Yeungkwongyu

1994 UB8, 1994UB8, 1999 TA21, 1999TA21, 40776, J94U08B, J99T21A

All data for this body: [vot]

MPC data
Name (number) Yeungkwongyu (40776)
a 2.94079
e 0.07818
i / sin(i) 3.2793 / 0.05720
q 2.71088
Q 3.17071
ω 95.2948
Node 344.6314
m 336.3388
n 0.1954
Epoch 2460800.5
nobs 2172
nopp 23
Years observed 1991-2024
rms 0.76
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.942
ep 0.074
sin(ip) 0.068
G 0.150
H 14.300
Mass
D
pV
Value
Rotational Period 3.090
Period quality 2
Spectral Class S
Spectral Class Score 3.210
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.9419 0.0744 0.0681 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
14.30 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.09758 2 Sidereal Durech 2023A&A...675A..24D Model
3.098 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
K DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
LS 0.30 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.5350 0.5350 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT