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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08464624636909354 3.6194e-08  
a 2.377522671323573 8.4167e-09 au
q 2.176274301538612 8.9033e-08 au
i 5.789418877289925 4.0972e-06 deg
node 295.0040232979438 4.0116e-05 deg
peri 131.5744988045865 4.8735e-05 deg
M 238.414302097834 2.795e-05 deg
tp 2459052.736299183344
(2020-Jul-22.23629918)
0.00010477 TDB
period 1339.014954184867
3.67
7.1104e-06
1.947e-08
d
yr
n .268854353623819 1.4277e-09 deg/d
Q 2.578771041108533 9.1292e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1454  
   data-arc span      10642 days (29.14 yr)  
   first obs. used      1990-10-10  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5344  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 01:43:07  

Additional Information
 Earth MOID = 1.19514 au 
 Jupiter MOID = 2.62985 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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