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90304 (2003 EM53)
Classification: Main-belt Asteroid          SPK-ID: 2090304
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1711644968252533 3.5683e-08  
a 2.751432992850271 1.6909e-08 au
q 2.280485349080653 9.8514e-08 au
i 17.2273870648021 4.3254e-06 deg
node 149.624061003275 1.5211e-05 deg
peri 150.3679621810914 2.0201e-05 deg
M 195.4207577487131 1.3916e-05 deg
tp 2459762.595497032478
(2022-Jul-02.09549703)
6.7124e-05 TDB
period 1667.004752110814
4.56
1.5367e-05
4.207e-08
d
yr
n .2159561930127413 1.9908e-09 deg/d
Q 3.222380636619888 1.9804e-08 au
  Orbit Determination Parameters
   # obs. used (total)      830  
   data-arc span      7541 days (20.65 yr)  
   first obs. used      1999-06-12  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58257  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:08:25  

Additional Information
 Earth MOID = 1.28004 au 
 Jupiter MOID = 2.14561 au 
 T_jup = 3.260 
[ 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 14.9   n/a MPO351477  
diameter diameter 7.707 km 0.132 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.039   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

90304 (2003 EM53)          Discovered 2003-Mar-09 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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