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181828 (1998 SU58)
Classification: Main-belt Asteroid          SPK-ID: 2181828
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2270925815647718 3.4632e-08  
a 2.359185002386753 8.9194e-09 au
q 1.823431589805853 7.9691e-08 au
i 7.589305977266285 3.9342e-06 deg
node 177.4768917545618 2.6964e-05 deg
peri 160.0194555124672 2.819e-05 deg
M 65.34743385884829 8.5199e-06 deg
tp 2458960.247750884233
(2020-Apr-20.74775088)
3.078e-05 TDB
period 1323.553268648589
3.62
7.5059e-06
2.055e-08
d
yr
n .271995097233659 1.5425e-09 deg/d
Q 2.894938414967653 1.0945e-08 au
  Orbit Determination Parameters
   # obs. used (total)      508  
   data-arc span      8181 days (22.40 yr)  
   first obs. used      1998-09-14  
   last obs. used      2021-02-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57048  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:32:12  

Additional Information
 Earth MOID = .814964 au 
 Jupiter MOID = 2.51804 au 
 T_jup = 3.506 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457899.5 (2017-May-26.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2276026133848541 3.4574e-08  
q 1.822031221276604 7.9602e-08 au
tp 2457637.609898861065
(2016-Sep-06.10989886)
2.878e-05 TDB
node 177.5232298713814 2.6957e-05 deg
peri 160.1562427019331 2.8181e-05 deg
i 7.590985547734975 3.9355e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      508  
   data-arc span      8181 days (22.40 yr)  
   first obs. used      1998-09-14  
   last obs. used      2021-02-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57048  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:32:12  

Additional Information
 Jupiter MOID = 2.51804 au 
 T_jup = 3.506 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.195329366200386E-15 -2.742896591947204E-15 2.169655055057156E-13 -1.364993339913386E-14 5.596352111041141E-14 -3.14547035061653E-15
q -2.742896591947204E-15 6.336445037823779E-15 -4.851180176624496E-13 3.229919942936149E-14 -1.235659759949975E-13 7.251082791473625E-15
tp 2.169655055057156E-13 -4.851180176624496E-13 8.282876627436664E-10 -2.845675225054443E-12 2.487615325040954E-10 -2.812766966626765E-12
node -1.364993339913386E-14 3.229919942936149E-14 -2.845675225054443E-12 7.266784907132871E-10 -7.1998513895175E-10 1.628108375964906E-11
peri 5.596352111041141E-14 -1.235659759949975E-13 2.487615325040954E-10 -7.1998513895175E-10 7.941676527570971E-10 -1.689132595244216E-11
i -3.14547035061653E-15 7.251082791473625E-15 -2.812766966626765E-12 1.628108375964906E-11 -1.689132595244216E-11 1.548813900275152E-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 16.69   n/a E2021B55  

181828 (1998 SU58)          Discovered 1998-Sep-17 by LONEOS at Anderson Mesa
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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