1981 EH1

1981EH1, 08619, 1931 DA1, 1931DA1, 1992 CA1, 1992CA1, J31D01A, J81E01H, J92C01A

All data for this body: [vot]

MPC data
Name (number) 1981 EH1 (8619)
a 3.13967
e 0.15534
i / sin(i) 6.8862 / 0.11990
q 2.65196
Q 3.62738
ω 354.6632
Node 151.9195
m 4.6267
n 0.1772
Epoch 2460800.5
nobs 4733
nopp 30
Years observed 1931-2025
rms 0.64
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.130
ep 0.195
sin(ip) 0.103
G 0.150
H 12.980
Mass
D 12.69 0.171
pV 0.100 0.0151
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 17.730
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1296 0.1950 0.1031 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.69 0.171 0.171 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.100 0.0151 0.0151 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
12.98 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
B DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
B C 0.6604 0.5330 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C 0.96 Bus VIS Carvano 2010A&A...510A..43C PHOT
C C 0.4960 0.5330 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.6030 0.5330 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.7283 0.5330 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.8077 0.5330 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT