Simonenko

04280, 1969 EM1, 1969EM1, 1978 TQ9, 1978TQ9, 1982 VQ12, 1982VQ12, 1985 PF2, 1985PF2, 1989 UX3, 1989UX3, J69E01M, J78T09Q, J82V12Q, J85P02F, J89U03X

All data for this body: [vot]

MPC data
Name (number) Simonenko (4280)
a 2.37737
e 0.00910
i / sin(i) 4.6290 / 0.08070
q 2.35574
Q 2.39901
ω 352.0562
Node 51.2761
m 238.0380
n 0.2689
Epoch 2460800.5
nobs 5433
nopp 27
Years observed 1952-2025
rms 0.60
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.377
ep 0.039
sin(ip) 0.071
G 0.150
H 13.500
Mass
D 5.94 0.212
pV 0.203 0.0727
Value
Rotational Period 507.580
Period quality 2
Spectral Class S
Spectral Class Score 9.950
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3771 0.0387 0.0714 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.94 0.214 0.214 Masiero 2011ApJ...741...68M NEATM
6.08 1.560 1.560 Nugent 2016AJ....152...63N NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.150 0.1000 0.1000 Nugent 2016AJ....152...63N NEATM
0.263 0.1058 0.1058 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
13.50 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
507.583 2 Synodic Pal 2020ApJS..247...26P Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
A 0.440 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S Bus VIS Bus 2002Icar..158..146B SPEC
S 0.990000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC