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(2002 XD40)
Classification: Mars-crossing Asteroid          SPK-ID: 3144526
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ 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 2452621.5 (2002-Dec-13.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5433821788568101 0.013094  
a 2.904569762112922 0.098239 au
q 1.326278316134396 0.0068373 au
i 10.79701218455915 0.21135 deg
node 69.09972061639361 0.055126 deg
peri 7.011994066868387 0.49091 deg
M 1.154685941557007 0.091749 deg
tp 2452615.700607238915
(2002-Dec-07.20060724)
0.5726 TDB
period 1808.094581263702
4.95
91.731
0.2511
d
yr
n .1991046285578662 0.010101 deg/d
Q 4.482861208091448 0.15162 au
  Orbit Determination Parameters
   # obs. used (total)      19  
   data-arc span      3 days  
   first obs. used      2002-12-11  
   last obs. used      2002-12-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      9  
   norm. resid. RMS      .43884  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 21:39:38  

Additional Information
 Earth MOID = .3417 au 
 Jupiter MOID = .854585 au 
 T_jup = 3.024 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e .0001714472573793688 8.93482848815598E-5 -.004553932166561573 .0006994265832407787 -.004078381014717744 .002765310791231038
q 8.93482848815598E-5 4.67486138650138E-5 -.002178055868989597 .000358691534758036 -.001962591343777363 .001437704440881051
tp -.004553932166561573 -.002178055868989597 .3278650694191278 -.02474317292988865 .2809252385004332 -.07711098205223661
node .0006994265832407787 .000358691534758036 -.02474317292988865 .003038889333366679 -.02178261161149816 .0113921076175136
peri -.004078381014717744 -.001962591343777363 .2809252385004332 -.02178261161149816 .2409951240988196 -.06883549452626563
i .002765310791231038 .001437704440881051 -.07711098205223661 .0113921076175136 -.06883549452626563 .04466963167461597

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 19.8   .29787 4 autocmod 2.9c

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
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
2002-Dec-06 19:18 21:29 Earth 0.342762279325921 0.32221128716164 0.363320667986504 6.15087194542382 6.14960800305267 2452615.304238528 1288.58905844752 1028106.64196289 129018.189646077 -4.8111837177226 34.1910567139015 T 4 CATAB v2.0g-lin.ifort 2021-Apr-14 21:39:38 2021-Apr-14 21:39
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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