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JPL Small-Body Database Browser
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234145 (2000 EW70)
Classification: Aten [NEO, PHA]          SPK-ID: 2234145
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 73 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3213234974987577 4.3909e-08  
a .9375634303033784 5.4659e-10 au
q .6363022697513641 4.1505e-08 au
i 5.427547664664202 3.4022e-06 deg
node 178.045909091284 4.8295e-06 deg
peri 125.7617992845755 5.052e-06 deg
M 357.4262795468406 5.5271e-06 deg
tp 2459002.870600048581
(2020-Jun-02.37060005)
5.0898e-06 TDB
period 331.5884661993686
0.91
2.8997e-07
7.939e-10
d
yr
n 1.085683118373451 9.4941e-10 deg/d
Q 1.238824590855393 7.2222e-10 au
  Orbit Determination Parameters
   # obs. used (total)      404  
   # delay obs. used      4  
   # Doppler obs. used      6  
   data-arc span      6939 days (19.00 yr)  
   first obs. used      2000-03-09  
   last obs. used      2019-03-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52333  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Mar-12 07:56:25  

Additional Information
 Earth MOID = .0102943 au 
 Jupiter MOID = 3.97843 au 
 T_jup = 6.350 
[ show covariance matrix ]

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 21.3   n/a MPO172496  
diameter diameter 0.344 km 0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2014ApJ...784..110M)  
rotation period rot_per 33. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 upper-limit; Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Benner, L.A.M. (2011) http://echo.jpl.nasa.gov/~lance/radar.nea.periods.html]
geometric albedo albedo 0.045   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2014ApJ...784..110M)  

234145 (2000 EW70)          Discovered 2000-Mar-09 by LINEAR at Socorro
Reference: 20100330/Numbers.arcLast Updated: 2010-04-05

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