1999 US23

1999US23, 1977 XW, 1977XW, 70694, J77X00W, J99U23S

All data for this body: [vot]

MPC data
Name (number) 1999 US23 (70694)
a 2.40843
e 0.08052
i / sin(i) 5.5539 / 0.09678
q 2.21450
Q 2.60237
ω 221.1908
Node 234.2897
m 226.8558
n 0.2637
Epoch 2460800.5
nobs 2250
nopp 21
Years observed 1977-2025
rms 0.74
Best values
[raw, vot]

Value Standard error
Parent Vesta (4)
 
ap 2.408
ep 0.100
sin(ip) 0.110
G 0.150
H 14.970
Mass
D 2.58 0.381
pV 0.351 0.1551
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 5.280
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
4 Vesta 0 Vesta Novakovic 2019EPSC...13.1671N HCM
4 Vesta 401 Vesta Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4081 0.1002 0.1103 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.58 0.381 0.381 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.351 0.1551 0.1551 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
14.97 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 0.880 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
U Popescu NIR Mansour 2020MNRAS.491.5966M SPEC+PHOT
V V None None Movis NIR Popescu 2018A&A...617A..12P PHOT