Excalibur

09499, 1269 T-2, 1269T-2, 1953 UJ1, 1953UJ1, 1981 EP24, 1981EP24, J53U01J, J81E24P, T2S1269

All data for this body: [vot]

MPC data
Name (number) Excalibur (9499)
a 2.94426
e 0.00782
i / sin(i) 0.9530 / 0.01663
q 2.92123
Q 2.96728
ω 156.1408
Node 294.6408
m 357.9461
n 0.1951
Epoch 2460800.5
nobs 3137
nopp 28
Years observed 1971-2025
rms 0.74
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.941
ep 0.036
sin(ip) 0.037
G 0.150
H 13.870
Mass
D 5.10 0.350
pV 0.225 0.0782
Value
Rotational Period
Period quality None
Spectral Class X
Spectral Class Score 3.220
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
158 Koronis 0 Koronis Novakovic 2019EPSC...13.1671N HCM
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.9406 0.0364 0.0366 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.10 0.350 0.350 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.225 0.0782 0.0782 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
13.87 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
S S DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT
X DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
X 0.61 Bus VIS Carvano 2010A&A...510A..43C PHOT