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58122 (1981 EW19)
Classification: Main-belt Asteroid          SPK-ID: 2058122
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1085101144971391 3.8711e-08  
a 2.316961121977097 1.3512e-08 au
q 2.065547405345942 8.903e-08 au
i 7.911304421407638 7.3322e-06 deg
node 341.953982977759 3.0956e-05 deg
peri 268.436079150937 4.5585e-05 deg
M 338.2018195679934 3.5094e-05 deg
tp 2459078.499943649370
(2020-Aug-16.99994365)
0.00012578 TDB
period 1288.17998370832
3.53
1.1268e-05
3.085e-08
d
yr
n .279464053589513 2.4446e-09 deg/d
Q 2.568374838608251 1.4978e-08 au
  Orbit Determination Parameters
   # obs. used (total)      486  
   data-arc span      13817 days (37.83 yr)  
   first obs. used      1981-02-09  
   last obs. used      2018-12-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60449  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:33:12  

Additional Information
 Earth MOID = 1.07015 au 
 Jupiter MOID = 2.50034 au 
 T_jup = 3.560 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456768.5 (2014-Apr-21.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .109040188271775 3.8724e-08  
q 2.064499957997702 8.9104e-08 au
tp 2456501.582348235389
(2013-Jul-28.08234824)
0.00012032 TDB
node 341.9796870874113 3.0947e-05 deg
peri 268.3842795933347 4.5493e-05 deg
i 7.913270894857567 7.3336e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      486  
   data-arc span      13817 days (37.83 yr)  
   first obs. used      1981-02-09  
   last obs. used      2018-12-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60449  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:33:12  

Additional Information
 Jupiter MOID = 2.50034 au 
 T_jup = 3.560 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.49958663117386E-15 -3.41912073337537E-15 1.609944891794796E-12 1.160262082411937E-14 4.571745844318802E-13 -3.498987566833129E-16
q -3.41912073337537E-15 7.939579615924614E-15 -3.547488954839913E-12 -2.70391585439311E-14 -1.001402721440492E-12 1.540811047120996E-15
tp 1.609944891794796E-12 -3.547488954839913E-12 1.447803807087748E-8 6.776065568255085E-11 4.023706799594929E-9 2.563537924132656E-12
node 1.160262082411937E-14 -2.70391585439311E-14 6.776065568255085E-11 9.577389767944415E-10 -9.288853144814931E-10 -7.160404964365253E-11
peri 4.571745844318802E-13 -1.001402721440492E-12 4.023706799594929E-9 -9.288853144814931E-10 2.069613379798244E-9 7.170475575777217E-11
i -3.498987566833129E-16 1.540811047120996E-15 2.563537924132656E-12 -7.160404964365253E-11 7.170475575777217E-11 5.378169314405725E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO432136  

58122 (1981 EW19)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 EW19 = 2002 CS81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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