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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2017733414522901 3.2005e-08  
a 2.759101316453245 8.7586e-09 au
q 2.202388224427061 8.9019e-08 au
i 2.430628552621001 3.6199e-06 deg
node 18.25775310967918 7.0099e-05 deg
peri 344.1512850035961 7.0547e-05 deg
M 338.919232907863 7.1248e-06 deg
tp 2459098.524313345327
(2020-Sep-06.02431335)
3.3138e-05 TDB
period 1673.978591484936
4.58
7.9709e-06
2.182e-08
d
yr
n .2150565137638079 1.024e-09 deg/d
Q 3.315814408479429 1.0526e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2776  
   data-arc span      31802 days (87.07 yr)  
   first obs. used      1933-10-20  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4216  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:08:34  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1917-Jul-10 12:48 00:05 Psych 0.0496902642737313 0.0496855824471436 0.0496949464276261 1.67503214515202 1.67503199978739 2421420.033229235 4.76248416712972 307.950207892706 29.0414980623867 41.1885523841663 168676.180575711 T 38 CATAB v2.0f-lin.ifort 2020-Dec-18 02:08:41 2020-Dec-18 02:08
1972-May-05 13:45 00:03 Psych 0.0448872422437029 0.0448857696541248 0.0448887149247015 1.56219894194836 1.56219876940672 2441443.072587932 3.04891170441364 128.517608539108 23.0210053044402 -56.7919675100473 244294.299126859 T 38 CATAB v2.0f-lin.ifort 2020-Dec-18 02:08:41 2020-Dec-18 02:08
1974-Oct-22 20:30 < 00:01 Juno 0.0326696142008628 0.0326685742702783 0.0326706544072248 6.91444445952791 6.9144444056706 2442343.354106833 0.393669815233885 178.671649400897 25.0915115920098 75.1397084233742 188329.361076157 T 38 CATAB v2.0f-lin.ifort 2020-Dec-18 02:08:41 2020-Dec-18 02:08

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 | Close-Approach Data ]
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