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JPL Small-Body Database Browser
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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1029087668424669 6.4471e-08  
a 3.223123168355771 2.1515e-08 au
q 2.891435537718894 2.1064e-07 au
i 17.40273172280044 5.9946e-06 deg
node 183.9007725133278 1.6044e-05 deg
peri 24.26655766404606 2.752e-05 deg
M 15.54569592301916 2.0781e-05 deg
tp 2458909.231387643158
(2020-Feb-29.73138764)
0.00012217 TDB
period 2113.556100104252
5.79
2.1163e-05
5.794e-08
d
yr
n .170329048745024 1.7055e-09 deg/d
Q 3.554810798992648 2.373e-08 au
  Orbit Determination Parameters
   # obs. used (total)      625  
   data-arc span      8397 days (22.99 yr)  
   first obs. used      1997-05-01  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56286  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 17:16:14  

Additional Information
 Earth MOID = 1.89715 au 
 Jupiter MOID = 1.41772 au 
 T_jup = 3.108 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457106.5 (2015-Mar-25.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1027721766576273 6.4253e-08  
q 2.893056094329491 2.0988e-07 au
tp 2456788.936129276749
(2014-May-11.43612928)
0.00012863 TDB
node 183.9286592498688 1.6044e-05 deg
peri 23.40857045405151 2.7687e-05 deg
i 17.40033253202967 5.9939e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      625  
   data-arc span      8397 days (22.99 yr)  
   first obs. used      1997-05-01  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56286  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 17:16:14  

Additional Information
 Jupiter MOID = 1.41772 au 
 T_jup = 3.108 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.128495082179592E-15 -1.34283429336774E-14 1.978811213469967E-12 -1.334604317008205E-14 4.699234569170513E-13 2.868481679077733E-15
q -1.34283429336774E-14 4.404772440907972E-14 -7.206133914726996E-12 2.946550928791818E-14 -1.642032954458045E-12 -6.506895372786367E-15
tp 1.978811213469967E-12 -7.206133914726996E-12 1.654641910340178E-8 3.361759889424131E-11 2.9164887467464E-9 7.047192454345432E-12
node -1.334604317008205E-14 2.946550928791818E-14 3.361759889424131E-11 2.574055879569032E-10 -2.41402936000943E-10 3.453181390503117E-11
peri 4.699234569170513E-13 -1.642032954458045E-12 2.9164887467464E-9 -2.41402936000943E-10 7.665815243691507E-10 -3.129392181723924E-11
i 2.868481679077733E-15 -6.506895372786367E-15 7.047192454345432E-12 3.453181390503117E-11 -3.129392181723924E-11 3.592694676673274E-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 14.4   n/a MPO436438  

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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