1999 XJ208

1999XJ208, 41319, J99XK8J

All data for this body: [vot]

MPC data
Name (number) 1999 XJ208 (41319)
a 2.58853
e 0.23984
i / sin(i) 10.9642 / 0.19020
q 1.96769
Q 3.20938
ω 22.5310
Node 283.7008
m 145.5479
n 0.2367
Epoch 2460800.5
nobs 2496
nopp 22
Years observed 1990-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.587
ep 0.222
sin(ip) 0.199
G 0.150
H 13.880
Mass
D 4.68 0.141
pV 0.291 0.0251
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 3.144
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5871 0.2219 0.1986 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.02 0.750 0.750 Nugent 2016AJ....152...63N NEATM
4.34 0.376 0.376 Masiero 2011ApJ...741...68M NEATM
4.76 0.155 0.155 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.283 0.0276 0.0276 Masiero 2011ApJ...741...68M NEATM
0.290 0.1200 0.1200 Nugent 2016AJ....152...63N NEATM
0.340 0.0698 0.0698 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
13.88 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
L&D L DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT
S 0.524 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT