1999 CT21

1999CT21, 35690, J99C21T

All data for this body: [vot]

MPC data
Name (number) 1999 CT21 (35690)
a 2.54642
e 0.13166
i / sin(i) 7.7086 / 0.13414
q 2.21115
Q 2.88169
ω 130.2358
Node 107.0003
m 75.1304
n 0.2426
Epoch 2460800.5
nobs 2918
nopp 24
Years observed 1992-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.545
ep 0.163
sin(ip) 0.114
G 0.150
H 14.340
Mass
D 3.85 0.684
pV 0.300 0.1344
Value
Rotational Period 9.000
Period quality 2
Spectral Class S
Spectral Class Score 32.432
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5449 0.1626 0.1136 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.85 0.684 0.684 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.300 0.1344 0.1344 Masiero 2011ApJ...741...68M 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
14.34 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
9.028 2 Synodic Galad 2010A&A...514A..55G Lightcurve
9.034 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
9.06 2 Synodic Pietrukowicz 2006MPBu...33...80P 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 0.6533 0.5910 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L S 0.5917 0.5910 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L S 0.7171 0.5910 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.83 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.4942 0.5910 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.6645 0.5910 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.7718 0.5910 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9062 0.5910 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9791 0.5910 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9795 0.5910 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V S 0.0868 0.5910 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V S 0.2221 0.5910 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT