1991 WD

1991WD, 13078, 1997 KD, 1997KD, J91W00D, J97K00D

All data for this body: [vot]

MPC data
Name (number) 1991 WD (13078)
a 2.61446
e 0.22083
i / sin(i) 13.8813 / 0.23991
q 2.03711
Q 3.19182
ω 35.3166
Node 89.3241
m 286.5010
n 0.2331
Epoch 2460800.5
nobs 8724
nopp 23
Years observed 1991-2025
rms 0.38
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.615
ep 0.254
sin(ip) 0.221
G 0.150
H 14.130
Mass
D 5.09 0.200
pV 0.247 0.0303
Value
Rotational Period 7.094
Period quality 2
Spectral Class X
Spectral Class Score 5.741
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6151 0.2542 0.2206 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.09 0.200 0.200 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.247 0.0303 0.0303 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
14.13 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
7.0945 2 Synodic Arminski 2022MPBu...49..296A Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
D 0.61 Bus VIS Carvano 2010A&A...510A..43C PHOT
L X 0.3061 0.4590 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S 0.104 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
X DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
X X 0.6235 0.4590 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT