Platanus

09309, 1987 SS9, 1987SS9, 1989 AC4, 1989AC4, J87S09S, J89A04C

All data for this body: [vot]

MPC data
Name (number) Platanus (9309)
a 3.19096
e 0.17372
i / sin(i) 2.6243 / 0.04579
q 2.63665
Q 3.74528
ω 289.4312
Node 113.2114
m 206.9511
n 0.1729
Epoch 2460800.5
nobs 3312
nopp 28
Years observed 1954-2025
rms 0.60
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.181
ep 0.159
sin(ip) 0.026
G 0.150
H 13.800
Mass
D 8.33 1.860
pV 0.111 0.0500
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 5.854
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 0 Themis Novakovic 2019EPSC...13.1671N HCM
24 Themis 602 Themis 0.4100 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1809 0.1587 0.0263 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
8.33 1.860 1.860 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.111 0.0500 0.0500 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
13.80 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
C 0.891 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C C 0.0847 0.0847 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT