1991 UH1

1991UH1, 1999 VH179, 1999VH179, 42494, J91U01H, J99VH9H

All data for this body: [vot]

MPC data
Name (number) 1991 UH1 (42494)
a 2.57841
e 0.14079
i / sin(i) 8.2496 / 0.14349
q 2.21539
Q 2.94143
ω 139.3105
Node 78.9518
m 237.3844
n 0.2381
Epoch 2460800.5
nobs 2097
nopp 21
Years observed 1991-2025
rms 0.77
Best values
[raw, vot]

Value Standard error
Parent Rafita (1644)
 
ap 2.576
ep 0.170
sin(ip) 0.126
G 0.150
H 14.520
Mass
D 3.66 0.125
pV 0.251 0.0411
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 12.871
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
1644 Rafita 518 Rafita 0.4500 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5758 0.1698 0.1258 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.66 0.125 0.125 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.251 0.0411 0.0411 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
14.52 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
K S 0.2579 0.5320 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.709 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S 0.71 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.8661 0.5320 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT