1981 ES16

1981ES16, 1997 CA2, 1997CA2, 42471, J81E16S, J97C02A

All data for this body: [vot]

MPC data
Name (number) 1981 ES16 (42471)
a 2.57280
e 0.14210
i / sin(i) 3.1182 / 0.05440
q 2.20721
Q 2.93839
ω 294.7587
Node 315.7136
m 199.8160
n 0.2388
Epoch 2460800.5
nobs 977
nopp 22
Years observed 1981-2024
rms 0.80
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.571
ep 0.141
sin(ip) 0.061
G 0.150
H 16.090
Mass
D 3.85 0.078
pV 0.048 0.0024
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 5.982
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5708 0.1406 0.0614 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.78 0.122 0.122 Masiero 2011ApJ...741...68M NEATM
3.90 0.102 0.102 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.047 0.0025 0.0025 Masiero 2011ApJ...741...68M NEATM
0.049 0.0091 0.0091 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
16.09 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
C 0.997 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT