Africa

01193, 1931 HB, 1931HB, J31H00B

All data for this body: [vot]

MPC data
Name (number) Africa (1193)
a 2.64560
e 0.12353
i / sin(i) 14.1431 / 0.24435
q 2.31880
Q 2.97240
ω 186.0948
Node 49.4566
m 287.5509
n 0.2290
Epoch 2460800.5
nobs 6265
nopp 34
Years observed 1931-2025
rms 0.59
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.647
ep 0.155
sin(ip) 0.227
G 0.150
H 11.820
Mass
D 12.43 0.082
pV 0.226 0.0269
Value
Rotational Period 158.000
Period quality 2+
Spectral Class S
Spectral Class Score 18.854
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
15 Eunomia 0 Eunomia Novakovic 2019EPSC...13.1671N HCM
15 Eunomia 502 Eunomia 0.0700 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6469 0.1551 0.2272 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.22 0.100 0.100 Masiero 2014ApJ...791..121M NEATM
12.82 0.146 0.146 Masiero 2011ApJ...741...68M NEATM
14.16 0.970 0.970 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.184 0.0530 0.0530 Masiero 2012ApJ...759L...8M NEATM
0.227 0.0502 0.0502 Masiero 2011ApJ...741...68M NEATM
0.250 0.0400 0.0400 Masiero 2014ApJ...791..121M 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
11.82 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
157.663 2 Synodic McNeill 2019ApJS..245...29M Lightcurve
157.894 2 Sidereal Durech 2020A&A...643A..59D Model
158.7 2+ Synodic Benishek 2018MPBu...45...82B Lightcurve
79.2739 2 Synodic Pal 2020ApJS..247...26P Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S Tholen VISNIR Nathues 2010Icar..208..252N SPEC+PHOT
S 0.532 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.9436 0.9436 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT