Estens

04638, 1983 LK, 1983LK, 1986 JW1, 1986JW1, 1989 EG, 1989EG, J83L00K, J86J01W, J89E00G

All data for this body: [vot]

MPC data
Name (number) Estens (4638)
a 2.19344
e 0.08962
i / sin(i) 3.5090 / 0.06121
q 1.99687
Q 2.39001
ω 260.4953
Node 277.0942
m 35.9423
n 0.3034
Epoch 2460800.5
nobs 3991
nopp 30
Years observed 1955-2025
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.193
ep 0.147
sin(ip) 0.068
G 0.150
H 13.800
Mass
D 4.37 0.343
pV 0.226 0.0571
Value
Rotational Period 3.020
Period quality 2-
Spectral Class S
Spectral Class Score 6.388
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.1933 0.1470 0.0680 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.80 0.650 0.650 Nugent 2016AJ....152...63N NEATM
4.59 0.404 0.404 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.210 0.0617 0.0617 Masiero 2011ApJ...741...68M NEATM
0.320 0.1500 0.1500 Nugent 2016AJ....152...63N 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
13.80 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.029 2- Synodic Pravec LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 0.898 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S None None Movis NIR Popescu 2018A&A...617A..12P PHOT