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101328 (1998 SJ162)
Classification: Mars-crossing Asteroid          SPK-ID: 2101328
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3186202906863138 3.6714e-08  
a 2.373038458345105 4.6834e-09 au
q 1.616940254937386 8.6413e-08 au
i 4.871251190491872 3.9083e-06 deg
node 206.9253658314549 3.7989e-05 deg
peri 190.7548981638236 3.8388e-05 deg
M 18.74141997004523 4.4524e-06 deg
tp 2459130.988672311464
(2020-Oct-08.48867231)
1.6479e-05 TDB
period 1335.22849431203
3.66
3.9528e-06
1.082e-08
d
yr
n .2696167746071718 7.9817e-10 deg/d
Q 3.129136661752824 6.1756e-09 au
  Orbit Determination Parameters
   # obs. used (total)      909  
   data-arc span      10609 days (29.05 yr)  
   first obs. used      1992-01-27  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47444  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:36:17  

Additional Information
 Earth MOID = .623547 au 
 Jupiter MOID = 2.30241 au 
 T_jup = 3.468 
[ show covariance matrix ]

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 16.57   n/a E2021B55  

101328 (1998 SJ162)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 SJ162 = 1987 SD25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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