Estela

1995 UN61, 1995UN61, 1998 KO66, 1998KO66, 35646, J95U61N, J98K66O

All data for this body: [vot]

MPC data
Name (number) Estela (35646)
a 3.08385
e 0.10745
i / sin(i) 4.5970 / 0.08015
q 2.75247
Q 3.41522
ω 290.9480
Node 243.6114
m 34.9596
n 0.1820
Epoch 2460800.5
nobs 1952
nopp 24
Years observed 1990-2025
rms 0.76
Best values
[raw, vot]

Value Standard error
Parent Hygiea (10)
 
ap 3.083
ep 0.143
sin(ip) 0.101
G 0.150
H 14.400
Mass
D 7.25 0.260
pV 0.077 0.0164
Value
Rotational Period 9.952
Period quality 2
Spectral Class B
Spectral Class Score 2.918
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
10 Hygiea 0 Hygiea Novakovic 2019EPSC...13.1671N HCM
10 Hygiea 601 Hygiea Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0827 0.1433 0.1008 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.25 0.260 0.260 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.077 0.0164 0.0164 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
14.40 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
9.95211 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
B 0.156 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
B B 0.3304 0.2500 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C B 0.0815 0.2500 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT