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9657 Ucka (1996 DG2)
Classification: Main-belt Asteroid          SPK-ID: 2009657
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1783836673155791 3.1766e-08  
a 3.13507595275068 1.5834e-08 au
q 2.575829606986131 9.8925e-08 au
i .8928628329511836 4.2575e-06 deg
node 142.9081140162248 0.00024055 deg
peri 111.3420828692781 0.00024085 deg
M 64.69523833605227 1.2022e-05 deg
tp 2458636.131903763054
(2019-Jun-01.63190376)
6.7397e-05 TDB
period 2027.5451179875
5.55
1.536e-05
4.205e-08
d
yr
n .177554618541524 1.3451e-09 deg/d
Q 3.69432229851523 1.8658e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2068  
   data-arc span      14192 days (38.86 yr)  
   first obs. used      1981-09-25  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50995  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:10:27  

Additional Information
 Earth MOID = 1.56134 au 
 Jupiter MOID = 1.35853 au 
 T_jup = 3.187 
[ 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 12.8   n/a MPO347602  
diameter diameter 13.747 km 3.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.064   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

9657 Učka           Discovered 1996 Feb. 24 by K. Korlevic and D. Matkovic at Visnjan.
Učka is the highest mountain on the Istrian peninsula, which extends into the northern Adriatic sea.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020724/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1996 DG2 = 1981 SZ4 = 1991 JS3 = 1992 RB5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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