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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06873520498725318 2.8409e-08  
a 2.357668470957641 7.4829e-09 au
q 2.195613645314384 6.6161e-08 au
i 6.564204528334916 3.6173e-06 deg
node 354.1942612288912 2.9223e-05 deg
peri 241.2438417095071 4.1159e-05 deg
M 148.2108956541446 2.8757e-05 deg
tp 2458852.122506710531
(2020-Jan-03.62250671)
0.00010584 TDB
period 1322.277263889732
3.62
6.2951e-06
1.724e-08
d
yr
n .27225757398338 1.2962e-09 deg/d
Q 2.519723296600898 7.9972e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1972  
   data-arc span      16002 days (43.81 yr)  
   first obs. used      1977-09-09  
   last obs. used      2021-07-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48022  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:14:36  

Additional Information
 Earth MOID = 1.19417 au 
 Jupiter MOID = 2.4792 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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