Ruanda

01638, 1907 EB, 1907EB, 1912 HJ, 1912HJ, 1930 HF, 1930HF, 1931 RA1, 1931RA1, 1935 JF, 1935JF, 1939 DF, 1939DF, 1940 QJ, 1940QJ, 1944 KC, 1944KC, 1948 EC, 1948EC, 1949 OC, 1949OC, 1952 BK1, 1952BK1, 1972 JH, 1972JH, J07E00B, J12H00J, J30H00F, J31R01A, J35J00F, J39D00F, J40Q00J, J44K00C, J48E00C, J49O00C, J52B01K, J72J00H

All data for this body: [vot]

MPC data
Name (number) Ruanda (1638)
a 2.74614
e 0.19148
i / sin(i) 0.2980 / 0.00520
q 2.22030
Q 3.27197
ω 86.2086
Node 200.8510
m 232.9228
n 0.2166
Epoch 2460800.5
nobs 6040
nopp 46
Years observed 1935-2025
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.748
ep 0.187
sin(ip) 0.021
G 0.150
H 11.630
Mass
D 19.19 0.217
pV 0.123 0.0161
Value
Rotational Period 4.239
Period quality 3
Spectral Class X
Spectral Class Score 5.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7484 0.1872 0.0212 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
16.58 0.890 0.890 Usui 2011PASJ...63.1117U NEATM
16.97 3.390 3.390 Ali-Lagoa 2018A&A...612A..85A NEATM
17.22 3.440 3.440 Ali-Lagoa 2018A&A...612A..85A NEATM
19.09 0.340 0.340 Masiero 2014ApJ...791..121M NEATM
19.59 0.300 0.300 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.116 0.0211 0.0211 Masiero 2011ApJ...741...68M NEATM
0.120 0.0300 0.0300 Masiero 2014ApJ...791..121M NEATM
0.157 0.0630 0.0630 Ali-Lagoa 2018A&A...612A..85A NEATM
0.161 0.0640 0.0640 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
11.63 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.2397 3 Synodic Oey 2009MPBu...36....4O Lightcurve
8.4 1+ 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
M P 0.820000 0.170000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
X Bus VIS Bus 2002Icar..158..146B SPEC