1999NJ54

1996CN, 1998HV150, 20485, J96C00N, J98HF0V, J99N54J

All data for this body: [vot]

MPC data
Name (number) 1999NJ54 (20485)
Packed designation 20485
a 2.66382
e 0.17282
i / sin(i) 13.2598 / 0.22937
q 2.20346
Q 3.12418
ω 196.1095
Node 205.4871
m 356.4062
n 0.2267
Epoch 2459600.5
nobs 1656
nopp 19
Years observed 1996-2021
rms 0.63
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.664
ep 0.160
sin(ip) 0.230
Value Standard error
G 0.150
H 14.160
Mass
D 4.34 0.247
pV 0.259 0.0617
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
15 Eunomia 502 Eunomia 0.1700 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6637 0.1604 0.2304 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.34 0.247 0.247 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.259 0.0617 0.0617 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2022-01-18 MPC-2022-01-18 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.16 MPC-2022-01-18 MPC-2022-01-18 Phot