1989 CJ8

1989CJ8, 12256, J89C08J

All data for this body: [vot]

MPC data
Name (number) 1989 CJ8 (12256)
a 2.46258
e 0.20058
i / sin(i) 8.6513 / 0.15042
q 1.96864
Q 2.95651
ω 66.6244
Node 144.8787
m 82.7846
n 0.2550
Epoch 2460800.5
nobs 5290
nopp 24
Years observed 1989-2025
rms 0.58
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.464
ep 0.230
sin(ip) 0.145
G 0.150
H 13.880
Mass
D 3.85 0.556
pV 0.569 0.2088
Value
Rotational Period 7.933
Period quality 2
Spectral Class X
Spectral Class Score 6.431
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4636 0.2304 0.1446 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.85 0.556 0.556 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.569 0.2088 0.2088 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
13.88 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
7.9318 2 Sidereal Durech 2023A&A...675A..24D Model
7.93281 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
B X 0.1064 0.1850 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C X 0.0457 0.1850 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
Kl Kl None None Movis NIR Popescu 2018A&A...617A..12P PHOT
X 0.27 Bus VIS Carvano 2010A&A...510A..43C PHOT
X C DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT
X X 0.6485 0.1850 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT