1999 TO186

1999TO186, 1990 HH4, 1990HH4, 2000 XY43, 2000XY43, 38504, J90H04H, J99TI6O, K00X43Y

All data for this body: [vot]

MPC data
Name (number) 1999 TO186 (38504)
a 2.52389
e 0.20610
i / sin(i) 16.0569 / 0.27659
q 2.00371
Q 3.04408
ω 263.8084
Node 357.4013
m 238.9252
n 0.2458
Epoch 2460800.5
nobs 4218
nopp 21
Years observed 1990-2025
rms 0.65
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.528
ep 0.195
sin(ip) 0.293
G 0.150
H 13.590
Mass
D 6.10 0.038
pV 0.150 0.0150
Value
Rotational Period 18.122
Period quality 2
Spectral Class L
Spectral Class Score 2.760
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5277 0.1948 0.2929 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.42 0.118 0.118 Masiero 2011ApJ...741...68M NEATM
5.88 0.070 0.070 Masiero 2014ApJ...791..121M NEATM
6.33 0.050 0.050 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.133 0.0283 0.0283 Masiero 2011ApJ...741...68M NEATM
0.150 0.0200 0.0200 Masiero 2014ApJ...791..121M NEATM
0.182 0.0377 0.0377 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
13.59 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
18.1221 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 0.460 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT