1981 DP3

1981DP3, 1999 SR21, 1999SR21, 39484, J81D03P, J99S21R

All data for this body: [vot]

MPC data
Name (number) 1981 DP3 (39484)
a 3.03235
e 0.04154
i / sin(i) 9.6821 / 0.16818
q 2.90637
Q 3.15832
ω 308.6999
Node 223.7578
m 138.6462
n 0.1867
Epoch 2460800.5
nobs 1319
nopp 23
Years observed 1981-2025
rms 0.79
Best values
[raw, vot]

Value Standard error
Parent Eos (221)
 
ap 3.033
ep 0.080
sin(ip) 0.184
G 0.150
H 14.620
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class D
Spectral Class Score 3.129
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
221 Eos 0 Eos Novakovic 2019EPSC...13.1671N HCM
221 Eos 606 Eos 0.0700 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0327 0.0796 0.1838 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
14.62 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
D S 0.2160 0.2740 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D S 0.3055 0.2740 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
LS 0.16 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.4875 0.2740 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT