1981 EZ21

1981EZ21, 1997 TJ16, 1997TJ16, 48400, J81E21Z, J97T16J

All data for this body: [vot]

MPC data
Name (number) 1981 EZ21 (48400)
a 2.83718
e 0.04277
i / sin(i) 1.5431 / 0.02693
q 2.71584
Q 2.95851
ω 55.5932
Node 203.9037
m 240.7679
n 0.2062
Epoch 2460200.5
nobs 1564
nopp 20
Years observed 1981-2023
rms 0.65
Best values
[raw, vot]

Value Standard error
Parent Koronis (158)
 
ap 2.838
ep 0.065
sin(ip) 0.038
Value Standard error
G 0.150
H 14.680
Mass
D 3.32 0.453
pV 0.278 0.0957
Rotational Period
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
158 Koronis 605 Koronis -0.2500 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8381 0.0653 0.0382 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.32 0.850 0.850 Masiero 2011ApJ...741...68M NEATM
3.33 0.535 0.535 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.277 0.1312 0.1312 Masiero 2011ApJ...741...68M NEATM
0.279 0.1400 0.1400 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
14.68 MPC-2023-12-04 MPC-2023-12-04 Phot