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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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08497788530710729 5.843e-08  
a 2.377247281278682 1.551e-08 AU
q 2.17523383446355 1.3898e-07 AU
i 5.785590012022262 5.8169e-06 deg
node 295.1067332169729 6.6924e-05 deg
peri 130.6873748669155 8.125e-05 deg
M 169.1772561231053 4.6149e-05 deg
tp 2456371.356893995164
(2013-Mar-19.85689400)
0.00016922 JED
period 1338.782312422243
3.67
1.3102e-05
3.587e-08
d
yr
n .2689010727581665 2.6316e-09 deg/d
Q 2.579260728093815 1.6828e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      867  
   data-arc span      8654 days (23.69 yr)  
   first obs. used      1990-10-10  
   last obs. used      2014-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54929  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 15:27:36  

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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