2005 ER257

2005ER257, 2008 UN298, 2008UN298, K05EP7R, K08UT8N, N3020

All data for this body: [vot]

MPC data
Name (number) 2005 ER257 (233020)
a 3.10202
e 0.11145
i / sin(i) 4.4300 / 0.07724
q 2.75628
Q 3.44776
ω 190.9726
Node 342.7141
m 148.0707
n 0.1804
Epoch 2460200.5
nobs 413
nopp 15
Years observed 2005-2023
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent Hygiea (10)
 
ap 3.106
ep 0.143
sin(ip) 0.087
Value Standard error
G 0.150
H 15.950
Mass
D 2.69 0.635
pV 0.128 0.0842
Rotational Period
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
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
3.1063 0.1434 0.0869 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.69 0.635 0.635 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.128 0.0842 0.0842 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
15.95 MPC-2023-12-04 MPC-2023-12-04 Phot