Eri

01402, 1936 OC, 1936OC, 1949 MS, 1949MS, J36O00C, J49M00S

All data for this body: [vot]

MPC data
Name (number) Eri (1402)
a 2.68371
e 0.15436
i / sin(i) 14.2943 / 0.24690
q 2.26946
Q 3.09797
ω 11.5518
Node 266.9412
m 83.4960
n 0.2242
Epoch 2460800.5
nobs 4064
nopp 31
Years observed 1936-2025
rms 0.65
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.685
ep 0.160
sin(ip) 0.257
G 0.150
H 12.800
Mass
D 14.37 0.077
pV 0.040 0.0044
Value
Rotational Period
Period quality None
Spectral Class X
Spectral Class Score 2.622
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6849 0.1599 0.2566 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.21 0.078 0.078 Masiero 2011ApJ...741...68M NEATM
15.06 3.540 3.540 Masiero 2021PSJ.....2..162M NEATM
15.55 4.970 4.970 Masiero 2021PSJ.....2..162M NEATM
16.64 6.200 6.200 Masiero 2021PSJ.....2..162M NEATM
16.96 4.110 4.110 Masiero 2021PSJ.....2..162M NEATM
18.21 1.820 1.820 Ali-Lagoa 2018A&A...612A..85A NEATM
18.58 0.420 0.420 Usui 2011PASJ...63.1117U NEATM
19.73 3.950 3.950 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.037 0.0056 0.0056 Masiero 2011ApJ...741...68M NEATM
0.037 0.0130 0.0200 Masiero 2021PSJ.....2..162M NEATM
0.037 0.0160 0.0270 Masiero 2021PSJ.....2..162M NEATM
0.039 0.0220 0.0530 Masiero 2021PSJ.....2..162M NEATM
0.042 0.0170 0.0170 Ali-Lagoa 2018A&A...612A..85A NEATM
0.049 0.0100 0.0100 Ali-Lagoa 2018A&A...612A..85A NEATM
0.059 0.0250 0.0440 Masiero 2021PSJ.....2..162M 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
12.80 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
X 0.437 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT