Simpson

04788, 1976 YJ1, 1976YJ1, 1979 RN1, 1979RN1, 1984 AS, 1984AS, 1986 TL1, 1986TL1, J76Y01J, J79R01N, J84A00S, J86T01L

All data for this body: [vot]

MPC data
Name (number) Simpson (4788)
a 2.26206
e 0.13031
i / sin(i) 4.3207 / 0.07534
q 1.96729
Q 2.55682
ω 110.3351
Node 277.1318
m 117.7811
n 0.2897
Epoch 2460800.5
nobs 3817
nopp 26
Years observed 1976-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.263
ep 0.105
sin(ip) 0.087
G 0.150
H 13.870
Mass
D 3.58 0.700
pV 0.500 0.1740
Value
Rotational Period 2.817
Period quality 3
Spectral Class S
Spectral Class Score 2.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2626 0.1048 0.0869 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.58 0.700 0.700 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.500 0.1740 0.1740 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
13.87 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
2.81752 3 Synodic Sogorb 2017CBET.4902....1S Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S S DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT