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21883 (1999 UC25)
Classification: Main-belt Asteroid          SPK-ID: 2021883
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06859074820828072 2.9282e-08  
a 2.358438946000502 7.6891e-09 au
q 2.196671854090778 6.8045e-08 au
i 6.563276915139971 3.652e-06 deg
node 354.1941837801602 2.9521e-05 deg
peri 241.5048701967566 4.1466e-05 deg
M 94.59375769599012 2.8836e-05 deg
tp 2458852.887519301575
(2020-Jan-04.38751930)
0.00010614 TDB
period 1322.925487891234
3.62
6.4696e-06
1.771e-08
d
yr
n .2721241697246655 1.3308e-09 deg/d
Q 2.520206037910225 8.2165e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1941  
   data-arc span      15825 days (43.33 yr)  
   first obs. used      1977-09-09  
   last obs. used      2021-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48085  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:13:32  

Additional Information
 Earth MOID = 1.19351 au 
 Jupiter MOID = 2.48014 au 
 T_jup = 3.541 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.51   n/a E2021B10  

21883 (1999 UC25)          Discovered 1999-Oct-28 by CSS at Catalina
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 UC25 = 1977 RO14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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