1998 SM54

1998SM54, 2002 PX59, 2002PX59, 74241, J98S54M, K02P59X

All data for this body: [vot]

MPC data
Name (number) 1998 SM54 (74241)
a 2.52975
e 0.08352
i / sin(i) 12.5701 / 0.21763
q 2.31847
Q 2.74102
ω 5.3892
Node 348.2356
m 226.8134
n 0.2450
Epoch 2460800.5
nobs 1942
nopp 21
Years observed 1998-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.530
ep 0.044
sin(ip) 0.219
G 0.150
H 15.080
Mass
D 3.46 0.170
pV 0.214 0.0569
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 17.954
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5295 0.0439 0.2193 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.46 0.170 0.170 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.214 0.0569 0.0569 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
15.08 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
D S 0.3866 0.4070 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L S 0.0465 0.4070 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L S 0.5082 0.4070 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L S 0.6197 0.4070 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L S 0.8501 0.4070 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.5009 0.4070 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.6682 0.4070 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.8700 0.4070 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9533 0.4070 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT