Matthewizawa

08998, 1981 EG23, 1981EG23, J81E23G

All data for this body: [vot]

MPC data
Name (number) Matthewizawa (8998)
a 3.19655
e 0.18466
i / sin(i) 0.9062 / 0.01581
q 2.60626
Q 3.78683
ω 99.8476
Node 3.0192
m 304.0975
n 0.1725
Epoch 2460800.5
nobs 2525
nopp 26
Years observed 1981-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.226
ep 0.156
sin(ip) 0.028
G 0.150
H 13.800
Mass
D 8.97 0.136
pV 0.094 0.0123
Value
Rotational Period
Period quality None
Spectral Class B
Spectral Class Score 4.680
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 0 Themis Novakovic 2019EPSC...13.1671N HCM
24 Themis 602 Themis 0.7400 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.2258 0.1564 0.0276 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
8.36 0.262 0.262 Masiero 2011ApJ...741...68M NEATM
9.20 0.159 0.159 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.083 0.0198 0.0198 Masiero 2011ApJ...741...68M NEATM
0.101 0.0158 0.0158 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
13.80 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 0.7800 0.5390 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C B 0.5313 0.5390 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
Kl Kl None None Movis NIR Popescu 2018A&A...617A..12P PHOT