Ewen

1996 HU17, 1996HU17, 1998 XD55, 1998XD55, 2000 DG1, 2000DG1, 50412, J96H17U, J98X55D, K00D01G

All data for this body: [vot]

MPC data
Name (number) Ewen (50412)
a 2.68958
e 0.08386
i / sin(i) 3.0468 / 0.05315
q 2.46403
Q 2.91513
ω 311.6491
Node 94.5679
m 24.0709
n 0.2234
Epoch 2460800.5
nobs 2077
nopp 20
Years observed 1996-2025
rms 0.74
Best values
[raw, vot]

Value Standard error
Parent Henan (2085)
 
ap 2.689
ep 0.058
sin(ip) 0.034
G 0.150
H 14.700
Mass
D 5.48 0.759
pV 0.123 0.0259
Value
Rotational Period 60.140
Period quality 2
Spectral Class S
Spectral Class Score 9.392
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
2085 Henan 532 Henan -0.2000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6888 0.0581 0.0343 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.48 0.759 0.759 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.123 0.0259 0.0259 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
14.70 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
60.146 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
L 0.22 Bus VIS Carvano 2010A&A...510A..43C PHOT
L S 0.5340 0.4110 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S 0.904 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.6614 0.4110 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT