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48455 (1991 PK13)
Classification: Main-belt Asteroid          SPK-ID: 2048455
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2109015627675653 7.9318e-08  
a 2.350965799297675 2.0938e-08 AU
q 1.855143438212697 1.8779e-07 AU
i 6.534909111509226 8.5488e-06 deg
node 321.2269469827352 6.0279e-05 deg
peri 14.51275498184931 6.297e-05 deg
M 167.0621886050622 2.2135e-05 deg
tp 2456389.496694724435
(2013-Apr-06.99669472)
7.5925e-05 JED
period 1316.642573258723
3.60
1.759e-05
4.816e-08
d
yr
n .2734227248242406 3.6528e-09 deg/d
Q 2.846788160382652 2.5354e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      399  
   data-arc span      8642 days (23.66 yr)  
   first obs. used      1991-07-17  
   last obs. used      2015-03-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56158  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 18:13:02  

Additional Information
 Earth MOID = .846613 AU 
 T_jup = 3.519 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5 mag n/a MPO279997  

48455 (1991 PK13)          Discovered 1991-Aug-05 by Holt, H. E. at Palomar
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

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