Helensteel

09038, 1990 VE1, 1990VE1, J90V01E

All data for this body: [vot]

MPC data
Name (number) Helensteel (9038)
a 2.62013
e 0.16733
i / sin(i) 14.3592 / 0.24800
q 2.18171
Q 3.05855
ω 221.3969
Node 138.1065
m 301.2292
n 0.2324
Epoch 2460200.5
nobs 4827
nopp 26
Years observed 1950-2023
rms 0.44
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.620
ep 0.130
sin(ip) 0.233
Value Standard error
G 0.150
H 13.440
Mass
D 5.89 0.171
pV 0.320 0.0489
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
15 Eunomia 502 Eunomia -0.3200 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6199 0.1299 0.2334 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.89 0.190 0.190 Masiero 2012ApJ...759L...8M NEATM
5.91 0.390 0.390 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.319 0.0602 0.0602 Masiero 2011ApJ...741...68M NEATM
0.322 0.0840 0.0840 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
13.44 MPC-2023-12-04 MPC-2023-12-04 Phot