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117145 (2004 PA91)
Classification: Main-belt Asteroid          SPK-ID: 2117145
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1969903827782712 3.8682e-08  
a 2.346266434150594 1.1013e-08 au
q 1.884074511187459 9.0099e-08 au
i 7.812368313777939 4.6856e-06 deg
node 173.8397983216234 3.1621e-05 deg
peri 222.1064733318554 3.3743e-05 deg
M 118.8344104048828 1.3857e-05 deg
tp 2458567.184590843206
(2019-Mar-24.68459084)
4.8943e-05 TDB
period 1312.696774990993
3.59
9.2424e-06
2.53e-08
d
yr
n .2742445984926489 1.9309e-09 deg/d
Q 2.808458357113729 1.3183e-08 au
  Orbit Determination Parameters
   # obs. used (total)      483  
   data-arc span      7203 days (19.72 yr)  
   first obs. used      2000-08-02  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51218  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:09:09  

Additional Information
 Earth MOID = .898123 au 
 Jupiter MOID = 2.64123 au 
 T_jup = 3.522 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO449685  

117145 (2004 PA91)          Discovered 2004-Aug-10 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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