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187785 (1998 SM159)
Classification: Main-belt Asteroid          SPK-ID: 2187785
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 .1419988606621733 7.5956e-08  
a 2.425748007206139 1.3435e-08 au
q 2.08129455392933 1.8233e-07 au
i 6.894360562242031 7.0178e-06 deg
node 25.56709842711743 3.8209e-05 deg
peri 344.9864477777376 4.1813e-05 deg
M 320.0914314967596 1.6364e-05 deg
tp 2459353.478571494938
(2021-May-18.97857150)
6.3101e-05 TDB
period 1379.961441957156
3.78
1.1464e-05
3.139e-08
d
yr
n .260876854276032 2.1673e-09 deg/d
Q 2.770201460482948 1.5343e-08 au
  Orbit Determination Parameters
   # obs. used (total)      384  
   data-arc span      7550 days (20.67 yr)  
   first obs. used      1998-09-26  
   last obs. used      2019-05-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .6045  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:56:49  

Additional Information
 Earth MOID = 1.08077 au 
 Jupiter MOID = 2.69385 au 
 T_jup = 3.487 
[ 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 16.5   n/a MPO433236  

187785 (1998 SM159)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

[ show close-approach data ]
Alternate Designations
 1998 SM159 = 2002 VU93 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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