1998 HW89

1998HW89, 1999 TJ142, 1999TJ142, 44136, J98H89W, J99TE2J

All data for this body: [vot]

MPC data
Name (number) 1998 HW89 (44136)
a 2.22945
e 0.03859
i / sin(i) 3.7416 / 0.06526
q 2.14342
Q 2.31548
ω 196.5293
Node 267.6714
m 150.1043
n 0.2961
Epoch 2460800.5
nobs 1526
nopp 19
Years observed 1998-2025
rms 0.77
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.229
ep 0.085
sin(ip) 0.074
G 0.150
H 15.780
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 8.790
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2292 0.0849 0.0736 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
15.78 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.66 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.9117 0.9117 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V V None None Movis NIR Popescu 2018A&A...617A..12P PHOT