Johnmahoney

1991 PC23, 1991PC23, 1998 HF22, 1998HF22, 20324, J91P23C, J98H22F

All data for this body: [vot]

MPC data
Name (number) Johnmahoney (20324)
a 2.52597
e 0.04114
i / sin(i) 0.6500 / 0.01134
q 2.42206
Q 2.62989
ω 97.5719
Node 30.3031
m 331.4158
n 0.2455
Epoch 2460800.5
nobs 1423
nopp 24
Years observed 1979-2025
rms 0.85
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.524
ep 0.083
sin(ip) 0.015
G 0.150
H 15.680
Mass
D 2.27 0.427
pV 0.237 0.0671
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 5.814
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5239 0.0827 0.0153 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.27 0.427 0.427 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.237 0.0671 0.0671 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
15.68 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 0.969 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT