1999 US26

1999US26, 36232, J99U26S

All data for this body: [vot]

MPC data
Name (number) 1999 US26 (36232)
a 3.12863
e 0.12768
i / sin(i) 4.0090 / 0.06991
q 2.72915
Q 3.52811
ω 16.1988
Node 273.5603
m 304.3397
n 0.1781
Epoch 2460800.5
nobs 2272
nopp 24
Years observed 1995-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent Hygiea (10)
 
ap 3.134
ep 0.121
sin(ip) 0.089
G 0.150
H 13.800
Mass
D 8.53 0.124
pV 0.088 0.0113
Value
Rotational Period 22.597
Period quality 2
Spectral Class C
Spectral Class Score 6.272
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
10 Hygiea 0 Hygiea Novakovic 2019EPSC...13.1671N HCM
10 Hygiea 601 Hygiea Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1340 0.1211 0.0893 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
8.53 0.124 0.124 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.088 0.0113 0.0113 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
13.80 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
22.5974 2 Sidereal Durech 2018A&A...617A..57D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.84 Bus VIS Carvano 2010A&A...510A..43C PHOT
C C 0.7654 0.7654 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT