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JPL Small-Body Database Browser
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27952 Atapuerca (1997 PR4)
Classification: Main-belt Asteroid          SPK-ID: 2027952
[ 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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08489181555858817 3.6099e-08  
a 2.377299688762932 8.3304e-09 au
q 2.17548640205698 8.8875e-08 au
i 5.789928554235201 4.072e-06 deg
node 295.004156039603 4.0078e-05 deg
peri 131.6730285094654 4.8656e-05 deg
M 345.8936683500195 2.8048e-05 deg
tp 2459052.960921700619
(2020-Jul-22.46092170)		 0.0001044 TDB
period 1338.826583752487
3.67		 7.0372e-06
1.927e-08		 d
yr
n .2688921809357755 1.4134e-09 deg/d
Q 2.579112975468884 9.0376e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1469  
   data-arc span      10678 days (29.23 yr)  
   first obs. used      1990-10-10  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54197  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 02:58:22  

Additional Information
 Earth MOID = 1.19461 au 
 Jupiter MOID = 2.6283 au 
 T_jup = 3.529 
[ 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 14.3   n/a MPO449168  
diameter diameter 2.753 km 0.291 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.534   0.112 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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