1981 DJ

1981DJ, 16369, J81D00J

All data for this body: [vot]

MPC data
Name (number) 1981 DJ (16369)
a 3.21018
e 0.04975
i / sin(i) 8.8537 / 0.15391
q 3.05048
Q 3.36988
ω 329.6253
Node 230.6726
m 240.2050
n 0.1714
Epoch 2460800.5
nobs 2548
nopp 23
Years observed 1981-2025
rms 0.74
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.203
ep 0.079
sin(ip) 0.168
G 0.150
H 13.700
Mass
D 10.72 0.148
pV 0.036 0.0043
Value
Rotational Period
Period quality None
Spectral Class X
Spectral Class Score 3.966
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.2025 0.0794 0.1683 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.58 0.215 0.215 Masiero 2011ApJ...741...68M NEATM
10.85 0.205 0.205 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.034 0.0093 0.0093 Masiero 2011ApJ...741...68M NEATM
0.036 0.0049 0.0049 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
13.70 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 0.52 Bus VIS Carvano 2010A&A...510A..43C PHOT
X DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
X X 0.3276 0.3276 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT