [NEO, PHA]
H:17.54 mag, G:0.15

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History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
2002 Oct Arecibo Arecibo 2380 [A]
2005 Mar Goldstone Goldstone 8560 [G]

Radar-Based Physical Properties
name symbol value units uncertainty reference notes
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 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
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 0.25 0.03 2008Icar..198..294B Date: 2005T

Orbital Elements at Epoch 2022-01-21 00:00 TT from MPO660785 (heliocentric ecliptic J2000)
Element Value Units
e 0.5698237
a 1.2189816 AU
i 3.20422 deg
om 307.40688 deg
w 324.76686 deg
ma 152.97088 deg
n 0.73233259 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
2013-02-20 04:38:00 0.49949 498.5 0.3
2013-05-10 21:22:00 0.43101 430.2 0.6
2017-06-04 18:44:00 0.48063 479.7 0.4
2021-06-27 16:16:00 0.49219 491.2 0.4
2025-07-20 17:59:00 0.47015 469.2 0.4
2029-08-16 07:07:00 0.40448 403.7 0.7
2029-10-20 08:25:00 0.45340 452.5 0.5
2032-02-13 19:23:00 0.46107 460.2 0.5

Link to complete Close-Approach Data on SBDB at JPL