1999 XC20

1999XC20, 97204, J99X20C

All data for this body: [vot]

MPC data
Name (number) 1999 XC20 (97204)
a 2.73704
e 0.09767
i / sin(i) 10.6356 / 0.18456
q 2.46970
Q 3.00438
ω 28.4740
Node 57.7810
m 186.9626
n 0.2177
Epoch 2460800.5
nobs 1053
nopp 19
Years observed 1999-2025
rms 0.80
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.736
ep 0.114
sin(ip) 0.170
G 0.150
H 15.050
Mass
D 2.78 0.540
pV 0.362 0.0906
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 7.414
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7359 0.1140 0.1701 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.78 0.540 0.540 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.362 0.0906 0.0906 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
15.05 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 0.4359 0.6400 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.7998 0.6400 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT