1997 JA

1997JA, 09444, 1991 ET8, 1991ET8, 1998 MQ33, 1998MQ33, J91E08T, J97J00A, J98M33Q

All data for this body: [vot]

MPC data
Name (number) 1997 JA (9444)
a 3.13629
e 0.08606
i / sin(i) 2.2951 / 0.04005
q 2.86637
Q 3.40621
ω 80.0806
Node 84.4767
m 309.8616
n 0.1775
Epoch 2460200.5
nobs 3209
nopp 25
Years observed 1991-2023
rms 0.59
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.136
ep 0.122
sin(ip) 0.021
Value Standard error
G 0.150
H 13.180
Mass
D 13.61 0.312
pV 0.066 0.0122
Rotational Period 15.310
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 602 Themis 0.0000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1358 0.1216 0.0205 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
13.61 0.312 0.312 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.066 0.0122 0.0122 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
13.18 MPC-2023-12-04 MPC-2023-12-04 Phot
Period data
[raw, vot]


Value Uncertainty up Uncertainty down Author Reference Method
15.31 Durech 2023A&A...675A..24D Model
15.31 Durech 2019A&A...631A...2D Model
15.31 Durech 2018A&A...617A..57D Model