Amalthea

00113, 1871 EA, 1871EA, 1931 TN3, 1931TN3, 1951 CY, 1951CY, I71E00A, J31T03N, J51C00Y

All data for this body: [vot]

MPC data
Name (number) Amalthea (113)
a 2.37623
e 0.08605
i / sin(i) 5.0423 / 0.08789
q 2.17175
Q 2.58071
ω 80.2381
Node 123.3243
m 6.4169
n 0.2691
Epoch 2460800.5
nobs 4776
nopp 86
Years observed 1871-2025
rms 0.74
Best values
[raw, vot]

Value Standard error
Parent Flora (8)
 
ap 2.376
ep 0.121
sin(ip) 0.078
G 0.150
H 8.540
Mass 1.578e+17 5.061e+16
D 47.48 0.457
pV 0.235 0.0092
Value
Rotational Period 9.900
Period quality 3
Spectral Class Sqw
Spectral Class Score 21.000
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
8 Flora 402 Flora 16.2600 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3760 0.1211 0.0777 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Mass data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
1.4360e+17 7.1573e+16 7.1573e+16 Fienga INPOP19a Ephem
1.7200e+17 Folkner 2014IPNPR.196C...1F Ephem
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
45.54 0.660 0.660 Usui 2011PASJ...63.1117U NEATM
46.14 1.400 1.400 Tedesco 2002AJ....123.1056T STM
47.18 1.919 1.919 Ryan&Woodward 2010AJ....140..933R IRAS-STM
50.14 1.270 1.270 Masiero 2014ApJ...791..121M NEATM
50.26 1.024 1.024 Masiero 2011ApJ...741...68M NEATM
50.56 5.060 5.060 Ali-Lagoa 2018A&A...612A..85A NEATM
55.71 3.202 3.202 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.184 0.0218 0.0218 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.220 0.0200 0.0200 Masiero 2014ApJ...791..121M NEATM
0.223 0.0306 0.0306 Masiero 2011ApJ...741...68M NEATM
0.254 0.0207 0.0207 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.265 0.0170 0.0170 Tedesco 2002AJ....123.1056T STM
0.265 0.0530 0.0530 Ali-Lagoa 2018A&A...612A..85A 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
8.54 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
12.0 Synodic Surdej 1983A&AS...52..203S Lightcurve
9.935 3 Synodic Harris 1983Icar...54...59H Lightcurve
9.93768 2 Sidereal Tungalag 2002KFNT...18..508T Model
9.93936 2 Sidereal Durech 2020A&A...643A..59D Model
9.95 3 Synodic Stephens 2014MPBu...41..226S Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
A S 0.710000 0.280000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
S Bus VIS Bus 2002Icar..158..146B SPEC
S 0.980000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
S 1.000 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
So Howell VISNIR Howell 1994JGR....9910847H PHOT
Sqw Bus-DeMeo VISNIR Hasegawa 2024AJ....167..224H SPEC
Sr Bus-DeMeo VISNIR Hasegawa 2017PASJ...69...99H SPEC
X C DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT