1981 ER38

1981ER38, 2001 QN144, 2001QN144, 58130, J81E38R, K01QE4N

All data for this body: [vot]

MPC data
Name (number) 1981 ER38 (58130)
a 2.66659
e 0.16033
i / sin(i) 11.5314 / 0.19990
q 2.23905
Q 3.09414
ω 267.4052
Node 189.1099
m 117.4145
n 0.2263
Epoch 2460800.5
nobs 1453
nopp 19
Years observed 1981-2025
rms 0.82
Best values
[raw, vot]

Value Standard error
Parent Adeona (145)
 
ap 2.666
ep 0.168
sin(ip) 0.208
G 0.150
H 15.310
Mass
D 5.25 0.992
pV 0.052 0.0141
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 21.497
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
145 Adeona 0 Adeona Novakovic 2019EPSC...13.1671N HCM
145 Adeona 505 Adeona -0.1000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6655 0.1678 0.2083 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.74 1.450 1.450 Nugent 2016AJ....152...63N NEATM
5.70 1.360 1.360 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.050 0.0160 0.0160 Masiero 2012ApJ...759L...8M NEATM
0.060 0.0300 0.0300 Nugent 2016AJ....152...63N 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
15.31 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 0.644 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C C 0.3473 0.3170 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.3531 0.3170 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.4674 0.3170 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.4714 0.3170 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.6150 0.3170 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.7886 0.3170 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L C 0.2449 0.3170 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X C 0.1901 0.3170 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X C 0.8342 0.3170 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B C 0.0205 0.3170 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.62 Bus VIS Carvano 2010A&A...510A..43C PHOT