1999 YU4

1999YU4, 45253, J99Y04U

All data for this body: [vot]

MPC data
Name (number) 1999 YU4 (45253)
a 2.75596
e 0.19664
i / sin(i) 7.2145 / 0.12559
q 2.21403
Q 3.29790
ω 358.6159
Node 295.3677
m 13.7114
n 0.2154
Epoch 2460800.5
nobs 2121
nopp 22
Years observed 1998-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent Dora (668)
 
ap 2.757
ep 0.192
sin(ip) 0.138
G 0.150
H 14.400
Mass
D 8.02 0.203
pV 0.070 0.0125
Value
Rotational Period 4.009
Period quality 2
Spectral Class C
Spectral Class Score 4.074
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
668 Dora 0 Dora Novakovic 2019EPSC...13.1671N HCM
668 Dora 512 Dora Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7566 0.1916 0.1382 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.06 1.355 1.355 Masiero 2017AJ....154..168M NEATM
8.07 0.205 0.205 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.068 0.0136 0.0136 Masiero 2011ApJ...741...68M NEATM
0.077 0.0311 0.0311 Masiero 2017AJ....154..168M 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
14.40 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.00949 2 Synodic Pal 2020ApJS..247...26P Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C 0.679 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT