1999 XA156

1999XA156, 1998 QN108, 1998QN108, 43165, J98QA8N, J99XF6A

All data for this body: [vot]

MPC data
Name (number) 1999 XA156 (43165)
a 2.58337
e 0.19268
i / sin(i) 8.0361 / 0.13980
q 2.08562
Q 3.08113
ω 185.2062
Node 107.2902
m 176.6957
n 0.2374
Epoch 2460800.5
nobs 1874
nopp 21
Years observed 1998-2025
rms 0.76
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.583
ep 0.177
sin(ip) 0.117
G 0.150
H 14.820
Mass
D 3.05 0.260
pV 0.275 0.0426
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 9.347
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5830 0.1772 0.1166 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.86 0.700 0.700 Masiero 2011ApJ...741...68M NEATM
3.08 0.280 0.280 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.269 0.0440 0.0440 Masiero 2012ApJ...759L...8M NEATM
0.374 0.1725 0.1725 Masiero 2011ApJ...741...68M 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
14.82 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
S DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.219 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.6721 0.6721 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X 0.15 Bus VIS Carvano 2010A&A...510A..43C PHOT