1981 DB3

1981DB3, 1991 RO4, 1991RO4, 19928, J81D03B, J91R04O

All data for this body: [vot]

MPC data
Name (number) 1981 DB3 (19928)
a 2.61052
e 0.20327
i / sin(i) 8.1123 / 0.14111
q 2.07988
Q 3.14117
ω 131.4648
Node 231.3878
m 346.6231
n 0.2337
Epoch 2460800.5
nobs 1848
nopp 28
Years observed 1949-2025
rms 0.73
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.610
ep 0.167
sin(ip) 0.158
G 0.150
H 14.440
Mass
D
pV
Value
Rotational Period 3.420
Period quality 2
Spectral Class Ds
Spectral Class Score 1.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6103 0.1669 0.1576 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
14.44 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.429 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
Ds Ad None None Movis NIR Popescu 2018A&A...617A..12P PHOT