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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09665510279379605 4.4151e-08  
a 2.616916850028801 1.6917e-08 au
q 2.363978482886451 1.1425e-07 au
i 4.728539613448215 7.3272e-06 deg
node 143.4766324905972 5.1328e-05 deg
peri 126.9422350186647 6.932e-05 deg
M 10.58709975396028 4.2699e-05 deg
tp 2458555.026559226557
(2019-Mar-12.52655923)
0.00018349 TDB
period 1546.262815962966
4.23
1.4994e-05
4.105e-08
d
yr
n .2328194122522456 2.2576e-09 deg/d
Q 2.869855217171152 1.8552e-08 au
  Orbit Determination Parameters
   # obs. used (total)      375  
   data-arc span      9676 days (26.49 yr)  
   first obs. used      1993-04-24  
   last obs. used      2019-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56428  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 19:26:15  

Additional Information
 Earth MOID = 1.35101 au 
 Jupiter MOID = 2.21282 au 
 T_jup = 3.395 
[ 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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