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(2003 EM1)
Classification: Aten [NEO]          SPK-ID: 3150768
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05252319312927747 1.1217e-05  
a .9566401352419215 1.1571e-05 au
q .906394340663392 2.1686e-05 au
i 15.26620855941203 0.0041282 deg
node 345.9349211980444 0.00033952 deg
peri 23.30007891270462 0.0087089 deg
M 147.1268511206181 0.025159 deg
tp 2459060.827546393355
(2020-Jul-30.32754639)
0.026417 TDB
period 341.7600724504711
0.94
0.0062006
1.698e-05
d
yr
n 1.053370563210459 1.9111e-05 deg/d
Q 1.006885929820451 1.2179e-05 au
  Orbit Determination Parameters
   # obs. used (total)      243  
   data-arc span      8 days  
   first obs. used      2003-03-05  
   last obs. used      2003-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      5  
   norm. resid. RMS      .46983  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 21:42:04  

Additional Information
 Earth MOID = .00969387 au 
 Jupiter MOID = 4.05568 au 
 T_jup = 6.265 
[ show covariance matrix ]

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 24.5   n/a MPO43514  
rotation period rot_per 0.030968 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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