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37858 (1998 EX15)
Classification: Main-belt Asteroid          SPK-ID: 2037858
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1297973239426208 4.1052e-08  
a 2.376305818663837 9.0848e-09 au
q 2.067867682531993 9.7684e-08 au
i 6.931033617173905 4.5935e-06 deg
node 147.55994261025 2.9801e-05 deg
peri 218.9944161885519 3.2873e-05 deg
M 157.7049202781707 1.343e-05 deg
tp 2458414.369033762238
(2018-Oct-22.86903376)
4.9669e-05 TDB
period 1337.987093068533
3.66
7.6728e-06
2.101e-08
d
yr
n .2690608914428148 1.543e-09 deg/d
Q 2.684743954795683 1.0264e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1450  
   data-arc span      8090 days (22.15 yr)  
   first obs. used      1998-02-27  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51085  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:29:00  

Additional Information
 Earth MOID = 1.07053 au 
 Jupiter MOID = 2.77257 au 
 T_jup = 3.520 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456990.5 (2014-Nov-29.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .129724218991662 4.1176e-08  
q 2.068285976265286 9.7992e-08 au
tp 2457073.281071343683
(2015-Feb-19.78107134)
4.9815e-05 TDB
node 147.6196693823359 2.9763e-05 deg
peri 218.3056566582259 3.2832e-05 deg
i 6.934549693361561 4.5968e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1450  
   data-arc span      8090 days (22.15 yr)  
   first obs. used      1998-02-27  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51085  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:29:00  

Additional Information
 Jupiter MOID = 2.77257 au 
 T_jup = 3.520 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.695442702352026E-15 -4.021916254388704E-15 -3.883937024055603E-13 1.322235866020305E-14 -1.176306478548389E-13 1.263651309546976E-16
q -4.021916254388704E-15 9.60251300929834E-15 8.850128129656412E-13 -3.190053611920909E-14 2.684489411527219E-13 -7.931868888509819E-17
tp -3.883937024055603E-13 8.850128129656412E-13 2.481575352405151E-9 -1.116567797057849E-11 7.014545924022644E-10 -1.084797015338403E-13
node 1.322235866020305E-14 -3.190053611920909E-14 -1.116567797057849E-11 8.858513754575285E-10 -8.818450195430569E-10 3.224805095168115E-11
peri -1.176306478548389E-13 2.684489411527219E-13 7.014545924022644E-10 -8.818450195430569E-10 1.077958971614352E-9 -3.205175511808151E-11
i 1.263651309546976E-16 -7.931868888509819E-17 -1.084797015338403E-13 3.224805095168115E-11 -3.205175511808151E-11 2.113093713375148E-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 15.1   n/a MPO266135  

37858 (1998 EX15)          Discovered 1998-Mar-03 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1998 EX15 = 1999 LJ29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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