1999 XW170

1999XW170, 16146, 1982 BV12, 1982BV12, 1985 XG1, 1985XG1, J82B12V, J85X01G, J99XH0W

All data for this body: [vot]

MPC data
Name (number) 1999 XW170 (16146)
a 2.77698
e 0.14662
i / sin(i) 7.3384 / 0.12773
q 2.36982
Q 3.18415
ω 359.7280
Node 308.7438
m 308.9103
n 0.2130
Epoch 2460800.5
nobs 4477
nopp 24
Years observed 1982-2025
rms 0.58
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.777
ep 0.133
sin(ip) 0.141
G 0.150
H 13.630
Mass
D 5.41 0.284
pV 0.240 0.0411
Value
Rotational Period 21.660
Period quality 2
Spectral Class S
Spectral Class Score 9.614
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7767 0.1332 0.1413 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.41 0.284 0.284 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.240 0.0411 0.0411 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
13.63 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
21.663 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
L 0.296 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.61 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.3857 0.5120 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.6799 0.5120 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT