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168948 Silvestri (2000 YX143)
Classification: Main-belt Asteroid          SPK-ID: 2168948
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09625222644529337 4.4128e-08  
a 2.615926276584187 1.6759e-08 au
q 2.364137548246212 1.1403e-07 au
i 4.729356411795073 7.3089e-06 deg
node 143.472109475569 5.1131e-05 deg
peri 126.8535963921211 6.9289e-05 deg
M 103.8631205316304 4.2687e-05 deg
tp 2458554.643047482110
(2019-Mar-12.14304748)
0.00018409 TDB
period 1545.384945925626
4.23
1.4851e-05
4.066e-08
d
yr
n .2329516674464393 2.2387e-09 deg/d
Q 2.867715004922161 1.8373e-08 au
  Orbit Determination Parameters
   # obs. used (total)      382  
   data-arc span      9688 days (26.52 yr)  
   first obs. used      1993-04-24  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55472  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 15:36:52  

Additional Information
 Earth MOID = 1.35167 au 
 Jupiter MOID = 2.21448 au 
 T_jup = 3.396 
[ 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 16.0   n/a MPO436843  

168948 Silvestri           Discovered 2000 Dec. 23 by the Sloan Digital Sky Survey at Apache Point.
Nicole Silvestri (b. 1973) is an American astronomer and a contributor to the Sloan Digital Sky Survey, known for establishing a chromospheric activity-age relation for M dwarf stars and work on SDSS close binary systems.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20130127/MPCPages.arcLast Updated: 2013-01-31

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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