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1205 Ebella (1931 TB1)
Classification: Main-belt Asteroid          SPK-ID: 2001205
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2715279729559436 1.7952e-08  
a 2.536794062681414 8.7555e-09 au
q 1.847983513034857 4.5527e-08 au
i 8.845395665539717 5.1037e-07 deg
node 22.99959277790571 2.617e-06 deg
peri 349.328353170919 4.3291e-06 deg
M 36.57113520964308 2.8111e-06 deg
tp 2459050.579097999625
(2020-Jul-20.07909800)
1.1131e-05 TDB
period 1475.795717325823
4.04
7.6404e-06
2.092e-08
d
yr
n .243936200500926 1.2629e-09 deg/d
Q 3.225604612327971 1.1133e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1829  
   data-arc span      32677 days (89.46 yr)  
   first obs. used      1931-10-06  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48332  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:16:48  

Additional Information
 Earth MOID = .848089 au 
 Jupiter MOID = 2.23866 au 
 T_jup = 3.379 
[ 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 13.62   n/a MPCxxxxx  
diameter diameter 5.474 km 0.283 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.214   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

1205 Ebella (1931 TB1)          Discovered 1931-Oct-06 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1931 TB1 = 1970 JT 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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