1990 UH1

1990UH1, 16506, J90U01H

All data for this body: [vot]

MPC data
Name (number) 1990 UH1 (16506)
a 2.36361
e 0.24366
i / sin(i) 9.5610 / 0.16610
q 1.78770
Q 2.93951
ω 307.1787
Node 91.0233
m 181.1196
n 0.2712
Epoch 2460800.5
nobs 2999
nopp 24
Years observed 1955-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.363
ep 0.221
sin(ip) 0.150
G 0.150
H 14.250
Mass
D 8.10 0.056
pV 0.056 0.0104
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 3.522
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3634 0.2210 0.1505 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.16 1.410 1.410 Masiero 2021PSJ.....2..162M NEATM
7.85 1.800 1.800 Nugent 2016AJ....152...63N NEATM
8.11 0.056 0.056 Masiero 2011ApJ...741...68M NEATM
8.18 2.630 2.630 Masiero 2017AJ....154..168M NEATM
8.82 2.540 2.540 Masiero 2021PSJ.....2..162M NEATM
9.81 2.750 2.750 Masiero 2020PSJ.....1....5M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.042 0.0400 0.0400 Masiero 2020PSJ.....1....5M NEATM
0.049 0.0190 0.0320 Masiero 2021PSJ.....2..162M NEATM
0.050 0.0200 0.0200 Nugent 2016AJ....152...63N NEATM
0.060 0.0509 0.0509 Masiero 2017AJ....154..168M NEATM
0.062 0.0161 0.0161 Masiero 2011ApJ...741...68M NEATM
0.095 0.0400 0.0690 Masiero 2021PSJ.....2..162M 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
14.25 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
C 0.587 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT