1998QJ21

12546, 1982SW5, 1993TN43, 1997HD16, J82S05W, J93T43N, J97H16D, J98Q21J

All data for this body: [vot]

MPC data
Name (number) 1998QJ21 (12546)
Packed designation 12546
a 3.07899
e 0.16626
i / sin(i) 1.0175 / 0.01776
q 2.56708
Q 3.59089
ω 152.6972
Node 146.5820
m 143.3996
n 0.1824
Epoch 2459600.5
nobs 2258
nopp 23
Years observed 1982-2022
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.083
ep 0.155
sin(ip) 0.017
Value Standard error
G 0.150
H 13.380
Mass
D 12.10 3.520
pV 0.060 0.0365
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 602 Themis -0.4900 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0830 0.1546 0.0167 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.10 3.520 3.520 Masiero 2021PSJ.....2..162M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.060 0.0260 0.0470 Masiero 2021PSJ.....2..162M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2022-01-18 MPC-2022-01-18 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
13.38 MPC-2022-01-18 MPC-2022-01-18 Phot