Cyrus

07209, 1958 DJ1, 1958DJ1, 1989 QB, 1989QB, 3523 P-L, 3523P-L, J58D01J, J89Q00B, PLS3523

All data for this body: [vot]

MPC data
Name (number) Cyrus (7209)
a 2.59245
e 0.04772
i / sin(i) 8.8522 / 0.15389
q 2.46874
Q 2.71616
ω 49.3232
Node 329.8556
m 163.2352
n 0.2361
Epoch 2460800.5
nobs 4894
nopp 25
Years observed 1958-2025
rms 0.64
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.593
ep 0.018
sin(ip) 0.163
G 0.150
H 13.190
Mass
D 6.42 0.163
pV 0.297 0.0396
Value
Rotational Period 5.380
Period quality 2
Spectral Class S
Spectral Class Score 2.862
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5929 0.0180 0.1633 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.42 0.163 0.163 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.297 0.0396 0.0396 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
13.19 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
5.381 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 0.477 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT