1998 SY54

1998SY54, 2000 EJ35, 2000EJ35, 74242, J98S54Y, K00E35J

All data for this body: [vot]

MPC data
Name (number) 1998 SY54 (74242)
a 2.59822
e 0.22363
i / sin(i) 9.6230 / 0.16717
q 2.01717
Q 3.17927
ω 20.0458
Node 6.5460
m 108.9790
n 0.2353
Epoch 2460800.5
nobs 1790
nopp 19
Years observed 1992-2025
rms 0.78
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.600
ep 0.193
sin(ip) 0.163
G 0.150
H 15.060
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 12.841
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5999 0.1933 0.1626 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
15.06 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
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.45 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.7377 0.8390 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9192 0.8390 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT