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19959 (1985 UJ3)
Classification: Main-belt Asteroid          SPK-ID: 2019959
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2408083395092654 3.484e-08  
a 2.317513088661078 4.9783e-09 au
q 1.759436609989614 8.1818e-08 au
i 1.269732600129911 3.4737e-06 deg
node 107.8828661157131 0.00014316 deg
peri 222.2909978306163 0.00014328 deg
M 22.92677997667398 5.7676e-06 deg
tp 2459118.432296135398
(2020-Sep-25.93229614)
2.0573e-05 TDB
period 1288.640333327033
3.53
4.1522e-06
1.137e-08
d
yr
n .2793642187735549 9.0016e-10 deg/d
Q 2.875589567332541 6.1771e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2566  
   data-arc span      15443 days (42.28 yr)  
   first obs. used      1978-10-28  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49231  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:10:15  

Additional Information
 Earth MOID = .746851 au 
 Jupiter MOID = 2.48695 au 
 T_jup = 3.540 
[ 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 14.55   n/a E2021B10  

19959 (1985 UJ3)          Discovered 1985-Oct-17 by Lagerkvist, C.-I. at Kvistaberg
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1985 UJ3 = 1978 UO3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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