SLAS

1999 XS1, 1999XS1, 24173, J99X01S

All data for this body: [vot]

MPC data
Name (number) SLAS (24173)
a 2.78955
e 0.12906
i / sin(i) 8.2694 / 0.14383
q 2.42954
Q 3.14955
ω 133.2288
Node 310.9736
m 157.4213
n 0.2115
Epoch 2460800.5
nobs 1748
nopp 21
Years observed 1954-2025
rms 0.73
Best values
[raw, vot]

Value Standard error
Parent Gefion (1272)
 
ap 2.788
ep 0.131
sin(ip) 0.159
G 0.150
H 14.600
Mass
D 3.97 0.445
pV 0.214 0.0410
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 5.009
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
1272 Gefion 0 Gefion Novakovic 2019EPSC...13.1671N HCM
1272 Gefion 516 Gefion 0.0700 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7880 0.1310 0.1592 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.97 0.445 0.445 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.214 0.0410 0.0410 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
14.60 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 S None None Movis NIR Popescu 2018A&A...617A..12P PHOT
S S 0.6681 0.6681 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT