1999 RP21

1999RP21, 74614, J99R21P

All data for this body: [vot]

MPC data
Name (number) 1999 RP21 (74614)
a 2.39251
e 0.16951
i / sin(i) 2.2737 / 0.03967
q 1.98696
Q 2.79807
ω 310.8085
Node 111.3033
m 284.7733
n 0.2663
Epoch 2460800.5
nobs 1025
nopp 19
Years observed 1997-2025
rms 0.81
Best values
[raw, vot]

Value Standard error
Parent Massalia (20)
 
ap 2.393
ep 0.163
sin(ip) 0.026
G 0.150
H 16.330
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 5.622
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
20 Massalia 0 Massalia Novakovic 2019EPSC...13.1671N HCM
20 Massalia 404 Massalia -0.4000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3925 0.1631 0.0260 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
16.33 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
S 0.937 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT