Algeria

01213, 1931 XD, 1931XD, J31X00D

All data for this body: [vot]

MPC data
Name (number) Algeria (1213)
a 3.13476
e 0.12845
i / sin(i) 13.1109 / 0.22684
q 2.73210
Q 3.53742
ω 110.8980
Node 271.2487
m 337.9839
n 0.1776
Epoch 2460800.5
nobs 5541
nopp 36
Years observed 1931-2025
rms 0.58
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.132
ep 0.101
sin(ip) 0.249
G 0.150
H 11.190
Mass
D 30.26 0.161
pV 0.056 0.0035
Value
Rotational Period 16.372
Period quality 3
Spectral Class B
Spectral Class Score 13.988
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1321 0.1011 0.2494 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
26.54 6.780 6.780 Nugent 2016AJ....152...63N NEATM
29.17 0.250 0.250 Masiero 2014ApJ...791..121M NEATM
30.19 0.239 0.239 Masiero 2011ApJ...741...68M NEATM
30.60 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
31.78 1.365 1.365 Ryan&Woodward 2010AJ....140..933R IRAS-STM
33.17 3.320 3.320 Ali-Lagoa 2018A&A...612A..85A NEATM
33.20 4.700 4.700 Tedesco 2002AJ....123.1056T STM
33.51 0.780 0.780 Masiero 2012ApJ...759L...8M NEATM
34.26 3.430 3.430 Ali-Lagoa 2018A&A...612A..85A NEATM
34.46 0.670 0.670 Usui 2011PASJ...63.1117U NEATM
46.11 2.624 2.624 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.040 0.0049 0.0049 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.057 0.0100 0.0100 Masiero 2012ApJ...759L...8M NEATM
0.062 0.0120 0.0120 Ali-Lagoa 2018A&A...612A..85A NEATM
0.066 0.0130 0.0130 Ali-Lagoa 2018A&A...612A..85A NEATM
0.077 0.0270 0.0270 Tedesco 2002AJ....123.1056T STM
0.080 0.0600 0.0600 Nugent 2016AJ....152...63N NEATM
0.084 0.0203 0.0203 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.093 0.0106 0.0106 Masiero 2011ApJ...741...68M NEATM
0.110 0.0200 0.0200 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
11.19 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
16.364 2 Sidereal Durech 2023A&A...675A..24D Model
16.3642 2 Sidereal Durech 2020A&A...643A..59D Model
16.37 2 Synodic Behrend LCDB Lightcurve
16.3722 3 Synodic Behrend LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B Bus VIS Lazzaro 2004Icar..172..179L SPEC
B Tholen VIS Lazzaro 2004Icar..172..179L SPEC
B B 0.6647 0.6647 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C P 0.850000 0.130000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC