1981 DF3

1981DF3, 99971, J81D03F

All data for this body: [vot]

MPC data
Name (number) 1981 DF3 (99971)
a 2.79669
e 0.25640
i / sin(i) 10.2015 / 0.17711
q 2.07961
Q 3.51377
ω 300.4542
Node 308.2461
m 106.4206
n 0.2107
Epoch 2460800.5
nobs 1169
nopp 19
Years observed 1981-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.798
ep 0.269
sin(ip) 0.206
G 0.150
H 15.300
Mass
D 4.68 0.066
pV 0.089 0.0123
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7984 0.2694 0.2056 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.68 0.066 0.066 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.089 0.0123 0.0123 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
15.30 MPC-2023-12-04 MPC-2023-12-04 Phot