1999 RQ121

1999RQ121, 1998 FF105, 1998FF105, 38321, J98FA5F, J99RC1Q

All data for this body: [vot]

MPC data
Name (number) 1999 RQ121 (38321)
a 2.53390
e 0.06668
i / sin(i) 8.6966 / 0.15120
q 2.36492
Q 2.70287
ω 313.0459
Node 329.5336
m 175.2682
n 0.2444
Epoch 2460800.5
nobs 1778
nopp 21
Years observed 1998-2025
rms 0.78
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.533
ep 0.061
sin(ip) 0.161
G 0.150
H 14.890
Mass
D 3.72 0.174
pV 0.202 0.0301
Value
Rotational Period
Period quality None
Spectral Class Ds
Spectral Class Score 1.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5328 0.0606 0.1605 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.72 0.174 0.174 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.202 0.0301 0.0301 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
14.89 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
Ds Ds None None Movis NIR Popescu 2018A&A...617A..12P PHOT