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JPL Small-Body Database Browser
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117993 Zambujal (1064 T-2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2117993
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2678306824511516 4.8949e-08  
a 4.020584928115089 4.4802e-08 au
q 2.943748922965211 2.0397e-07 au
i 1.85904175058333 5.4905e-06 deg
node 341.1978213108257 0.00013959 deg
peri 350.5029821568957 0.0001399 deg
M 260.8593585456346 1.2838e-05 deg
tp 2459411.426534077366
(2021-Jul-15.92653408)
0.00011561 TDB
period 2944.640542821475
8.06
4.9218e-05
1.348e-07
d
yr
n .1222560087605999 2.0435e-09 deg/d
Q 5.097420933264968 5.6801e-08 au
  Orbit Determination Parameters
   # obs. used (total)      707  
   data-arc span      16669 days (45.64 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53566  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:55:16  

Additional Information
 Earth MOID = 1.93239 au 
 Jupiter MOID = .28647 au 
 T_jup = 2.987 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.2   n/a MPO436566  
diameter diameter 10.998 km 1.102 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.077   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

117993 Zambujal           Discovered 1973 Sept. 29 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Zambujal is the site of a Chalcolithic fortification of the third millennium B.C. situated close to a former inlet of the Atlantic Ocean near Torres Vedras, Portugal. Excavation of the ruins lasted from 1964 to 1973.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060809/MPCPages.arcLast Updated: 2007-08-08

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Alternate Designations
 1064 T-2 = 1999 XY138 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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