1991 RX21

1991RX21, 1999 BK23, 1999BK23, 26117, J91R21X, J99B23K

All data for this body: [vot]

MPC data
Name (number) 1991 RX21 (26117)
a 3.20546
e 0.11582
i / sin(i) 14.4224 / 0.24907
q 2.83419
Q 3.57673
ω 271.8939
Node 157.6919
m 239.6646
n 0.1717
Epoch 2460800.5
nobs 3158
nopp 23
Years observed 1991-2025
rms 0.71
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.197
ep 0.109
sin(ip) 0.243
G 0.150
H 13.030
Mass
D 11.24 0.203
pV 0.116 0.0417
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 5.163
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1971 0.1086 0.2431 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.24 0.203 0.203 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.116 0.0417 0.0417 Masiero 2011ApJ...741...68M 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
13.03 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C C 0.5272 0.2830 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
CX 0.52 Bus VIS Carvano 2010A&A...510A..43C PHOT
S C 0.0445 0.2830 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT