Eureka

05261, 1990 MB, 1990MB, J90M00B

All data for this body: [vot]

MPC data
Name (number) Eureka (5261)
a 1.52359
e 0.06479
i / sin(i) 20.2823 / 0.34665
q 1.42487
Q 1.62231
ω 95.5938
Node 245.0156
m 127.1488
n 0.5241
Epoch 2460800.5
nobs 2713
nopp 18
Years observed 1982-2025
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent
 
ap
ep
sin(ip)
G 0.150
H 16.100
Mass
D 1.92 0.187
pV 0.128 0.0249
Value
Rotational Period 2.690
Period quality 3
Spectral Class Sa
Spectral Class Score 42.000
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
1.56 0.300 0.300 Nugent 2016AJ....152...63N NEATM
2.00 0.300 0.300 Ali-Lagoa 2017A&A...603A..55A NEATM
2.40 0.400 0.400 Ali-Lagoa 2017A&A...603A..55A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.110 0.0300 0.0300 Ali-Lagoa 2017A&A...603A..55A NEATM
0.160 0.0500 0.0500 Ali-Lagoa 2017A&A...603A..55A NEATM
0.200 0.1000 0.1000 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
16.10 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
2.6902 3 Synodic Koehn 2014MPBu...41..286K Lightcurve
6.0 1 Synodic Rivkin 2003Icar..165..349R Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
A 1.000000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
S S 0.0926 0.0920 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
Sa Bus-DeMeo VISNIR Binzel 2019Icar..324...41B SPEC
Sa Bus-DeMeo VISNIR DeMeo 2009Icar..202..160D SPEC
Sr Bus VIS Bus 2002Icar..158..146B SPEC