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3851 Alhambra (1986 UZ)
Classification: Main-belt Asteroid          SPK-ID: 2003851
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06451502997209704 3.4961e-08  
a 2.174298771188289 5.5624e-09 au
q 2.034023820796783 7.5554e-08 au
i 4.627519312305858 3.3369e-06 deg
node 344.6528949132279 4.8532e-05 deg
peri 97.04627868718147 5.6933e-05 deg
M 136.6720213754805 2.9596e-05 deg
tp 2458555.915441633208
9.5932e-05 TDB
period 1171.054905029441
n .3074151335294986 1.1797e-09 deg/d
Q 2.314573721579796 5.9213e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2531  
   data-arc span      25606 days (70.11 yr)  
   first obs. used      1950-06-25  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41785  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:08:36  

Additional Information
 Earth MOID = 1.05598 au 
 Jupiter MOID = 2.79485 au 
 T_jup = 3.679 
[ 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 MPO452218  
diameter diameter 6.504 km 0.390 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 53. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Higgins, D.; Oey, J. (2007) Minor Planet Bull. 34, 79-80.]
geometric albedo albedo 0.218   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

3851 Alhambra (1986 UZ)          Discovered 1986-Oct-30 by Seki, T. at Geisei
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2095-Jan-19 01:04 < 00:01 Vesta 0.0490265868363477 0.049023019789232 0.0490301548154282 4.50969861517052 4.50969807700553 2486261.544264399 0.894837670192767 382.892553220211 24.567001802386 -62.6175969240078 264355.937042505 T 27 CATAB v2.0f-lin.ifort 2020-Aug-24 23:08:48 2020-Aug-24 23:08

Alternate Designations
 1986 UZ = 1950 MC = 1960 RA = 1965 CD = 1973 SE4 = 1973 ST2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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