1999 XR91

1999XR91, 43141, J99X91R

All data for this body: [vot]

MPC data
Name (number) 1999 XR91 (43141)
a 2.51629
e 0.10626
i / sin(i) 11.3965 / 0.19760
q 2.24892
Q 2.78366
ω 192.5187
Node 106.0184
m 294.8750
n 0.2469
Epoch 2460800.5
nobs 5139
nopp 23
Years observed 1991-2025
rms 0.62
Best values
[raw, vot]

Value Standard error
Parent
 
ap
ep
sin(ip)
G 0.150
H 13.850
Mass
D 4.94 0.083
pV 0.199 0.0206
Value
Rotational Period 9.542
Period quality 2
Spectral Class S
Spectral Class Score 10.577
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.94 0.083 0.083 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.199 0.0206 0.0206 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
13.85 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
9.54161 2 Synodic Pal 2020ApJS..247...26P Lightcurve
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 DeMeo 2013Icar..226..723D PHOT
S 0.118 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S 0.96 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.9915 0.9915 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT