1997 YJ18

1997YJ18, 2001 QU94, 2001QU94, 33108, J97Y18J, K01Q94U

All data for this body: [vot]

MPC data
Name (number) 1997 YJ18 (33108)
a 2.87762
e 0.03926
i / sin(i) 1.7872 / 0.03119
q 2.76464
Q 2.99059
ω 4.0442
Node 354.0092
m 304.6615
n 0.2019
Epoch 2460800.5
nobs 2560
nopp 23
Years observed 1996-2025
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.877
ep 0.006
sin(ip) 0.041
G 0.150
H 14.160
Mass
D 4.92 0.312
pV 0.152 0.0443
Value
Rotational Period 155.000
Period quality 1+
Spectral Class S
Spectral Class Score 9.451
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8771 0.0061 0.0405 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.92 0.312 0.312 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.152 0.0443 0.0443 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
14.16 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
155.0 1+ Synodic Masiero 2009Icar..204..145M Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
LS 0.41 Bus VIS Carvano 2010A&A...510A..43C PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S S 0.5841 0.6360 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.6577 0.6360 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT