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2819 Ensor (1933 UR)
Classification: Main-belt Asteroid          SPK-ID: 2002819
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2017733388961487 3.2595e-08  
a 2.75910131626071 8.9679e-09 au
q 2.202388231326028 9.061e-08 au
i 2.430628728649294 3.674e-06 deg
node 18.25775850819841 7.338e-05 deg
peri 344.1512802796002 7.3825e-05 deg
M 338.9192323744379 7.3635e-06 deg
tp 2459098.524315815461
(2020-Sep-06.02431582)
3.4261e-05 TDB
period 1673.978591309716
4.58
8.1614e-06
2.234e-08
d
yr
n .2150565137863185 1.0485e-09 deg/d
Q 3.315814401195392 1.0777e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2694  
   data-arc span      31788 days (87.03 yr)  
   first obs. used      1933-10-20  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42515  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:05:48  

Additional Information
 Earth MOID = 1.19998 au 
 Jupiter MOID = 2.14025 au 
 T_jup = 3.311 
[ 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 11.9   n/a MPO337272  
diameter diameter 9.700 km 0.193 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.247   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2819 Ensor (1933 UR)          Discovered 1933-Oct-20 by Delporte, E. at Uccle
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1933 UR = 1942 RC = 1965 UB = 1970 XG = 1977 ES3 = 1977 GR = 1979 UZ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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