Karenyoung

12516, 1989 SP8, 1989SP8, 1998 HB45, 1998HB45, J89S08P, J98H45B

All data for this body: [vot]

MPC data
Name (number) Karenyoung (12516)
a 2.19340
e 0.07892
i / sin(i) 4.8872 / 0.08520
q 2.02030
Q 2.36651
ω 253.6967
Node 13.3653
m 62.8985
n 0.3034
Epoch 2460800.5
nobs 4564
nopp 23
Years observed 1989-2025
rms 0.55
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.194
ep 0.070
sin(ip) 0.073
G 0.150
H 15.100
Mass
D 2.89 0.234
pV 0.306 0.0438
Value
Rotational Period 64.289
Period quality 2
Spectral Class S
Spectral Class Score 19.200
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.1937 0.0700 0.0729 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.89 0.234 0.234 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.306 0.0438 0.0438 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
15.10 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
64.001 2 Sidereal Durech 2023A&A...675A..24D Model
64.2899 2 Synodic Pal 2020ApJS..247...26P Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
LS 0.59 Bus VIS Carvano 2010A&A...510A..43C PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.978 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.3370 0.5430 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.5523 0.5430 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9994 0.5430 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT