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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2716140039930402 1.7918e-08  
a 2.537226076643842 8.7667e-09 au
q 1.848079942931056 4.5445e-08 au
i 8.84523850772757 5.1016e-07 deg
node 22.99346138445337 2.6159e-06 deg
peri 349.3600975157099 4.3265e-06 deg
M 84.3437184618209 2.9482e-06 deg
tp 2459050.650287224005
(2020-Jul-20.15028722)
1.1126e-05 TDB
period 1476.172723588388
4.04
7.6508e-06
2.095e-08
d
yr
n .2438739005587949 1.264e-09 deg/d
Q 3.226372210356628 1.1148e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1867  
   data-arc span      32736 days (89.63 yr)  
   first obs. used      1931-10-06  
   last obs. used      2021-05-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48149  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:06:04  

Additional Information
 Earth MOID = .84883 au 
 Jupiter MOID = 2.23871 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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