1999 XE20

1999XE20, 1989 TD3, 1989TD3, 41230, J89T03D, J99X20E

All data for this body: [vot]

MPC data
Name (number) 1999 XE20 (41230)
a 2.89966
e 0.09073
i / sin(i) 3.0151 / 0.05260
q 2.63658
Q 3.16274
ω 280.7852
Node 101.7331
m 71.8781
n 0.1996
Epoch 2460800.5
nobs 1782
nopp 23
Years observed 1989-2025
rms 0.81
Best values
[raw, vot]

Value Standard error
Parent Koronis (158)
 
ap 2.898
ep 0.054
sin(ip) 0.033
G 0.150
H 14.770
Mass
D 3.40 0.634
pV 0.319 0.1446
Value
Rotational Period
Period quality None
Spectral Class D
Spectral Class Score 2.422
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
158 Koronis 0 Koronis Novakovic 2019EPSC...13.1671N HCM
158 Koronis 605 Koronis 0.1600 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8981 0.0537 0.0328 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.40 0.634 0.634 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.319 0.1446 0.1446 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
14.77 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
D D 0.4036 0.4036 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT