Purpurea

08585, 1992 EQ21, 1992EQ21, 2025 P-L, 2025P-L, J92E21Q, PLS2025

All data for this body: [vot]

MPC data
Name (number) Purpurea (8585)
a 3.23682
e 0.16063
i / sin(i) 9.4463 / 0.16412
q 2.71689
Q 3.75676
ω 234.5982
Node 357.6974
m 222.9483
n 0.1692
Epoch 2460800.5
nobs 4483
nopp 26
Years observed 1960-2025
rms 0.65
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.207
ep 0.201
sin(ip) 0.176
G 0.150
H 12.530
Mass
D 17.48 0.136
pV 0.040 0.0029
Value
Rotational Period
Period quality None
Spectral Class D
Spectral Class Score 9.542
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.2070 0.2013 0.1757 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
16.72 0.470 0.470 Masiero 2012ApJ...759L...8M NEATM
16.82 0.200 0.200 Masiero 2014ApJ...791..121M NEATM
17.12 4.420 4.420 Nugent 2016AJ....152...63N NEATM
18.30 0.203 0.203 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.036 0.0032 0.0032 Masiero 2011ApJ...741...68M NEATM
0.050 0.0100 0.0100 Masiero 2014ApJ...791..121M NEATM
0.070 0.0400 0.0400 Nugent 2016AJ....152...63N NEATM
0.076 0.0120 0.0120 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
12.53 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
D 0.59 Bus VIS Carvano 2010A&A...510A..43C PHOT
D D 0.5553 0.7260 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.8383 0.7260 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT