1981 DD2

1981DD2, 2000 WX84, 2000WX84, 39482, J81D02D, K00W84X

All data for this body: [vot]

MPC data
Name (number) 1981 DD2 (39482)
a 3.03829
e 0.08497
i / sin(i) 7.6880 / 0.13378
q 2.78013
Q 3.29646
ω 252.2607
Node 267.4235
m 138.8481
n 0.1861
Epoch 2460800.5
nobs 991
nopp 22
Years observed 1981-2025
rms 0.81
Best values
[raw, vot]

Value Standard error
Parent Emma (283)
 
ap 3.039
ep 0.116
sin(ip) 0.160
G 0.150
H 14.990
Mass
D 7.58 0.294
pV 0.059 0.0112
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 7.268
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
283 Emma 0 Emma Novakovic 2019EPSC...13.1671N HCM
283 Emma 607 Emma -0.3100 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0388 0.1160 0.1598 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.58 0.294 0.294 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.059 0.0112 0.0112 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
14.99 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.47 Bus VIS Carvano 2010A&A...510A..43C PHOT
C C 0.7213 0.7213 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT