1999 BT2

1999BT2, 2001 RO9, 2001RO9, J99B02T, K01R09O, N1716

All data for this body: [vot]

MPC data
Name (number) 1999 BT2 (231716)
a 2.40534
e 0.34120
i / sin(i) 23.8577 / 0.40447
q 1.58465
Q 3.22604
ω 144.6384
Node 322.3463
m 24.1961
n 0.2642
Epoch 2460800.5
nobs 1391
nopp 12
Years observed 1999-2025
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.400
ep 0.341
sin(ip) 0.391
G 0.150
H 15.270
Mass
D 2.31 0.240
pV 0.194 0.0407
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 11.804
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4003 0.3413 0.3909 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.20 0.300 0.300 Ali-Lagoa 2017A&A...603A..55A NEATM
2.50 0.400 0.400 Ali-Lagoa 2017A&A...603A..55A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.180 0.0500 0.0500 Ali-Lagoa 2017A&A...603A..55A NEATM
0.220 0.0700 0.0700 Ali-Lagoa 2017A&A...603A..55A 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
15.27 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 Carry PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S None Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.9673 0.9673 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT