Joyce

05418, 1976 SN7, 1976SN7, 1981 QG1, 1981QG1, J76S07N, J81Q01G

All data for this body: [vot]

MPC data
Name (number) Joyce (5418)
a 2.97288
e 0.30901
i / sin(i) 17.4600 / 0.30004
q 2.05424
Q 3.89151
ω 244.0280
Node 174.7831
m 143.4510
n 0.1923
Epoch 2460800.5
nobs 3390
nopp 26
Years observed 1976-2025
rms 0.71
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.974
ep 0.272
sin(ip) 0.313
G 0.150
H 13.100
Mass
D 14.33 0.171
pV 0.061 0.0067
Value
Rotational Period 20.900
Period quality 2
Spectral Class C
Spectral Class Score 10.347
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.9735 0.2721 0.3133 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
13.34 3.800 3.800 Masiero 2020PSJ.....1....5M NEATM
13.73 3.070 3.070 Masiero 2020PSJ.....1....5M NEATM
13.98 0.287 0.287 Masiero 2011ApJ...741...68M NEATM
14.44 0.246 0.246 Masiero 2011ApJ...741...68M NEATM
14.59 1.460 1.460 Ali-Lagoa 2018A&A...612A..85A NEATM
14.79 0.450 0.450 Usui 2011PASJ...63.1117U NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.048 0.0240 0.0240 Masiero 2020PSJ.....1....5M NEATM
0.056 0.0110 0.0110 Ali-Lagoa 2018A&A...612A..85A NEATM
0.063 0.0500 0.0500 Masiero 2020PSJ.....1....5M NEATM
0.064 0.0122 0.0122 Masiero 2011ApJ...741...68M NEATM
0.069 0.0135 0.0135 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
13.10 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
20.838 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
20.9179 2 Sidereal Durech 2018A&A...617A..57D Model
20.9182 2 Sidereal Durech 2023A&A...675A..24D Model
20.96 2 Synodic Simpson 2013MPBu...40..146S Lightcurve
21.492 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
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.61 Bus VIS Carvano 2010A&A...510A..43C PHOT
C C 0.5164 0.5640 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.6714 0.5640 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT