2004 XX21

2004XX21, K04X21X, M3940

All data for this body: [vot]

MPC data
Name (number) 2004 XX21 (223940)
a 3.17212
e 0.17683
i / sin(i) 3.9918 / 0.06961
q 2.61119
Q 3.73306
ω 186.2106
Node 282.0834
m 194.5837
n 0.1745
Epoch 2460800.5
nobs 681
nopp 16
Years observed 2003-2025
rms 0.84
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.177
ep 0.180
sin(ip) 0.087
G 0.150
H 15.360
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 3.173
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1766 0.1798 0.0866 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
15.36 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
B C 0.0960 0.1460 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B C 0.1711 0.1460 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B C 0.2409 0.1460 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C 0.15 Bus VIS Carvano 2010A&A...510A..43C PHOT
C C 0.0723 0.1460 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.1162 0.1460 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.2904 0.1460 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT