1998 UD8

1998UD8, 13360, 1981 FW, 1981FW, 1996 GE18, 1996GE18, J81F00W, J96G18E, J98U08D

All data for this body: [vot]

MPC data
Name (number) 1998 UD8 (13360)
a 2.89037
e 0.04287
i / sin(i) 3.1007 / 0.05409
q 2.76646
Q 3.01427
ω 214.7563
Node 77.1790
m 250.6247
n 0.2006
Epoch 2460800.5
nobs 4449
nopp 25
Years observed 1981-2025
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent Koronis (158)
 
ap 2.892
ep 0.049
sin(ip) 0.036
G 0.150
H 12.880
Mass
D 7.56 0.311
pV 0.282 0.0516
Value
Rotational Period 3.286
Period quality 2
Spectral Class S
Spectral Class Score 5.815
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
158 Koronis 0 Koronis Novakovic 2019EPSC...13.1671N HCM
158 Koronis 605 Koronis 0.2700 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8920 0.0486 0.0357 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.56 0.311 0.311 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.282 0.0516 0.0516 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
12.88 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.28603 2 Sidereal Durech 2023A&A...675A..24D Model
3.286043 2 Sidereal Durech 2020A&A...643A..59D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
Kl Kl None None Movis NIR Popescu 2018A&A...617A..12P PHOT
S S 0.9692 0.9692 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT