Alkeste

00124, 1872 QA, 1872QA, I72Q00A

All data for this body: [vot]

MPC data
Name (number) Alkeste (124)
a 2.62993
e 0.07839
i / sin(i) 2.9634 / 0.05170
q 2.42377
Q 2.83609
ω 61.6561
Node 187.9089
m 2.8991
n 0.2311
Epoch 2460800.5
nobs 4633
nopp 78
Years observed 1872-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.630
ep 0.109
sin(ip) 0.057
G 0.150
H 8.070
Mass 8.579e+17 3.658e+17
D 81.25 0.679
pV 0.166 0.0053
Value
Rotational Period 9.900
Period quality 3
Spectral Class S
Spectral Class Score 62.510
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6299 0.1092 0.0565 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Mass data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
1.1189e+18 5.1725e+17 5.1725e+17 Fienga INPOP19a Ephem
5.9700e+17 Folkner 2014IPNPR.196C...1F Ephem
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
75.02 3.370 3.370 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
76.36 1.700 1.700 Tedesco 2002AJ....123.1056T STM
77.88 7.790 7.790 Ali-Lagoa 2018A&A...612A..85A NEATM
78.02 2.376 2.376 Ryan&Woodward 2010AJ....140..933R IRAS-STM
81.21 8.120 8.120 Ali-Lagoa 2018A&A...612A..85A NEATM
81.39 0.930 0.930 Usui 2011PASJ...63.1117U NEATM
88.65 1.650 1.650 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.128 0.0140 0.0140 Masiero 2012ApJ...759L...8M NEATM
0.166 0.0103 0.0103 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.173 0.0080 0.0080 Tedesco 2002AJ....123.1056T STM
0.174 0.0350 0.0350 Ali-Lagoa 2018A&A...612A..85A NEATM
0.180 0.0157 0.0157 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.189 0.0380 0.0380 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
8.07 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
9.9 3 Synodic Pilcher 2016MPBu...43..296P Lightcurve
9.905 3 Synodic Pilcher 2016MPBu...43..296P Lightcurve
9.906 3 Synodic Pilcher 2016MPBu...43..296P Lightcurve
9.907 3 Synodic Shevchenko 2002Icar..155..365S Lightcurve
9.90702 2 Sidereal Durech 2020A&A...643A..59D Model
9.908 2+ Synodic Behrend LCDB Lightcurve
9.908 3- Synodic Pilcher 2016MPBu...43..296P Lightcurve
9.921 3 Synodic Harris 1983Icar...54...59H Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S Bus-DeMeo VISNIR Hasegawa 2017PASJ...69...99H SPEC
S Bus-DeMeo VISNIR Hasegawa 2024AJ....167..224H SPEC
S Bus VIS Bus 2002Icar..158..146B SPEC
S Tholen VIS Clark 1995Icar..113..387C PHOT
S 0.930000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
S 1.000000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC