1998 ST97

1998ST97, 1997 LQ12, 1997LQ12, 44400, J97L12Q, J98S97T

All data for this body: [vot]

MPC data
Name (number) 1998 ST97 (44400)
a 2.72756
e 0.10926
i / sin(i) 5.0936 / 0.08878
q 2.42954
Q 3.02557
ω 138.1064
Node 173.5404
m 11.0496
n 0.2188
Epoch 2460800.5
nobs 1455
nopp 25
Years observed 1990-2025
rms 0.80
Best values
[raw, vot]

Value Standard error
Parent Nemesis (128)
 
ap 2.728
ep 0.091
sin(ip) 0.088
G 0.150
H 15.060
Mass
D 4.97 0.214
pV 0.078 0.0144
Value
Rotational Period 10.520
Period quality 2
Spectral Class X
Spectral Class Score 4.500
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
128 Nemesis 504 Nemesis -1.0000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7277 0.0909 0.0878 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.97 0.214 0.214 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.078 0.0144 0.0144 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
15.06 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
10.522 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
10.55 2 Synodic Chang 2015ApJS..219...27C Lightcurve
10.5597 2 Sidereal Durech 2023A&A...675A..24D Model
10.55977 2 Sidereal Durech 2018A&A...617A..57D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
X DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT
X X 0.4166 0.2550 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT