1999 XM99

1999XM99, 41283, J99X99M

All data for this body: [vot]

MPC data
Name (number) 1999 XM99 (41283)
a 3.96722
e 0.21162
i / sin(i) 11.5999 / 0.20108
q 3.12766
Q 4.80677
ω 273.5337
Node 84.9341
m 147.5321
n 0.1247
Epoch 2460800.5
nobs 3002
nopp 24
Years observed 1998-2025
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.965
ep 0.155
sin(ip) 0.180
G 0.150
H 12.410
Mass
D 18.36 0.475
pV 0.066 0.0109
Value
Rotational Period
Period quality None
Spectral Class D
Spectral Class Score 32.140
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.9645 0.1555 0.1796 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
17.71 0.550 0.550 Grav 2012ApJ...744..197G NEATM
19.88 3.980 3.980 Ali-Lagoa 2018A&A...612A..85A NEATM
20.16 0.990 0.990 Usui 2011PASJ...63.1117U NEATM
22.23 4.450 4.450 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.048 0.0190 0.0190 Ali-Lagoa 2018A&A...612A..85A NEATM
0.059 0.0240 0.0240 Ali-Lagoa 2018A&A...612A..85A NEATM
0.081 0.0160 0.0160 Grav 2012ApJ...744..197G 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
D D 0.0254 0.3760 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.4971 0.3760 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.6376 0.3760 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.7377 0.3760 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.7431 0.3760 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.8783 0.3760 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.8904 0.3760 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.9470 0.3760 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT