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160881 (2001 PJ12)
Classification: Main-belt Asteroid          SPK-ID: 2160881
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1893277406896249 7.1402e-08  
a 3.177390697890332 2.4326e-08 au
q 2.575822495770525 2.2852e-07 au
i 19.11038125518499 8.7533e-06 deg
node 5.527129175114517 1.6171e-05 deg
peri 15.1210100462641 2.2602e-05 deg
M 73.93690155909849 1.7811e-05 deg
tp 2458575.623116747575
(2019-Apr-02.12311675)
9.9607e-05 TDB
period 2068.73259151405
5.66
2.3758e-05
6.505e-08
d
yr
n .1740195912592675 1.9985e-09 deg/d
Q 3.77895890001014 2.8932e-08 au
  Orbit Determination Parameters
   # obs. used (total)      675  
   data-arc span      10701 days (29.30 yr)  
   first obs. used      1990-10-09  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53248  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 13:26:51  

Additional Information
 Earth MOID = 1.58146 au 
 Jupiter MOID = 1.71235 au 
 T_jup = 3.088 
[ 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 14.4   n/a MPO454066  

160881 (2001 PJ12)          Discovered 2001-Aug-12 by NEAT at Palomar
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

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