O'Rourke

09524, 1975 NU, 1975NU, 1981 EJ5, 1981EJ5, J75N00U, J81E05J

All data for this body: [vot]

MPC data
Name (number) O'Rourke (9524)
a 2.19804
e 0.22527
i / sin(i) 4.9398 / 0.08611
q 1.70289
Q 2.69320
ω 9.9404
Node 286.9385
m 281.0492
n 0.3024
Epoch 2460200.5
nobs 2405
nopp 22
Years observed 1975-2023
rms 0.57
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.198
ep 0.179
sin(ip) 0.108
Value Standard error
G 0.150
H 14.870
Mass
D 2.92 0.662
pV 0.273 0.0867
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.1980 0.1795 0.1078 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.92 0.662 0.662 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.273 0.0867 0.0867 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
14.87 MPC-2023-12-04 MPC-2023-12-04 Phot