1997 JR9

1997JR9, 43987, J97J09R

All data for this body: [vot]

MPC data
Name (number) 1997 JR9 (43987)
a 2.72451
e 0.12670
i / sin(i) 13.2255 / 0.22878
q 2.37932
Q 3.06971
ω 76.1907
Node 132.7092
m 101.9159
n 0.2192
Epoch 2460800.5
nobs 1715
nopp 22
Years observed 1997-2025
rms 0.77
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.725
ep 0.153
sin(ip) 0.219
G 0.150
H 14.730
Mass
D 2.88 0.087
pV 0.337 0.0394
Value
Rotational Period 12.019
Period quality 2
Spectral Class S
Spectral Class Score 7.112
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7253 0.1528 0.2186 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.88 0.087 0.087 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.337 0.0394 0.0394 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
14.73 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
12.01876 2 Sidereal Durech 2018A&A...617A..57D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
LS 0.39 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.8483 0.7380 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V S 0.0858 0.7380 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.3371 0.7380 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT