1991 JJ

1991JJ, 08278, 1976 UG4, 1976UG4, 1976 YZ3, 1976YZ3, J76U04G, J76Y03Z, J91J00J

All data for this body: [vot]

MPC data
Name (number) 1991 JJ (8278)
a 2.59424
e 0.12699
i / sin(i) 14.1107 / 0.24380
q 2.26479
Q 2.92368
ω 164.9030
Node 62.3394
m 50.3767
n 0.2359
Epoch 2460800.5
nobs 4787
nopp 26
Years observed 1976-2025
rms 0.61
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.594
ep 0.162
sin(ip) 0.224
G 0.150
H 12.400
Mass
D 9.70 0.325
pV 0.261 0.0477
Value
Rotational Period 75.020
Period quality 2+
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
15 Eunomia 0 Eunomia Novakovic 2019EPSC...13.1671N HCM
15 Eunomia 502 Eunomia -0.9800 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5938 0.1616 0.2240 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.27 0.840 0.840 Usui 2011PASJ...63.1117U NEATM
10.55 2.110 2.110 Ali-Lagoa 2018A&A...612A..85A NEATM
9.58 0.358 0.358 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.221 0.0880 0.0880 Ali-Lagoa 2018A&A...612A..85A NEATM
0.278 0.0567 0.0567 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
12.40 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
72.0 2- Synodic Behrend LCDB Lightcurve
75.028 2+ Synodic Ferrero 2020MPBu...47..352F Lightcurve
75.1 2+ Synodic Benishek 2021MPBu...48...77B Lightcurve