[ hide orbit diagram ]
For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .09228768827755086 | 4.7559e-08 | |
a | 2.607939844448825 | 1.9219e-08 | au |
q | 2.367259105037727 | 1.2773e-07 | au |
i | 14.47311344352554 | 5.9444e-06 | deg |
node | 137.9976419256031 | 2.1793e-05 | deg |
peri | 163.8477739794847 | 4.033e-05 | deg |
M | 229.5458644590534 | 3.4883e-05 | deg |
tp | 2459757.942570691388 (2022-Jun-27.44257069) | 0.00014951 | TDB |
period | 1538.313251755143 4.21 | 1.7005e-05 4.656e-08 | d yr |
n | .2340225565821896 | 2.5869e-09 | deg/d |
Q | 2.848620583859923 | 2.0993e-08 | au |
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| | Orbit Determination Parameters
Additional Information
|
[ hide covariance matrix ]
Orbital Elements at Epoch 2457081.5 (2015-Feb-28.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .09365513646357627 | 4.7607e-08 | |
q | 2.36271673915189 | 1.2799e-07 | au |
tp | 2456679.285518322880 (2014-Jan-21.78551832) | 0.00014777 | TDB |
node | 138.0725191083458 | 2.177e-05 | deg |
peri | 163.2829515911113 | 3.9904e-05 | deg |
i | 14.48316031306664 | 5.9489e-06 | deg |
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| | Orbit Determination Parameters
Additional Information
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Orbit Covariance (6×6)
|
|
e |
q |
tp |
node |
peri |
i |
e |
2.266378999194289E-15 |
-6.038356905037545E-15 |
1.867444016282152E-12 |
7.273827761299587E-15 |
4.420678476897879E-13 |
-5.180671712193577E-16 |
q |
-6.038356905037545E-15 |
1.638094090724898E-14 |
-5.210233337753852E-12 |
-1.934468597254182E-14 |
-1.217244114420778E-12 |
2.755588059276558E-15 |
tp |
1.867444016282152E-12 |
-5.210233337753852E-12 |
2.183649280714556E-8 |
2.354693750522776E-11 |
4.972801797714865E-9 |
1.708154743862105E-11 |
node |
7.273827761299587E-15 |
-1.934468597254182E-14 |
2.354693750522776E-11 |
4.739281680356238E-10 |
-4.531021446554829E-10 |
3.617223589153968E-11 |
peri |
4.420678476897879E-13 |
-1.217244114420778E-12 |
4.972801797714865E-9 |
-4.531021446554829E-10 |
1.592308596198129E-9 |
-3.112282510774088E-11 |
i |
-5.180671712193577E-16 |
2.755588059276558E-15 |
1.708154743862105E-11 |
3.617223589153968E-11 |
-3.112282510774088E-11 |
3.538944679334504E-11 |
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
15.54 |
|
n/a |
E2021B55 |
|
diameter |
diameter |
2.729 |
km |
0.469 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
rotation period |
rot_per |
17.2279 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] |
geometric albedo |
albedo |
0.164 |
|
0.055 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
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|
146373 (2001 QM3) Discovered 2001-Aug-16 by LINEAR at Socorro |
Reference: 20070106/Numbers.arc | Last Updated: 2007-01-09 |
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[ hide close-approach data ]
Close-Approach Data ...sorted by Date/Time (TDB)
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Date/Time (TDB) |
Time Uncertainty (days_HH:MM) |
Body |
Nominal Distance (au) |
Minimum Distance (au) |
Maximum Distance (au) |
V-relative (km/s) |
V-infinity (km/s) |
JD (TDB) |
Time Uncertainty (minutes) |
Semi-major axis (km) |
Semi-minor axis (km) |
range-LOV angle (deg) |
N-sigma |
BP |
Orbit Ref. |
Reference |
Modified |
1907-Jan-19 21:26 |
00:09 |
Europ |
0.00719668959568581 |
0.00717231359638289 |
0.00722112148947022 |
3.37312817694316 |
3.37312773911255 |
2417595.393382164 |
9.1327695508755 |
1574.28861403166 |
53.3459331940798 |
-39.4685749038258 |
12824.7545156857 |
T |
23 |
CATAB v2.0f-lin.ifort 2021-Apr-13 19:00:54 |
2021-Apr-13 19:00 |
2013-Nov-16 17:02 |
< 00:01 |
Hebe |
0.0222225888739693 |
0.0222199181416488 |
0.0222252596869487 |
3.65137008683879 |
3.65137001022499 |
2456613.209617021 |
0.665890722112696 |
152.470292070568 |
58.8475335957147 |
31.9321216005475 |
35117.8026535045 |
T |
23 |
CATAB v2.0f-lin.ifort 2021-Apr-13 19:00:54 |
2021-Apr-13 19:00 |
2046-Mar-15 08:41 |
00:03 |
Hebe |
0.00500926916071242 |
0.00500626300127064 |
0.00501229264810399 |
3.57652065157258 |
3.57652030457819 |
2468419.862053973 |
2.68476266113429 |
544.879212814507 |
69.5641740396269 |
75.7383923234734 |
10436.4204416366 |
T |
23 |
CATAB v2.0f-lin.ifort 2021-Apr-13 19:00:54 |
2021-Apr-13 19:00 |
2053-Jan-29 05:03 |
00:02 |
David |
0.042907085926913 |
0.0428998614739737 |
0.0429143147011526 |
4.48279492953166 |
4.48279485098909 |
2470931.710639588 |
1.78862257963007 |
779.559713827821 |
69.2842872230165 |
-62.9320341449724 |
82522.6840240885 |
T |
23 |
CATAB v2.0f-lin.ifort 2021-Apr-13 19:00:54 |
2021-Apr-13 19:00 |
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