Coleman

11821, 1981 EG44, 1981EG44, J81E44G

All data for this body: [vot]

MPC data
Name (number) Coleman (11821)
a 3.07131
e 0.04541
i / sin(i) 9.6163 / 0.16705
q 2.93186
Q 3.21077
ω 104.8303
Node 11.9504
m 132.2911
n 0.1831
Epoch 2460800.5
nobs 2433
nopp 24
Years observed 1978-2025
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent Eos (221)
 
ap 3.070
ep 0.067
sin(ip) 0.167
G 0.150
H 13.640
Mass
D 7.44 0.352
pV 0.183 0.0367
Value
Rotational Period
Period quality None
Spectral Class X
Spectral Class Score 3.873
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
221 Eos 0 Eos Novakovic 2019EPSC...13.1671N HCM
221 Eos 606 Eos 0.6500 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0697 0.0672 0.1670 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.44 0.352 0.352 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.183 0.0367 0.0367 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
13.64 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
C 0.39 Bus VIS Carvano 2010A&A...510A..43C PHOT
X DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
X X 0.3121 0.3121 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT