1998HJ128

18718, 1989CB7, 1999NL58, J89C07B, J98HC8J, J99N58L

All data for this body: [vot]

MPC data
Name (number) 1998HJ128 (18718)
Packed designation 18718
a 2.60338
e 0.09268
i / sin(i) 14.6159 / 0.25234
q 2.36210
Q 2.84466
ω 247.4662
Node 159.7443
m 9.0689
n 0.2346
Epoch 2459600.5
nobs 2448
nopp 20
Years observed 1989-2022
rms 0.57
Best values
[raw, vot]

Value Standard error
Parent Maria (170)
 
ap 2.604
ep 0.077
sin(ip) 0.248
Value Standard error
G 0.150
H 13.410
Mass
D 5.55 0.139
pV 0.301 0.0400
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
170 Maria 506 Maria 0.5900 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6042 0.0773 0.2484 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.55 0.139 0.139 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.301 0.0400 0.0400 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
13.41 MPC-2022-01-18 MPC-2022-01-18 Phot