Yvonnealex

1982 XU1, 1982XU1, 1998 HM94, 1998HM94, 28049, J82X01U, J98H94M

All data for this body: [vot]

MPC data
Name (number) Yvonnealex (28049)
a 2.74127
e 0.15297
i / sin(i) 8.2519 / 0.14353
q 2.32195
Q 3.16059
ω 216.7993
Node 224.8651
m 107.2484
n 0.2172
Epoch 2460800.5
nobs 2380
nopp 21
Years observed 1982-2025
rms 0.71
Best values
[raw, vot]

Value Standard error
Parent Gefion (1272)
 
ap 2.741
ep 0.149
sin(ip) 0.155
G 0.150
H 14.360
Mass
D 3.44 0.171
pV 0.312 0.0313
Value
Rotational Period 8.328
Period quality 2
Spectral Class S
Spectral Class Score 20.364
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
1272 Gefion 0 Gefion Novakovic 2019EPSC...13.1671N HCM
1272 Gefion 516 Gefion -0.9000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7410 0.1493 0.1555 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.44 0.171 0.171 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.312 0.0313 0.0313 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
14.36 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
8.3283 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.67 Bus VIS Carvano 2010A&A...510A..43C PHOT
S 0.912 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.9299 0.9600 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9954 0.9600 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT