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27952 Atapuerca (1997 PR4)
Classification: Main-belt Asteroid          SPK-ID: 2027952
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0849778844834274 5.6981e-08  
a 2.377247281149782 1.5367e-08 AU
q 2.175233836303694 1.3596e-07 AU
i 5.78559010762663 5.8064e-06 deg
node 295.1067369217716 6.54e-05 deg
peri 130.687371811669 7.9307e-05 deg
M 169.1772556294044 4.5406e-05 deg
tp 2456371.356895882329
(2013-Mar-19.85689588)
0.00016626 JED
period 1338.782312313355
3.67
1.2981e-05
3.554e-08
d
yr
n .2689010727800373 2.6074e-09 deg/d
Q 2.57926072599587 1.6673e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      875  
   data-arc span      9026 days (24.71 yr)  
   first obs. used      1990-10-10  
   last obs. used      2015-06-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54686  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:41:45  

Additional Information
 Earth MOID = 1.19396 AU 
 T_jup = 3.529 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2 mag n/a MPO257059  

27952 Atapuerca           Discovered 1997 Aug. 11 by A. Lopez and R. Pacheco at Observatori Astronomic de Mallorca.
Atapuerca is a small mountain chain in the Spanish province of Burgos. Important human fossil deposits have been discovered there, among the most ancient found in Europe.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20021120/MPCPages.arcLast Updated: 2003-10-02
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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