1998 YP9

1998YP9, 2000 DM13, 2000DM13, 70018, J98Y09P, K00D13M

All data for this body: [vot]

MPC data
Name (number) 1998 YP9 (70018)
a 3.15880
e 0.12134
i / sin(i) 4.7622 / 0.08302
q 2.77551
Q 3.54209
ω 243.3563
Node 170.6536
m 263.1835
n 0.1756
Epoch 2460800.5
nobs 1552
nopp 22
Years observed 1998-2025
rms 0.78
Best values
[raw, vot]

Value Standard error
Parent Hygiea (10)
 
ap 3.152
ep 0.110
sin(ip) 0.080
G 0.150
H 14.420
Mass
D 7.55 0.101
pV 0.078 0.0079
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
10 Hygiea 0 Hygiea Novakovic 2019EPSC...13.1671N HCM
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
3.1523 0.1100 0.0799 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.55 0.101 0.101 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.078 0.0079 0.0079 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
14.42 MPC-2023-12-04 MPC-2023-12-04 Phot