Afra

01187, 1929 XC, 1929XC, J29X00C

All data for this body: [vot]

MPC data
Name (number) Afra (1187)
a 2.63857
e 0.22367
i / sin(i) 10.6978 / 0.18563
q 2.04841
Q 3.22873
ω 74.7567
Node 327.1122
m 106.0206
n 0.2300
Epoch 2460800.5
nobs 7569
nopp 38
Years observed 1929-2025
rms 0.51
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.640
ep 0.188
sin(ip) 0.206
G 0.150
H 11.620
Mass
D 32.89 0.128
pV 0.049 0.0024
Value
Rotational Period 14.070
Period quality 3
Spectral Class X
Spectral Class Score 5.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6403 0.1884 0.2061 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
24.36 4.140 4.140 Nugent 2016AJ....152...63N NEATM
28.95 8.519 8.519 Masiero 2017AJ....154..168M NEATM
29.50 1.334 1.334 Ryan&Woodward 2010AJ....140..933R IRAS-STM
30.90 8.070 8.070 Masiero 2021PSJ.....2..162M NEATM
30.96 7.950 7.950 Masiero 2021PSJ.....2..162M NEATM
31.83 3.900 3.900 Tedesco 2002AJ....123.1056T STM
31.96 0.330 0.330 Usui 2011PASJ...63.1117U NEATM
32.15 12.850 12.850 Masiero 2012ApJ...759L...8M NEATM
32.35 0.300 0.300 Masiero 2014ApJ...791..121M NEATM
33.31 0.159 0.159 Masiero 2011ApJ...741...68M NEATM
33.91 3.390 3.390 Ali-Lagoa 2018A&A...612A..85A NEATM
34.63 2.607 2.607 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
35.38 3.540 3.540 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.039 0.0080 0.0080 Ali-Lagoa 2018A&A...612A..85A NEATM
0.042 0.0080 0.0080 Ali-Lagoa 2018A&A...612A..85A NEATM
0.043 0.0230 0.0230 Masiero 2012ApJ...759L...8M NEATM
0.045 0.0069 0.0069 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.046 0.0170 0.0270 Masiero 2021PSJ.....2..162M NEATM
0.047 0.0170 0.0270 Masiero 2021PSJ.....2..162M NEATM
0.048 0.0041 0.0041 Masiero 2011ApJ...741...68M NEATM
0.050 0.0100 0.0100 Masiero 2014ApJ...791..121M NEATM
0.053 0.0160 0.0160 Tedesco 2002AJ....123.1056T STM
0.060 0.0327 0.0327 Masiero 2017AJ....154..168M NEATM
0.061 0.0055 0.0055 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.070 0.0200 0.0200 Nugent 2016AJ....152...63N 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
11.62 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
14.0699 2 Sidereal Durech 2023A&A...675A..24D Model
14.06993 2 Sidereal Durech 2016A&A...587A..48D Model
14.0701 3 Synodic Behrend LCDB Lightcurve
14.09 3- Synodic Menke 2008MPBu...35..155M Lightcurve
14.645 3- Synodic Clark 2019MPBu...46..346C Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
P 0.990000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
X Bus VIS Bus 2002Icar..158..146B SPEC