Johnnygalecki

08623, 1981 EQ9, 1981EQ9, J81E09Q

All data for this body: [vot]

MPC data
Name (number) Johnnygalecki (8623)
a 3.15830
e 0.09619
i / sin(i) 4.8266 / 0.08414
q 2.85450
Q 3.46210
ω 344.3825
Node 208.3845
m 311.3356
n 0.1756
Epoch 2460800.5
nobs 1803
nopp 26
Years observed 1978-2025
rms 0.78
Best values
[raw, vot]

Value Standard error
Parent Hygiea (10)
 
ap 3.148
ep 0.143
sin(ip) 0.093
G 0.150
H 14.100
Mass
D 8.17 0.345
pV 0.096 0.0149
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
10 Hygiea 0 Hygiea Novakovic 2019EPSC...13.1671N HCM
10 Hygiea 601 Hygiea Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1485 0.1432 0.0931 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
8.17 0.345 0.345 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.096 0.0149 0.0149 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
14.10 MPC-2023-12-04 MPC-2023-12-04 Phot