1981 UW23

1981UW23, 15688, 1981 WS3, 1981WS3, 2000 ES103, 2000ES103, J81U23W, J81W03S, K00EA3S

All data for this body: [vot]

MPC data
Name (number) 1981 UW23 (15688)
a 2.59097
e 0.20329
i / sin(i) 13.9525 / 0.24112
q 2.06426
Q 3.11768
ω 283.2349
Node 59.6104
m 196.1912
n 0.2363
Epoch 2460800.5
nobs 5075
nopp 23
Years observed 1981-2025
rms 0.61
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.592
ep 0.149
sin(ip) 0.233
G 0.150
H 12.940
Mass
D 7.79 0.062
pV 0.288 0.0264
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 6.316
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
15 Eunomia 0 Eunomia Novakovic 2019EPSC...13.1671N HCM
15 Eunomia 502 Eunomia -0.7800 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5919 0.1495 0.2329 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.37 0.360 0.360 Masiero 2012ApJ...759L...8M NEATM
7.46 0.080 0.080 Masiero 2014ApJ...791..121M NEATM
8.42 0.100 0.100 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.229 0.0414 0.0414 Masiero 2011ApJ...741...68M NEATM
0.290 0.0500 0.0500 Masiero 2014ApJ...791..121M NEATM
0.363 0.0470 0.0470 Masiero 2012ApJ...759L...8M 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
12.94 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 0.886 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S None None Movis NIR Popescu 2018A&A...617A..12P PHOT