1998 SA155

1998SA155, 1997 HW17, 1997HW17, A1322, J97H17W, J98SF5A

All data for this body: [vot]

MPC data
Name (number) 1998 SA155 (101322)
a 2.66561
e 0.22514
i / sin(i) 3.1028 / 0.05413
q 2.06547
Q 3.26576
ω 127.9095
Node 214.0447
m 60.7904
n 0.2265
Epoch 2460800.5
nobs 1295
nopp 20
Years observed 1997-2025
rms 0.78
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.664
ep 0.188
sin(ip) 0.069
G 0.150
H 15.620
Mass
D 4.08 0.083
pV 0.061 0.0147
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 5.994
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
2782 Leonidas 0 Leonidas Novakovic 2019EPSC...13.1671N HCM
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6640 0.1877 0.0686 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.08 0.083 0.083 Masiero 2011ApJ...741...68M NEATM
4.64 1.712 1.712 Masiero 2011ApJ...741...68M NEATM
4.67 1.150 1.150 Nugent 2016AJ....152...63N NEATM
5.07 1.340 1.340 Masiero 2021PSJ.....2..162M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.040 0.0300 0.0300 Nugent 2016AJ....152...63N NEATM
0.044 0.0190 0.0320 Masiero 2021PSJ.....2..162M NEATM
0.068 0.0753 0.0753 Masiero 2011ApJ...741...68M NEATM
0.088 0.0234 0.0234 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
15.62 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
C 0.999 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT