Epstein

02928, 1968 UD, 1968UD, 1976 GN8, 1976GN8, 1976 HU, 1976HU, 1981 EX2, 1981EX2, J68U00D, J76G08N, J76H00U, J81E02X

All data for this body: [vot]

MPC data
Name (number) Epstein (2928)
a 3.00649
e 0.06581
i / sin(i) 9.5428 / 0.16578
q 2.80862
Q 3.20435
ω 157.1926
Node 310.3092
m 229.2070
n 0.1891
Epoch 2460800.5
nobs 7595
nopp 32
Years observed 1968-2025
rms 0.52
Best values
[raw, vot]

Value Standard error
Parent Eos (221)
 
ap 3.007
ep 0.081
sin(ip) 0.182
G 0.150
H 11.800
Mass
D 17.02 0.950
pV 0.142 0.0393
Value
Rotational Period 8.500
Period quality 2
Spectral Class X
Spectral Class Score 6.617
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
221 Eos 0 Eos Novakovic 2019EPSC...13.1671N HCM
221 Eos 606 Eos -0.6100 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0074 0.0813 0.1818 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
15.27 1.970 1.970 Masiero 2012ApJ...759L...8M NEATM
17.08 3.420 3.420 Ali-Lagoa 2018A&A...612A..85A NEATM
17.49 1.200 1.200 Usui 2011PASJ...63.1117U NEATM
18.77 3.750 3.750 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.129 0.0520 0.0520 Ali-Lagoa 2018A&A...612A..85A NEATM
0.156 0.0620 0.0620 Ali-Lagoa 2018A&A...612A..85A NEATM
0.204 0.2450 0.2450 Masiero 2012ApJ...759L...8M 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
11.80 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
8.509 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
S X 0.3850 0.2910 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S X 0.5563 0.2910 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X 0.393 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
X X 0.7098 0.2910 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT