1999 XN90

1999XN90, 49841, J99X90N

All data for this body: [vot]

MPC data
Name (number) 1999 XN90 (49841)
a 2.21307
e 0.12912
i / sin(i) 3.2236 / 0.05623
q 1.92731
Q 2.49884
ω 261.8567
Node 262.0855
m 201.9988
n 0.2994
Epoch 2460800.5
nobs 1546
nopp 20
Years observed 1998-2025
rms 0.77
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.213
ep 0.183
sin(ip) 0.072
G 0.150
H 15.740
Mass
D 2.07 0.111
pV 0.284 0.1026
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 5.844
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2130 0.1835 0.0721 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.07 0.111 0.111 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.284 0.1026 0.1026 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
15.74 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
A A 0.1247 0.1247 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S 0.974 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT