1999 XW229

1999XW229, 38602, J99XM9W

All data for this body: [vot]

MPC data
Name (number) 1999 XW229 (38602)
a 3.15850
e 0.18808
i / sin(i) 18.1497 / 0.31150
q 2.56446
Q 3.75254
ω 300.5464
Node 31.6769
m 257.0959
n 0.1756
Epoch 2460800.5
nobs 2056
nopp 22
Years observed 1997-2025
rms 0.76
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.168
ep 0.154
sin(ip) 0.307
G 0.150
H 13.450
Mass
D 12.71 0.081
pV 0.036 0.0068
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 7.905
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1679 0.1542 0.3067 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.19 3.120 3.120 Nugent 2016AJ....152...63N NEATM
12.71 0.081 0.081 Masiero 2011ApJ...741...68M NEATM
12.87 4.510 4.510 Nugent 2016AJ....152...63N NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.035 0.0069 0.0069 Masiero 2011ApJ...741...68M NEATM
0.050 0.0500 0.0500 Nugent 2016AJ....152...63N NEATM
0.050 0.0700 0.0700 Nugent 2016AJ....152...63N 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
13.45 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 DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C C 0.2971 0.5290 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.6871 0.5290 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
CX 0.12 Bus VIS Carvano 2010A&A...510A..43C PHOT