Johnnapier

05558, 1989 WL2, 1989WL2, J89W02L

All data for this body: [vot]

MPC data
Name (number) Johnnapier (5558)
a 1.93536
e 0.11278
i / sin(i) 23.3830 / 0.39688
q 1.71710
Q 2.15362
ω 264.8147
Node 138.8418
m 77.5260
n 0.3661
Epoch 2460800.5
nobs 4453
nopp 23
Years observed 1978-2025
rms 0.59
Best values
[raw, vot]

Value Standard error
Parent Hungaria (434)
 
ap 1.935
ep 0.076
sin(ip) 0.353
G 0.150
H 14.370
Mass
D 2.33 0.166
pV 0.819 0.0907
Value
Rotational Period 73.000
Period quality 2
Spectral Class X
Spectral Class Score 6.409
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
434 Hungaria 0 Hungaria Novakovic 2019EPSC...13.1671N HCM
434 Hungaria 3 Hungaria -0.4900 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
1.9354 0.0756 0.3531 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.33 0.166 0.166 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.819 0.0907 0.0907 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
14.37 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
73.9 2 Synodic Warner 2009MPBu...36..109W Lightcurve
73.91 2 Synodic Behrend LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
X DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
X 0.21 Bus VIS Carvano 2010A&A...510A..43C PHOT
X X 0.6649 0.6649 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT