1999 SP9

1999SP9, 1998 KK23, 1998KK23, 40725, J98K23K, J99S09P

All data for this body: [vot]

MPC data
Name (number) 1999 SP9 (40725)
a 2.66361
e 0.13082
i / sin(i) 12.2966 / 0.21297
q 2.31515
Q 3.01207
ω 51.9095
Node 217.6693
m 42.8669
n 0.2267
Epoch 2460800.5
nobs 1391
nopp 21
Years observed 1995-2025
rms 0.79
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.663
ep 0.136
sin(ip) 0.223
G 0.150
H 15.040
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 5.874
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
15 Eunomia 0 Eunomia Novakovic 2019EPSC...13.1671N HCM
15 Eunomia 502 Eunomia 0.1100 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6633 0.1356 0.2233 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
15.04 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 0.979 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT