2001 EF20

2001EF20, 1992 ER37, 1992ER37, 2006 HE30, 2006HE30, G2869, J92E37R, K01E20F, K06H30E

All data for this body: [vot]

MPC data
Name (number) 2001 EF20 (162869)
a 2.73239
e 0.05177
i / sin(i) 5.1475 / 0.08972
q 2.59094
Q 2.87384
ω 34.4433
Node 174.3499
m 84.5938
n 0.2182
Epoch 2460800.5
nobs 603
nopp 17
Years observed 1992-2025
rms 0.86
Best values
[raw, vot]

Value Standard error
Parent Nemesis (128)
 
ap 2.732
ep 0.088
sin(ip) 0.088
G 0.150
H 15.940
Mass
D 2.88 0.331
pV 0.102 0.0264
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 2.860
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
128 Nemesis 504 Nemesis -0.5500 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7325 0.0884 0.0878 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.88 0.331 0.331 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.102 0.0264 0.0264 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
15.94 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B B 0.0401 0.0400 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.43 Bus VIS Carvano 2010A&A...510A..43C PHOT