Mijacobsen

18957, 1980 TH4, 1980TH4, 1992 EA21, 1992EA21, 1999 GN28, 1999GN28, 2000 QE128, 2000QE128, J80T04H, J92E21A, J99G28N, K00QC8E

All data for this body: [vot]

MPC data
Name (number) Mijacobsen (18957)
a 2.21995
e 0.15554
i / sin(i) 5.7770 / 0.10066
q 1.87465
Q 2.56524
ω 301.3975
Node 31.0300
m 197.9599
n 0.2980
Epoch 2460800.5
nobs 2584
nopp 20
Years observed 1980-2025
rms 0.74
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.220
ep 0.095
sin(ip) 0.093
G 0.150
H 15.080
Mass
D 2.55 0.430
pV 0.327 0.1090
Value
Rotational Period 3.780
Period quality 2
Spectral Class S
Spectral Class Score 6.217
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2205 0.0954 0.0927 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.55 0.430 0.430 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.327 0.1090 0.1090 Masiero 2012ApJ...759L...8M 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
15.08 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.789 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
LS 0.38 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.7029 0.7029 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT