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207273 (2005 EL321)
Classification: Main-belt Asteroid          SPK-ID: 2207273
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01454498501566661 5.9623e-08  
a 2.612175241764201 2.0742e-08 au
q 2.574181192014446 1.6238e-07 au
i 2.33489222951379 6.2034e-06 deg
node 80.31155051725761 0.00014408 deg
peri 30.47950270679985 0.00024937 deg
M 270.5256292967361 0.00020477 deg
tp 2459383.764012466308
(2021-Jun-18.26401247)
0.00087805 TDB
period 1542.062195055345
4.22
1.8367e-05
5.029e-08
d
yr
n .2334536188970507 2.7807e-09 deg/d
Q 2.650169291513957 2.1044e-08 au
  Orbit Determination Parameters
   # obs. used (total)      171  
   data-arc span      7653 days (20.95 yr)  
   first obs. used      1999-12-02  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58755  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 23:46:35  

Additional Information
 Earth MOID = 1.59114 au 
 Jupiter MOID = 2.33547 au 
 T_jup = 3.408 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457536.5 (2016-May-28.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01328881108452112 5.9588e-08  
q 2.578288463786199 1.6229e-07 au
tp 2457818.040054068820
(2017-Mar-05.54005407)
0.00095472 TDB
node 80.32064749680704 0.00014414 deg
peri 25.12525903420809 0.00026499 deg
i 2.335037698804654 6.1988e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      171  
   data-arc span      7653 days (20.95 yr)  
   first obs. used      1999-12-02  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58755  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 23:46:35  

Additional Information
 Jupiter MOID = 2.33547 au 
 T_jup = 3.408 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.550710308642868E-15 -9.598734619399292E-15 -3.484220870312658E-12 -2.859971622810706E-14 -6.982613390026363E-13 6.7018502507444E-16
q -9.598734619399292E-15 2.63395125593133E-14 1.230133942232914E-11 7.416005819801175E-14 2.544887024036982E-12 -1.574885454402658E-15
tp -3.484220870312658E-12 1.230133942232914E-11 9.114857595402795E-7 -5.486606608098581E-11 2.123194664315767E-7 1.535679519564626E-11
node -2.859971622810706E-14 7.416005819801175E-14 -5.486606608098581E-11 2.077660058690301E-8 -2.077215532258956E-8 4.065647279807888E-11
peri -6.982613390026363E-13 2.544887024036982E-12 2.123194664315767E-7 -2.077215532258956E-8 7.022079323979742E-8 -3.70352800290895E-11
i 6.7018502507444E-16 -1.574885454402658E-15 1.535679519564626E-11 4.065647279807888E-11 -3.70352800290895E-11 3.842501151392381E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9   n/a MPO494155  

207273 (2005 EL321)          Discovered 2005-Mar-08 by Lowe, A. at Mayhill
Reference: 20090209/Numbers.arcLast Updated: 2009-02-11

[ 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
2023-Jul-21 23:21 < 00:01 Eunom 0.0379097556565785 0.0379041338048212 0.0379153776226007 5.35379646228074 5.35379639311659 2460147.473003725 0.717287610601802 299.593736504614 59.406508608373 -21.1840444354756 38726.6338178426 T 11 CATAB v2.0f-lin.ifort 2020-Dec-17 23:46:36 2020-Dec-17 23:46

Alternate Designations
 2005 EL321 = 2007 VD103 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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