1999 XO156

1999XO156, 1998 QL61, 1998QL61, 43166, J98Q61L, J99XF6O

All data for this body: [vot]

MPC data
Name (number) 1999 XO156 (43166)
a 2.74140
e 0.12412
i / sin(i) 4.6447 / 0.08098
q 2.40113
Q 3.08168
ω 210.6809
Node 135.5562
m 296.0447
n 0.2171
Epoch 2460800.5
nobs 1867
nopp 23
Years observed 1995-2025
rms 0.77
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.741
ep 0.088
sin(ip) 0.066
G 0.150
H 14.600
Mass
D 6.60 0.281
pV 0.081 0.0154
Value
Rotational Period 51.990
Period quality 2
Spectral Class C
Spectral Class Score 14.333
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7408 0.0882 0.0657 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.59 0.283 0.283 Masiero 2011ApJ...741...68M NEATM
7.44 2.394 2.394 Masiero 2017AJ....154..168M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.056 0.0414 0.0414 Masiero 2017AJ....154..168M NEATM
0.085 0.0166 0.0166 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
14.60 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
51.997 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
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.76 Bus VIS Carvano 2010A&A...510A..43C PHOT
C 0.960 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C C 0.8422 0.4790 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X C 0.5473 0.4790 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X C 0.6358 0.4790 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT