1981 EE22

1981EE22, 58123, J81E22E

All data for this body: [vot]

MPC data
Name (number) 1981 EE22 (58123)
a 3.08870
e 0.10052
i / sin(i) 4.9548 / 0.08637
q 2.77822
Q 3.39918
ω 178.3468
Node 12.6335
m 31.5086
n 0.1816
Epoch 2460800.5
nobs 1402
nopp 21
Years observed 1978-2025
rms 0.80
Best values
[raw, vot]

Value Standard error
Parent Hygiea (10)
 
ap 3.089
ep 0.137
sin(ip) 0.086
G 0.150
H 14.660
Mass
D 6.61 0.182
pV 0.049 0.0094
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 7.264
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
10 Hygiea 0 Hygiea Novakovic 2019EPSC...13.1671N HCM
10 Hygiea 601 Hygiea Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0891 0.1372 0.0860 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.32 0.316 0.316 Masiero 2011ApJ...741...68M NEATM
6.60 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
6.90 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.049 0.0094 0.0094 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
14.66 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 C 0.3353 0.2000 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B C 0.3846 0.2000 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C 0.47 Bus VIS Carvano 2010A&A...510A..43C PHOT
C C 0.0221 0.2000 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.2416 0.2000 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.3609 0.2000 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.4294 0.2000 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S C 0.0232 0.2000 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V C 0.1068 0.2000 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V C 0.1396 0.2000 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT