1999 RY154

1999RY154, 1997 EJ57, 1997EJ57, 38361, J97E57J, J99RF4Y

All data for this body: [vot]

MPC data
Name (number) 1999 RY154 (38361)
a 3.09613
e 0.04455
i / sin(i) 10.0120 / 0.17386
q 2.95818
Q 3.23408
ω 324.2394
Node 177.7811
m 99.6047
n 0.1809
Epoch 2460800.5
nobs 2201
nopp 25
Years observed 1991-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent Eos (221)
 
ap 3.095
ep 0.075
sin(ip) 0.171
G 0.150
H 14.150
Mass
D 5.41 0.127
pV 0.166 0.0304
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 10.274
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
221 Eos 0 Eos Novakovic 2019EPSC...13.1671N HCM
221 Eos 606 Eos 0.8000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0950 0.0746 0.1713 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.41 0.127 0.127 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.166 0.0304 0.0304 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
14.15 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 DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.22 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.2869 0.3790 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.4187 0.3790 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.6000 0.3790 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT