1999 RY18

1999RY18, 1991 SU1, 1991SU1, 53421, J91S01U, J99R18Y

All data for this body: [vot]

MPC data
Name (number) 1999 RY18 (53421)
a 1.92204
e 0.08471
i / sin(i) 19.4688 / 0.33329
q 1.75922
Q 2.08486
ω 333.6198
Node 349.5147
m 247.1472
n 0.3699
Epoch 2460800.5
nobs 1798
nopp 16
Years observed 1991-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent Hungaria (434)
 
ap 1.922
ep 0.091
sin(ip) 0.361
G 0.150
H 15.870
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class B
Spectral Class Score 3.564
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
434 Hungaria 0 Hungaria Novakovic 2019EPSC...13.1671N HCM
434 Hungaria 3 Hungaria -0.5800 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
1.9219 0.0910 0.3611 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
15.87 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
B 0.594 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT