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101228 (1998 SN69)
Classification: Main-belt Asteroid          SPK-ID: 2101228
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1726137252435626 5.2856e-08  
a 2.336045939829316 1.3334e-08 au
q 1.932812347815278 1.2357e-07 au
i 7.855163845777961 5.7868e-06 deg
node 297.678705210515 4.3972e-05 deg
peri 6.870522508762503 4.7239e-05 deg
M 66.40658533810623 1.9948e-05 deg
tp 2458759.936826644640
(2019-Oct-03.43682664)
7.1119e-05 TDB
period 1304.128829497792
3.57
1.1166e-05
3.057e-08
d
yr
n .2760463474598845 2.3636e-09 deg/d
Q 2.739279531843354 1.5636e-08 au
  Orbit Determination Parameters
   # obs. used (total)      394  
   data-arc span      7755 days (21.23 yr)  
   first obs. used      1998-08-24  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61704  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 15:01:03  

Additional Information
 Earth MOID = .917799 au 
 Jupiter MOID = 2.49546 au 
 T_jup = 3.535 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456506.5 (2013-Aug-02.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1719583621612897 5.245e-08  
q 1.934906621098761 1.2243e-07 au
tp 2456149.378629952386
(2012-Aug-09.87862995)
6.2362e-05 TDB
node 297.7360413628284 4.4001e-05 deg
peri 6.537336944621018 4.7322e-05 deg
i 7.851607368441889 5.7791e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      394  
   data-arc span      7755 days (21.23 yr)  
   first obs. used      1998-08-24  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61704  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 15:01:03  

Additional Information
 Jupiter MOID = 2.49546 au 
 T_jup = 3.535 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.750956771210055E-15 -6.394675158919619E-15 1.097513631037949E-12 -1.15915809400453E-14 3.35074694820484E-13 -1.238519581810623E-15
q -6.394675158919619E-15 1.498836333667113E-14 -2.366719361152975E-12 2.486840376721981E-14 -7.210293501712903E-13 2.966234438020916E-15
tp 1.097513631037949E-12 -2.366719361152975E-12 3.889001588280849E-9 -2.742061375311676E-11 1.123513250084662E-9 -2.642428843232489E-12
node -1.15915809400453E-14 2.486840376721981E-14 -2.742061375311676E-11 1.936074731918193E-9 -1.925121856916118E-9 8.777565490823598E-11
peri 3.35074694820484E-13 -7.210293501712903E-13 1.123513250084662E-9 -1.925121856916118E-9 2.239379569998996E-9 -8.772556340778599E-11
i -1.238519581810623E-15 2.966234438020916E-15 -2.642428843232489E-12 8.777565490823598E-11 -8.772556340778599E-11 3.339801442494865E-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 16.2   n/a MPO436472  

101228 (1998 SN69)          Discovered 1998-Sep-19 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 SN69 = 2001 KE70 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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