1998HD99

17843, 1981FX, 1992FY2, J81F00X, J92F02Y, J98H99D

All data for this body: [vot]

MPC data
Name (number) 1998HD99 (17843)
Packed designation 17843
a 3.16517
e 0.10246
i / sin(i) 2.8809 / 0.05026
q 2.84088
Q 3.48946
ω 105.4454
Node 96.0502
m 95.2989
n 0.1750
Epoch 2459600.5
nobs 1644
nopp 23
Years observed 1981-2021
rms 0.50
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.155
ep 0.147
sin(ip) 0.030
Value Standard error
G 0.150
H 13.570
Mass
D 10.70 0.084
pV 0.074 0.0093
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 602 Themis 0.1800 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1550 0.1474 0.0297 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.70 0.084 0.084 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.074 0.0093 0.0093 Masiero 2011ApJ...741...68M 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
13.57 MPC-2022-01-18 MPC-2022-01-18 Phot