Ruanda

01638, 1907EB, 1912HJ, 1930HF, 1931RA1, 1935JF, 1939DF, 1940QJ, 1944KC, 1948EC, 1949OC, 1952BK1, 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)
Packed designation 01638
a 2.74909
e 0.18754
i / sin(i) 0.2931 / 0.00511
q 2.23353
Q 3.26464
ω 86.6429
Node 200.5225
m 333.5197
n 0.2162
Epoch 2459600.5
nobs 3874
nopp 43
Years observed 1935-2021
rms 0.55
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.748
ep 0.187
sin(ip) 0.021
Value Standard error
G 0.150
H 11.690
Mass
D 19.19 0.217
pV 0.123 0.0161
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-Jan-2022
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-2022-01-18 MPC-2022-01-18 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.69 MPC-2022-01-18 MPC-2022-01-18 Phot