Asteroid Radar Database
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138175 (2000 EE104)
Classification: APO [NEO, PHA]
H:20.49 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
2000 Apr Arecibo Arecibo 2380 [A]
2001 Apr Arecibo Arecibo 2380 [A]

Radar-Based Physical Properties
                 [edit]
name symbol value units uncertainty reference notes
morphology
number of components N 1 - single 2001DPS....33.6104H Appears bi-lobed at times, elongated at other times.
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 0.24 km 2001DPS....33.6104H
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 8 h 2
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 1.1 0.3 2008Icar..198..294B

Orbital Elements at Epoch 2025-05-05 00:00 TT from MPO888911 (heliocentric ecliptic J2000)
Element Value Units
e 0.2932385
a 1.0037663 AU
i 5.23511 deg
om 25.47742 deg
w 280.85552 deg
ma 248.70852 deg
n 0.98006565 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
2023-10-15 07:11:00 0.19043 190.0 1.7
2023-11-22 00:51:00 0.19063 190.2 1.7
2024-11-06 07:27:00 0.15653 156.2 3.3
2025-11-06 14:44:00 0.12222 122.0 7.8
2026-11-08 08:22:00 0.09140 91.2 21.5
2027-11-09 12:19:00 0.06947 69.3 55.7
2028-11-09 15:26:00 0.05239 52.3 147.8
2029-11-10 15:19:00 0.04162 41.5 326.1
2030-11-11 12:48:00 0.03752 37.4 465.3
2031-11-12 12:05:00 0.04060 40.5 354.9
2032-11-12 16:52:00 0.05357 53.5 136.8
2033-11-14 03:21:00 0.07629 76.1 40.3
2034-11-15 17:11:00 0.10560 105.4 13.0

Link to complete Close-Approach Data on SBDB at JPL