1999 UD38

1999UD38, 1990 WP, 1990WP, I9481, J90W00P, J99U38D

All data for this body: [vot]

MPC data
Name (number) 1999 UD38 (189481)
a 2.78755
e 0.26789
i / sin(i) 8.2896 / 0.14418
q 2.04079
Q 3.53430
ω 229.0804
Node 196.3948
m 140.5934
n 0.2118
Epoch 2460800.5
nobs 1286
nopp 16
Years observed 1990-2025
rms 0.65
Best values
[raw, vot]

Value Standard error
Parent Chloris (410)
 
ap 2.786
ep 0.251
sin(ip) 0.149
G 0.150
H 16.180
Mass
D 3.11 0.247
pV 0.073 0.0229
Value
Rotational Period 81.530
Period quality 2
Spectral Class C
Spectral Class Score 1.528
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
410 Chloris 0 Chloris Novakovic 2019EPSC...13.1671N HCM
410 Chloris 509 Chloris 0.5400 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7857 0.2506 0.1494 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.11 0.247 0.247 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.073 0.0229 0.0229 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
16.18 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
81.5306 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 0.2546 0.2100 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
CX 0.05 Bus VIS Carvano 2010A&A...510A..43C PHOT
X C 0.1208 0.2100 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT