1999 XK229

1999XK229, 2001 AP36, 2001AP36, 38601, J99XM9K, K01A36P

All data for this body: [vot]

MPC data
Name (number) 1999 XK229 (38601)
a 3.49351
e 0.10497
i / sin(i) 9.8125 / 0.17042
q 3.12679
Q 3.86023
ω 24.3706
Node 0.6431
m 338.6418
n 0.1509
Epoch 2460800.5
nobs 1743
nopp 22
Years observed 1998-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent Sylvia (87)
 
ap 3.499
ep 0.064
sin(ip) 0.174
G 0.150
H 13.940
Mass
D
pV
Value
Rotational Period 4.906
Period quality 2
Spectral Class C
Spectral Class Score 16.701
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
87 Sylvia 0 Sylvia Novakovic 2019EPSC...13.1671N HCM
87 Sylvia 603 Sylvia Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.4994 0.0642 0.1744 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
13.94 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.90581 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B C 0.1966 0.2500 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B C 0.7123 0.2500 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.76 Bus VIS Carvano 2010A&A...510A..43C PHOT
C C 0.2206 0.2500 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.3456 0.2500 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.3899 0.2500 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.4733 0.2500 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.7674 0.2500 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
K C 0.2154 0.2500 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S C 0.4800 0.2500 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X C 0.2052 0.2500 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT