1998 OP8

1998OP8, 1999 XK217, 1999XK217, 48918, J98O08P, J99XL7K

All data for this body: [vot]

MPC data
Name (number) 1998 OP8 (48918)
a 2.26311
e 0.08897
i / sin(i) 4.3953 / 0.07664
q 2.06175
Q 2.46447
ω 201.7603
Node 286.7463
m 143.5645
n 0.2895
Epoch 2460800.5
nobs 2759
nopp 20
Years observed 1997-2025
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.263
ep 0.136
sin(ip) 0.085
G 0.150
H 14.950
Mass
D 2.67 0.126
pV 0.326 0.0433
Value
Rotational Period 6.000
Period quality 2
Spectral Class S
Spectral Class Score 17.284
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2627 0.1360 0.0853 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.67 0.126 0.126 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.326 0.0433 0.0433 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
14.95 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
6.1 2 Synodic Stephens 2020MPBu...47..125S Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.119 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S 0.86 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.3216 0.7020 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9007 0.7020 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9193 0.7020 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT