Thumper

16626, 1981 YJ, 1981YJ, 1993 HJ3, 1993HJ3, J81Y00J, J93H03J

All data for this body: [vot]

MPC data
Name (number) Thumper (16626)
a 2.89767
e 0.03144
i / sin(i) 3.2033 / 0.05588
q 2.80657
Q 2.98876
ω 2.8829
Node 104.3979
m 261.9850
n 0.1998
Epoch 2460800.5
nobs 2953
nopp 26
Years observed 1981-2025
rms 0.71
Best values
[raw, vot]

Value Standard error
Parent Koronis (158)
 
ap 2.899
ep 0.049
sin(ip) 0.036
G 0.150
H 13.910
Mass
D
pV
Value
Rotational Period 6.810
Period quality 2
Spectral Class S
Spectral Class Score 3.854
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
158 Koronis 0 Koronis Novakovic 2019EPSC...13.1671N HCM
158 Koronis 605 Koronis 0.2600 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8992 0.0494 0.0359 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
13.91 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
6.813 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
6.813 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
S S 0.6423 0.6423 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT