Ehrsson

02274, 1931 AU, 1931AU, 1935 FO, 1935FO, 1950 HN1, 1950HN1, 1957 DB, 1957DB, 1976 EA, 1976EA, J31A00U, J35F00O, J50H01N, J57D00B, J76E00A

All data for this body: [vot]

MPC data
Name (number) Ehrsson (2274)
a 2.41137
e 0.22670
i / sin(i) 2.2348 / 0.03899
q 1.86472
Q 2.95802
ω 187.8759
Node 348.0498
m 42.6180
n 0.2632
Epoch 2460800.5
nobs 5339
nopp 33
Years observed 1931-2025
rms 0.64
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.404
ep 0.264
sin(ip) 0.041
G 0.150
H 12.620
Mass
D 7.81 0.042
pV 0.338 0.0344
Value
Rotational Period 78.000
Period quality 3-
Spectral Class S
Spectral Class Score 21.345
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4035 0.2644 0.0406 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.68 0.060 0.060 Masiero 2014ApJ...791..121M NEATM
7.86 1.010 1.010 Masiero 2012ApJ...759L...8M NEATM
7.91 1.580 1.580 Ali-Lagoa 2018A&A...612A..85A NEATM
7.93 0.059 0.059 Masiero 2011ApJ...741...68M NEATM
8.19 0.550 0.550 Usui 2011PASJ...63.1117U NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.296 0.1180 0.1180 Ali-Lagoa 2018A&A...612A..85A NEATM
0.305 0.1030 0.1030 Masiero 2012ApJ...759L...8M NEATM
0.338 0.0500 0.0500 Masiero 2011ApJ...741...68M NEATM
0.360 0.0600 0.0600 Masiero 2014ApJ...791..121M 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
12.62 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
78.0 2 Synodic Behrend LCDB Lightcurve
78.0 3- Synodic Pravec LCDB Lightcurve
80.559 2 Sidereal Durech 2020A&A...643A..59D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.62 Bus VIS Carvano 2010A&A...510A..43C PHOT
S 0.968 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S None None Movis NIR Popescu 2018A&A...617A..12P PHOT
S S 0.8895 0.9380 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9933 0.9380 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT