1999 RJ221

1999RJ221, 1998 DV14, 1998DV14, 1999 TT230, 1999TT230, 42911, J98D14V, J99RM1J, J99TN0T

All data for this body: [vot]

MPC data
Name (number) 1999 RJ221 (42911)
a 2.18264
e 0.14369
i / sin(i) 4.7867 / 0.08345
q 1.86902
Q 2.49626
ω 176.3156
Node 103.8289
m 43.5545
n 0.3057
Epoch 2460800.5
nobs 1779
nopp 22
Years observed 1992-2025
rms 0.73
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.182
ep 0.107
sin(ip) 0.072
G 0.150
H 15.500
Mass
D 2.23 0.183
pV 0.186 0.0167
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 8.580
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.1819 0.1067 0.0720 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.23 0.183 0.183 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.186 0.0167 0.0167 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
15.50 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
K DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.54 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.9167 0.9167 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT