1981 ER41

1981ER41, 2003 DR13, 2003DR13, 99992, J81E41R, K03D13R

All data for this body: [vot]

MPC data
Name (number) 1981 ER41 (99992)
a 3.11572
e 0.20529
i / sin(i) 26.0869 / 0.43973
q 2.47609
Q 3.75536
ω 254.8088
Node 358.5500
m 303.4794
n 0.1792
Epoch 2460800.5
nobs 817
nopp 18
Years observed 1981-2025
rms 0.77
Best values
[raw, vot]

Value Standard error
Parent Euphrosyne (31)
 
ap 3.120
ep 0.170
sin(ip) 0.455
G 0.150
H 14.710
Mass
D 9.57 2.280
pV 0.020 0.0100
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
31 Euphrosyne 0 Euphrosyne Novakovic 2019EPSC...13.1671N HCM
31 Euphrosyne 901 Euphrosyne Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1202 0.1702 0.4545 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
9.57 2.280 2.280 Nugent 2016AJ....152...63N NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.020 0.0100 0.0100 Nugent 2016AJ....152...63N 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
14.71 MPC-2023-12-04 MPC-2023-12-04 Phot