Erin

02167, 1938 EV, 1938EV, 1954 CH, 1954CH, 1971 LA, 1971LA, 1973 WG, 1973WG, 1973 YF1, 1973YF1, J38E00V, J54C00H, J71L00A, J73W00G, J73Y01F

All data for this body: [vot]

MPC data
Name (number) Erin (2167)
a 2.54062
e 0.18762
i / sin(i) 6.0209 / 0.10489
q 2.06394
Q 3.01731
ω 274.6980
Node 252.6885
m 166.4595
n 0.2434
Epoch 2460800.5
nobs 8078
nopp 32
Years observed 1954-2025
rms 0.49
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.542
ep 0.235
sin(ip) 0.129
G 0.150
H 12.300
Mass
D 10.26 0.283
pV 0.318 0.0272
Value
Rotational Period 5.718
Period quality 3
Spectral Class S
Spectral Class Score 9.900
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5422 0.2346 0.1292 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.29 0.470 0.470 Usui 2011PASJ...63.1117U NEATM
12.66 2.530 2.530 Ali-Lagoa 2018A&A...612A..85A NEATM
13.03 2.610 2.610 Ali-Lagoa 2018A&A...612A..85A NEATM
8.36 1.590 1.590 Nugent 2016AJ....152...63N NEATM
9.00 0.370 0.370 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.173 0.0690 0.0690 Ali-Lagoa 2018A&A...612A..85A NEATM
0.183 0.0730 0.0730 Ali-Lagoa 2018A&A...612A..85A NEATM
0.310 0.1600 0.1600 Nugent 2016AJ....152...63N NEATM
0.379 0.0330 0.0330 Masiero 2012ApJ...759L...8M 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
12.30 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
5.7186 3 Synodic Montigiani 2008MPBu...35..107M Lightcurve
5.71924 2 Sidereal Durech 2020A&A...643A..59D Model
5.71954 2 Synodic Pal 2020ApJS..247...26P Lightcurve
5.722 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
5.8 2 Synodic Stecher 2008MPBu...35...76S Lightcurve
6.493 0 Synodic Montigiani 2007MPBu...34..111M Lightcurve
7.0 2 Synodic Lagerkvist 1978A&AS...31..361L Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S Bus VIS Bus 2002Icar..158..146B SPEC
S 0.980000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC