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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2016361022837221 1.8101e-08  
a 2.758620658362505 8.2764e-09 au
q 2.202383141130935 4.9912e-08 au
i 2.430755591101127 5.545e-07 deg
node 18.25555447454131 2.1854e-05 deg
peri 344.1909230057856 2.1699e-05 deg
M 21.91168155889289 3.851e-06 deg
tp 2459098.638607230358
(2020-Sep-06.13860723)
1.7788e-05 TDB
period 1673.541179325351
4.58
7.5314e-06
2.062e-08
d
yr
n .2151127229179538 9.6807e-10 deg/d
Q 3.314858175594076 9.9452e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3117  
   data-arc span      31928 days (87.41 yr)  
   first obs. used      1933-10-20  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40525  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:32:21  

Additional Information
 Earth MOID = 1.19838 au 
 Jupiter MOID = 2.1422 au 
 T_jup = 3.311 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.01   n/a MPCxxxxx  
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

Alternate Designations
 1933 UR = 1942 RC = 1965 UB = 1970 XG = 1977 ES3 = 1977 GR = 1979 UZ1 = 2019 GZ34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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