Asteroid Radar Database
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88254 (2001 FM129)
Classification: APO [NEO, PHA]
H:17.77 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
2019 Mar Arecibo Arecibo 2380 [A]

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 2025-05-05 00:00 TT from E2024-J40 (heliocentric ecliptic J2000)
Element Value Units
e 0.6295587
a 1.1823675 AU
i 1.52289 deg
om 272.10906 deg
w 140.23598 deg
ma 319.88191 deg
n 0.76661151 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
2017-07-10 10:15:00 0.46655 465.6 0.6
2017-09-14 17:44:00 0.45134 450.4 0.7
2019-03-13 09:26:00 0.08713 87.0 207.2
2021-06-30 07:12:00 0.37044 369.7 1.3
2026-07-11 00:54:00 0.46369 462.8 0.6
2026-09-14 15:41:00 0.44953 448.6 0.7
2028-03-12 13:44:00 0.08441 84.2 231.2
2030-06-30 15:01:00 0.37042 369.7 1.3
2035-07-10 23:12:00 0.46767 466.7 0.6

Link to complete Close-Approach Data on SBDB at JPL