1999 BL9

1999BL9, 15473, 1976 SM1, 1976SM1, 1984 SX4, 1984SX4, J76S01M, J84S04X, J99B09L

All data for this body: [vot]

MPC data
Name (number) 1999 BL9 (15473)
a 2.56158
e 0.13855
i / sin(i) 15.0127 / 0.25903
q 2.20668
Q 2.91647
ω 268.4147
Node 185.5397
m 225.4753
n 0.2404
Epoch 2460800.5
nobs 7065
nopp 24
Years observed 1976-2025
rms 0.54
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.562
ep 0.153
sin(ip) 0.267
G 0.150
H 12.870
Mass
D 6.97 0.340
pV 0.331 0.0510
Value
Rotational Period 4.460
Period quality 3
Spectral Class S
Spectral Class Score 20.697
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5621 0.1531 0.2666 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.97 0.340 0.340 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.331 0.0510 0.0510 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
12.87 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.467 3 Synodic Benishek LCDB Lightcurve
4.46844 2 Synodic Pal 2020ApJS..247...26P Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
A S 0.1800 0.3480 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C 0.285 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.95 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.9046 0.3480 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9161 0.3480 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9788 0.3480 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT