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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer 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.


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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
(2019-Mar-13.41544163)
9.5932e-05 TDB
period 1171.054905029441
3.21
4.4938e-06
1.23e-08
d
yr
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456927.5 (2014-Sep-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06405886853831792 3.4871e-08  
q 2.035454143855738 7.5334e-08 au
tp 2457384.898702119047
(2015-Dec-28.39870212)
9.6091e-05 TDB
node 344.6866217197747 4.8494e-05 deg
peri 97.12092693852937 5.7034e-05 deg
i 4.629518876269327 3.3371e-06 deg
  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
 Jupiter MOID = 2.79485 au 
 T_jup = 3.679 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.215972110996775E-15 -2.620750638467617E-15 -1.221831710202424E-12 -7.386042342593956E-15 -3.954084954578177E-13 -4.37954268874021E-16
q -2.620750638467617E-15 5.675266434729204E-15 2.726388420201446E-12 1.629513804974116E-14 8.772731477646263E-13 1.025609935243706E-15
tp -1.221831710202424E-12 2.726388420201446E-12 9.23345327103654E-9 1.355557971039953E-12 2.899513412206619E-9 -9.388209923071288E-13
node -7.386042342593956E-15 1.629513804974116E-14 1.355557971039953E-12 2.351683880926174E-9 -2.342984128714287E-9 4.739415397492477E-11
peri -3.954084954578177E-13 8.772731477646263E-13 2.899513412206619E-9 -2.342984128714287E-9 3.25286406259978E-9 -4.75548708676199E-11
i -4.37954268874021E-16 1.025609935243706E-15 -9.388209923071288E-13 4.739415397492477E-11 -4.75548708676199E-11 1.113654852316647E-11

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] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
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] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

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
(days_HH:MM)
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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