1999 UA21

1999UA21, J99U21A, Q4328

All data for this body: [vot]

MPC data
Name (number) 1999 UA21 (264328)
a 3.08177
e 0.17233
i / sin(i) 2.5194 / 0.04396
q 2.55069
Q 3.61286
ω 246.9659
Node 95.1237
m 290.3225
n 0.1822
Epoch 2460800.5
nobs 189
nopp 15
Years observed 1999-2024
rms 0.86
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.082
ep 0.141
sin(ip) 0.024
G 0.150
H 16.770
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 0.226
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 0 Themis Novakovic 2019EPSC...13.1671N HCM
24 Themis 602 Themis -0.1000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0819 0.1413 0.0235 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
16.77 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
C C 0.0377 0.0330 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT