1989 WD

1989WD, 08359, 1991 HB, 1991HB, J89W00D, J91H00B

All data for this body: [vot]

MPC data
Name (number) 1989 WD (8359)
a 2.34925
e 0.06694
i / sin(i) 7.6323 / 0.13282
q 2.19200
Q 2.50651
ω 128.4636
Node 63.1525
m 178.9559
n 0.2737
Epoch 2460800.5
nobs 6079
nopp 25
Years observed 1989-2025
rms 0.55
Best values
[raw, vot]

Value Standard error
Parent Vesta (4)
 
ap 2.350
ep 0.106
sin(ip) 0.121
G 0.150
H 13.490
Mass
D 8.16 0.091
pV 0.196 0.0194
Value
Rotational Period 2.891
Period quality 3
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
4 Vesta 0 Vesta Novakovic 2019EPSC...13.1671N HCM
4 Vesta 401 Vesta Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3500 0.1063 0.1206 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.35 0.400 0.400 Masiero 2012ApJ...759L...8M NEATM
7.43 1.840 1.840 Nugent 2016AJ....152...63N NEATM
8.10 0.300 0.300 Hanus 2018Icar..309..297H RADIOMETRY_TPM
8.10 0.400 0.400 Hanus 2018Icar..309..297H RADIOMETRY_TPM
8.22 0.102 0.102 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.120 0.0700 0.0700 Nugent 2016AJ....152...63N NEATM
0.188 0.0260 0.0260 Masiero 2012ApJ...759L...8M NEATM
0.224 0.0320 0.0320 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
13.49 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
2.89 3 Synodic Brinsfield 2009MPBu...36..169B Lightcurve
2.891 2 Synodic Erasmus 2020ApJS..247...13E Lightcurve
2.891 3- Synodic Behrend LCDB Lightcurve
2.89103 2 Sidereal Hanus 2013A&A...551A..67H Model
2.89111 3 Synodic Higgins 2009MPBu...36..159H Lightcurve
3.075 2 Synodic Hamanowa LCDB Lightcurve