1997 YL4

1997YL4, 1999 EC5, 1999EC5, 28013, J97Y04L, J99E05C

All data for this body: [vot]

MPC data
Name (number) 1997 YL4 (28013)
a 2.58776
e 0.12933
i / sin(i) 3.9170 / 0.06831
q 2.25308
Q 2.92244
ω 304.9771
Node 105.5267
m 204.4125
n 0.2368
Epoch 2460800.5
nobs 2491
nopp 22
Years observed 1997-2025
rms 0.73
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.587
ep 0.117
sin(ip) 0.056
G 0.150
H 14.540
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 6.268
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5867 0.1167 0.0557 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
14.54 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
L 0.42 Bus VIS Carvano 2010A&A...510A..43C PHOT
L S 0.5027 0.5430 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S S 0.7113 0.5430 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT