1998 DW9

1998DW9, 1993 JA1, 1993JA1, 2014 SW289, 2014SW289, 28029, J93J01A, J98D09W, K14SS9W

All data for this body: [vot]

MPC data
Name (number) 1998 DW9 (28029)
a 3.42281
e 0.11070
i / sin(i) 7.5687 / 0.13172
q 3.04390
Q 3.80171
ω 175.2543
Node 246.2402
m 199.5937
n 0.1556
Epoch 2460800.5
nobs 3708
nopp 24
Years observed 1993-2025
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.430
ep 0.080
sin(ip) 0.148
G 0.150
H 12.410
Mass
D 16.09 0.190
pV 0.087 0.0077
Value
Rotational Period
Period quality None
Spectral Class L&D
Spectral Class Score 2.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.4305 0.0803 0.1483 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
15.66 0.300 0.300 Masiero 2014ApJ...791..121M NEATM
16.37 0.246 0.246 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.087 0.0083 0.0083 Masiero 2011ApJ...741...68M NEATM
0.090 0.0200 0.0200 Masiero 2014ApJ...791..121M 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
12.41 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
L&D D DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT