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201981 (2004 PX51)
Classification: Main-belt Asteroid          SPK-ID: 2201981
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1722152593902987 6.706e-08  
a 2.302840158381061 1.2296e-08 au
q 1.90625594317107 1.5443e-07 au
i 2.844591833495269 6.2722e-06 deg
node 27.29816124001395 0.00013762 deg
peri 342.0451589256205 0.0001385 deg
M 157.2605151182729 1.6749e-05 deg
tp 2458442.914705284704
(2018-Nov-20.41470528)
5.8643e-05 TDB
period 1276.421522252681
3.49
1.0224e-05
2.799e-08
d
yr
n .2820384909874108 2.259e-09 deg/d
Q 2.699424373591052 1.4414e-08 au
  Orbit Determination Parameters
   # obs. used (total)      318  
   data-arc span      6671 days (18.26 yr)  
   first obs. used      2001-12-18  
   last obs. used      2020-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55723  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 05:02:45  

Additional Information
 Earth MOID = .905914 au 
 Jupiter MOID = 2.76255 au 
 T_jup = 3.569 
[ 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 16.7   n/a MPO407528  

201981 (2004 PX51)          Discovered 2004-Aug-08 by LINEAR at Socorro
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

[ show close-approach data ]
Alternate Designations
 2004 PX51 = 2001 YY44 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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