Langley

03866, 1941 SD2, 1941SD2, 1964 XK, 1964XK, 1975 XC7, 1975XC7, 1975 YN, 1975YN, 1977 CO1, 1977CO1, 1980 TU9, 1980TU9, 1983 AL2, 1983AL2, 1985 OJ, 1985OJ, 1986 XZ, 1986XZ, 1988 BH4, 1988BH4, J41S02D, J64X00K, J75X07C, J75Y00N, J77C01O, J80T09U, J83A02L, J85O00J, J86X00Z, J88B04H

All data for this body: [vot]

MPC data
Name (number) Langley (3866)
a 3.14980
e 0.18473
i / sin(i) 3.6442 / 0.06356
q 2.56795
Q 3.73166
ω 126.2135
Node 222.1246
m 21.9487
n 0.1763
Epoch 2460800.5
nobs 4430
nopp 36
Years observed 1941-2025
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.141
ep 0.166
sin(ip) 0.080
G 0.150
H 11.830
Mass
D 23.50 0.159
pV 0.043 0.0055
Value
Rotational Period 9.000
Period quality 2
Spectral Class D
Spectral Class Score 19.752
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1407 0.1663 0.0802 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
23.31 0.410 0.410 Masiero 2014ApJ...791..121M NEATM
23.50 0.175 0.175 Masiero 2011ApJ...741...68M NEATM
24.30 4.860 4.860 Ali-Lagoa 2018A&A...612A..85A NEATM
24.42 0.990 0.990 Usui 2011PASJ...63.1117U NEATM
26.91 5.380 5.380 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.040 0.0100 0.0100 Masiero 2014ApJ...791..121M NEATM
0.042 0.0072 0.0072 Masiero 2011ApJ...741...68M NEATM
0.052 0.0210 0.0210 Ali-Lagoa 2018A&A...612A..85A NEATM
0.064 0.0260 0.0260 Ali-Lagoa 2018A&A...612A..85A 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
11.83 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
9.4788 2 Sidereal Durech 2023A&A...675A..24D Model
9.47899 2 Sidereal Durech 2020A&A...643A..59D Model
9.5 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
D DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
D 0.93 Bus VIS Carvano 2010A&A...510A..43C PHOT
D 0.991 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
D D 0.6823 0.8540 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.9753 0.8540 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT