Gruppetta

06561, 1991 TC4, 1991TC4, J91T04C

All data for this body: [vot]

MPC data
Name (number) Gruppetta (6561)
a 2.58906
e 0.18515
i / sin(i) 13.6703 / 0.23633
q 2.10971
Q 3.06841
ω 177.4221
Node 163.0571
m 49.5011
n 0.2366
Epoch 2460800.5
nobs 3986
nopp 28
Years observed 1984-2025
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.589
ep 0.153
sin(ip) 0.223
G 0.150
H 13.350
Mass
D 6.18 0.307
pV 0.266 0.0563
Value
Rotational Period 3.000
Period quality 3-
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 -0.6700 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5890 0.1529 0.2228 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.18 0.307 0.307 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.266 0.0563 0.0563 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
13.35 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.398 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
3.399 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
3.4 3- Synodic Polishook LCDB Lightcurve
3.438 2 Synodic Waszczak 2015AJ....150...75W Lightcurve