1998 XY9

1998XY9, 70002, J98X09Y

All data for this body: [vot]

MPC data
Name (number) 1998 XY9 (70002)
a 3.13106
e 0.18778
i / sin(i) 2.3792 / 0.04151
q 2.54312
Q 3.71900
ω 312.6305
Node 80.8589
m 293.0450
n 0.1779
Epoch 2460800.5
nobs 1310
nopp 21
Years observed 1992-2025
rms 0.76
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.122
ep 0.167
sin(ip) 0.022
G 0.150
H 14.890
Mass
D 6.20 0.215
pV 0.055 0.0133
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
24 Themis 0 Themis Novakovic 2019EPSC...13.1671N HCM
24 Themis 602 Themis -0.0600 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1219 0.1671 0.0217 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.20 0.215 0.215 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.055 0.0133 0.0133 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
14.89 MPC-2023-12-04 MPC-2023-12-04 Phot