Hansen

04775, 1927 TC, 1927TC, 1990 JA, 1990JA, J27T00C, J90J00A

All data for this body: [vot]

MPC data
Name (number) Hansen (4775)
a 2.39346
e 0.45296
i / sin(i) 9.2730 / 0.16114
q 1.30932
Q 3.47759
ω 7.8728
Node 336.4323
m 122.1780
n 0.2662
Epoch 2460800.5
nobs 3244
nopp 28
Years observed 1927-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent
 
ap
ep
sin(ip)
G 0.150
H 13.960
Mass
D 5.10 0.800
pV 0.210 0.0600
Value
Rotational Period 3.118
Period quality 3
Spectral Class L
Spectral Class Score 30.000
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.10 0.800 0.800 Ali-Lagoa 2017A&A...603A..55A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.210 0.0600 0.0600 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
13.96 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
20.7268 2 Synodic Pal 2020ApJS..247...26P Lightcurve
3.1182 3 Synodic Sada 2017MPBu...44..239S Lightcurve
3.1185 3 Synodic Pravec LCDB Lightcurve
3.1187 3 Synodic Sada 2017MPBu...44..239S Lightcurve
3.12349 3 Synodic Fornas LCDB Lightcurve
3.124 3 Synodic Warner 2017MPBu...44..116W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
L Bus-DeMeo VISNIR Binzel 2019Icar..324...41B SPEC+PHOT
S S 0.4807 0.5740 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.6202 0.5740 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X 0.14 Bus VIS Carvano 2010A&A...510A..43C PHOT