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95550 (2002 ET89)
Classification: Outer Main-belt Asteroid          SPK-ID: 2095550
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1033958208095821 5.7999e-08  
a 3.227298278441909 1.9972e-08 au
q 2.893609123945057 1.866e-07 au
i 17.40479793915326 5.4231e-06 deg
node 183.8471045504259 1.5295e-05 deg
peri 24.96882705788941 2.633e-05 deg
M 82.30409204283163 1.9286e-05 deg
tp 2458912.354372625526
(2020-Mar-03.85437263)
0.00011461 TDB
period 2117.664158959528
5.80
1.9658e-05
5.382e-08
d
yr
n .1699986272501674 1.5781e-09 deg/d
Q 3.560987432938761 2.2037e-08 au
  Orbit Determination Parameters
   # obs. used (total)      773  
   data-arc span      8831 days (24.18 yr)  
   first obs. used      1997-05-01  
   last obs. used      2021-07-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5338  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:49:10  

Additional Information
 Earth MOID = 1.90039 au 
 Jupiter MOID = 1.41091 au 
 T_jup = 3.107 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457526.5 (2016-May-18.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1029162733031662 5.7524e-08  
q 2.893524570248723 1.8566e-07 au
tp 2456789.847991720183
(2014-May-12.34799172)
0.00012336 TDB
node 183.921010501236 1.5299e-05 deg
peri 23.59287074536567 2.6557e-05 deg
i 17.40160007912296 5.4244e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      773  
   data-arc span      8831 days (24.18 yr)  
   first obs. used      1997-05-01  
   last obs. used      2021-07-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5338  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:49:10  

Additional Information
 Jupiter MOID = 1.41091 au 
 T_jup = 3.107 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.3090217635922E-15 -1.062879402900661E-14 2.048202463653953E-12 2.89407674505422E-15 4.197633496496952E-13 -5.120353930107458E-15
q -1.062879402900661E-14 3.447021975244619E-14 -7.541565828074106E-12 -2.149719543182555E-14 -1.490007703711397E-12 1.827302592704722E-14
tp 2.048202463653953E-12 -7.541565828074106E-12 1.521885206404223E-8 4.370214746129273E-11 2.69832829850764E-9 -8.116383150716553E-13
node 2.89407674505422E-15 -2.149719543182555E-14 4.370214746129273E-11 2.340623884498263E-10 -2.167271678785557E-10 3.874604093272429E-11
peri 4.197633496496952E-13 -1.490007703711397E-12 2.69832829850764E-9 -2.167271678785557E-10 7.052728747259002E-10 -3.699308190833662E-11
i -5.120353930107458E-15 1.827302592704722E-14 -8.116383150716553E-13 3.874604093272429E-11 -3.699308190833662E-11 2.942367087243058E-11

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 14.46   n/a E2021B10  

95550 (2002 ET89)          Discovered 2002-Mar-12 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 2002 ET89 = 1997 JB3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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