1981 UJ28

1981UJ28, 18320, 1989 YQ2, 1989YQ2, 1998 KX16, 1998KX16, 1999 RD53, 1999RD53, J81U28J, J89Y02Q, J98K16X, J99R53D

All data for this body: [vot]

MPC data
Name (number) 1981 UJ28 (18320)
a 2.40056
e 0.15728
i / sin(i) 1.6614 / 0.02899
q 2.02300
Q 2.77812
ω 192.1957
Node 293.6825
m 176.1283
n 0.2650
Epoch 2460800.5
nobs 2747
nopp 23
Years observed 1981-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent Nysa (44)
 
ap 2.400
ep 0.189
sin(ip) 0.044
G 0.150
H 14.820
Mass
D
pV
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
135 Hertha 0 Hertha Novakovic 2019EPSC...13.1671N HCM
44 Nysa 405 Nysa-Polana -0.3000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3996 0.1888 0.0436 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
14.82 MPC-2023-12-04 MPC-2023-12-04 Phot