1998 YA9

1998YA9, 2000 AB198, 2000AB198, 44532, J98Y09A, K00AJ8B

All data for this body: [vot]

MPC data
Name (number) 1998 YA9 (44532)
a 2.96807
e 0.06456
i / sin(i) 9.6655 / 0.16790
q 2.77645
Q 3.15969
ω 56.3763
Node 237.0259
m 185.4796
n 0.1928
Epoch 2460800.5
nobs 1815
nopp 21
Years observed 1998-2025
rms 0.79
Best values
[raw, vot]

Value Standard error
Parent Eos (221)
 
ap 2.967
ep 0.069
sin(ip) 0.183
G 0.150
H 14.210
Mass
D 6.36 0.208
pV 0.120 0.0235
Value
Rotational Period 2.740
Period quality 2
Spectral Class X
Spectral Class Score 6.570
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
221 Eos 606 Eos -0.6700 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.9670 0.0686 0.1833 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.36 0.208 0.208 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.120 0.0235 0.0235 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
14.21 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
2.74865 2 Sidereal Durech 2023A&A...675A..24D Model
2.749 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
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 DeMeo 2013Icar..226..723D PHOT
X X 0.7616 0.7616 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
XL 0.34 Bus VIS Carvano 2010A&A...510A..43C PHOT