1999 XR181

1999XR181, 71143, J99XI1R

All data for this body: [vot]

MPC data
Name (number) 1999 XR181 (71143)
a 2.60075
e 0.20999
i / sin(i) 14.4741 / 0.24994
q 2.05463
Q 3.14688
ω 283.9981
Node 33.8474
m 109.3298
n 0.2350
Epoch 2460800.5
nobs 3310
nopp 20
Years observed 1999-2025
rms 0.62
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.599
ep 0.161
sin(ip) 0.250
G 0.150
H 13.740
Mass
D 5.15 0.206
pV 0.259 0.0284
Value
Rotational Period 12.560
Period quality 2
Spectral Class S
Spectral Class Score 20.097
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5987 0.1606 0.2503 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.04 0.221 0.221 Masiero 2011ApJ...741...68M NEATM
5.67 1.360 1.360 Nugent 2016AJ....152...63N NEATM
5.85 0.700 0.700 Masiero 2011ApJ...741...68M NEATM
6.14 1.410 1.410 Nugent 2016AJ....152...63N NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.170 0.1100 0.1100 Nugent 2016AJ....152...63N NEATM
0.180 0.0800 0.0800 Nugent 2016AJ....152...63N NEATM
0.225 0.0560 0.0560 Masiero 2011ApJ...741...68M NEATM
0.304 0.0383 0.0383 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
13.74 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
12.566 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
D S 0.1930 0.4340 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L 0.452 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.5620 0.4340 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.8526 0.4340 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9611 0.4340 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9738 0.4340 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT