Richardstarr

11455, 1981 EN4, 1981EN4, 1987 KR1, 1987KR1, J81E04N, J87K01R

All data for this body: [vot]

MPC data
Name (number) Richardstarr (11455)
a 3.06345
e 0.04251
i / sin(i) 9.8800 / 0.17159
q 2.93323
Q 3.19368
ω 207.5106
Node 251.5988
m 161.6307
n 0.1838
Epoch 2460800.5
nobs 4373
nopp 26
Years observed 1981-2025
rms 0.59
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.061
ep 0.057
sin(ip) 0.191
G 0.150
H 13.270
Mass
D 5.13 0.125
pV 0.558 0.1106
Value
Rotational Period 17.410
Period quality 2
Spectral Class S
Spectral Class Score 1.566
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0614 0.0565 0.1907 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.13 0.125 0.125 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.558 0.1106 0.1106 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
13.27 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
17.414 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 0.261 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT