1999 YS12

1999YS12, 45254, J99Y12S

All data for this body: [vot]

MPC data
Name (number) 1999 YS12 (45254)
a 3.07768
e 0.12315
i / sin(i) 2.9503 / 0.05147
q 2.69868
Q 3.45669
ω 111.3248
Node 99.4826
m 164.9592
n 0.1825
Epoch 2460800.5
nobs 2196
nopp 24
Years observed 1992-2025
rms 0.78
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.082
ep 0.154
sin(ip) 0.031
G 0.150
H 13.860
Mass
D 9.26 0.233
pV 0.075 0.0169
Value
Rotational Period
Period quality None
Spectral Class X
Spectral Class Score 4.758
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 0 Themis Novakovic 2019EPSC...13.1671N HCM
24 Themis 602 Themis -0.4200 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0821 0.1537 0.0309 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
9.26 0.233 0.233 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.075 0.0169 0.0169 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
13.86 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
Bk Bk None None Movis NIR Popescu 2018A&A...617A..12P PHOT
X 0.793 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT