1998 XJ40

1998XJ40, 13809, 1987 YO3, 1987YO3, 1989 EV11, 1989EV11, J87Y03O, J89E11V, J98X40J

All data for this body: [vot]

MPC data
Name (number) 1998 XJ40 (13809)
a 3.08001
e 0.05597
i / sin(i) 7.2632 / 0.12643
q 2.90763
Q 3.25240
ω 212.0638
Node 2.9985
m 194.6240
n 0.1823
Epoch 2460800.5
nobs 3624
nopp 27
Years observed 1984-2025
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.079
ep 0.093
sin(ip) 0.130
G 0.150
H 13.140
Mass
D 15.10 0.107
pV 0.050 0.0042
Value
Rotational Period 40.250
Period quality 2
Spectral Class C
Spectral Class Score 8.132
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0787 0.0927 0.1299 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.19 1.390 1.390 Usui 2011PASJ...63.1117U NEATM
10.51 2.100 2.100 Ali-Lagoa 2018A&A...612A..85A NEATM
15.14 0.107 0.107 Masiero 2011ApJ...741...68M NEATM
19.77 6.490 6.490 Masiero 2021PSJ.....2..162M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.028 0.0130 0.0250 Masiero 2021PSJ.....2..162M NEATM
0.051 0.0043 0.0043 Masiero 2011ApJ...741...68M NEATM
0.117 0.0470 0.0470 Ali-Lagoa 2018A&A...612A..85A 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
13.14 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.81363 2 Sidereal Durech 2018A&A...620A..91D Model
40.256 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
B C 0.3530 0.3510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B C 0.3860 0.3510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C 0.92 Bus VIS Carvano 2010A&A...510A..43C PHOT
C C 0.4905 0.3510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.5581 0.3510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L C 0.7124 0.3510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT