1981 DA2

1981DA2, 16370, 1998 FO108, 1998FO108, J81D02A, J98FA8O

All data for this body: [vot]

MPC data
Name (number) 1981 DA2 (16370)
a 3.15665
e 0.12425
i / sin(i) 6.7542 / 0.11761
q 2.76445
Q 3.54885
ω 96.1739
Node 295.6248
m 89.5445
n 0.1757
Epoch 2460800.5
nobs 1665
nopp 22
Years observed 1981-2025
rms 0.78
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.164
ep 0.086
sin(ip) 0.139
G 0.150
H 14.130
Mass
D 5.59 0.392
pV 0.161 0.0391
Value
Rotational Period
Period quality None
Spectral Class X
Spectral Class Score 4.681
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1641 0.0857 0.1392 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.23 0.708 0.708 Masiero 2011ApJ...741...68M NEATM
5.75 0.470 0.470 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.147 0.0440 0.0440 Masiero 2012ApJ...759L...8M NEATM
0.214 0.0856 0.0856 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
14.13 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 0.79 Bus VIS Carvano 2010A&A...510A..43C PHOT
X DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
X X 0.4468 0.4468 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT