1981 DP1

1981DP1, 1999 LA26, 1999LA26, 39481, J81D01P, J99L26A

All data for this body: [vot]

MPC data
Name (number) 1981 DP1 (39481)
a 2.30774
e 0.13085
i / sin(i) 6.6748 / 0.11623
q 2.00577
Q 2.60971
ω 48.1556
Node 247.7391
m 114.1954
n 0.2811
Epoch 2460800.5
nobs 1932
nopp 20
Years observed 1981-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent Vesta (4)
 
ap 2.307
ep 0.101
sin(ip) 0.128
G 0.150
H 15.370
Mass
D 1.85 0.245
pV 0.325 0.0715
Value
Rotational Period 4.053
Period quality 2
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
4 Vesta 0 Vesta Novakovic 2019EPSC...13.1671N HCM
4 Vesta 401 Vesta Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3072 0.1009 0.1281 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
1.85 0.245 0.245 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.325 0.0715 0.0715 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
15.37 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.05356 2 Synodic Pal 2020ApJS..247...26P Lightcurve