1998 QW42

1998QW42, 12889, 1990 BX4, 1990BX4, 1993 TK15, 1993TK15, J90B04X, J93T15K, J98Q42W

All data for this body: [vot]

MPC data
Name (number) 1998 QW42 (12889)
a 3.10945
e 0.12815
i / sin(i) 1.5880 / 0.02771
q 2.71097
Q 3.50793
ω 6.6171
Node 205.0512
m 70.5577
n 0.1798
Epoch 2460800.5
nobs 3778
nopp 25
Years observed 1990-2025
rms 0.65
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.113
ep 0.156
sin(ip) 0.039
G 0.150
H 13.150
Mass
D
pV
Value
Rotational Period 5.360
Period quality 2
Spectral Class X
Spectral Class Score 11.203
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 0 Themis Novakovic 2019EPSC...13.1671N HCM
24 Themis 602 Themis -0.2400 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1133 0.1562 0.0392 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
13.15 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
5.363 2 Synodic Erasmus 2020ApJS..247...13E Lightcurve
5.363 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
5.363029 2 Sidereal Durech 2019A&A...631A...2D Model
5.36303 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
D X 0.2484 0.5180 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X 0.674 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
X X 0.5396 0.5180 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X X 0.6535 0.5180 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT