1990 UD3

1990UD3, 11888, 1981 WB, 1981WB, J81W00B, J90U03D

All data for this body: [vot]

MPC data
Name (number) 1990 UD3 (11888)
a 2.74854
e 0.29124
i / sin(i) 7.8624 / 0.13679
q 1.94804
Q 3.54903
ω 142.1935
Node 227.7883
m 222.5344
n 0.2163
Epoch 2460800.5
nobs 2528
nopp 26
Years observed 1981-2025
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent Chloris (410)
 
ap 2.752
ep 0.247
sin(ip) 0.150
G 0.150
H 14.330
Mass
D 7.80 0.305
pV 0.076 0.0132
Value
Rotational Period 186.510
Period quality 2
Spectral Class X
Spectral Class Score 4.776
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
410 Chloris 509 Chloris 0.5500 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7515 0.2469 0.1499 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.16 1.470 1.470 Masiero 2020PSJ.....1....5M NEATM
7.87 0.314 0.314 Masiero 2011ApJ...741...68M NEATM
8.57 2.890 2.890 Masiero 2020PSJ.....1....5M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.050 0.0400 0.0400 Masiero 2020PSJ.....1....5M NEATM
0.079 0.0147 0.0147 Masiero 2011ApJ...741...68M NEATM
0.082 0.0440 0.0440 Masiero 2020PSJ.....1....5M 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
14.33 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
186.514 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 C 0.0225 0.0225 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X 0.796 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT