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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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06873520500840773 2.8409e-08  
a 2.35766847136978 7.4444e-09 au
q 2.195613645648319 6.6156e-08 au
i 6.564204724041326 3.6058e-06 deg
node 354.19425938 2.9095e-05 deg
peri 241.2438415521152 4.0906e-05 deg
M 148.2108973813871 2.8583e-05 deg
tp 2458852.122500223640
(2020-Jan-03.62250022)
0.00010517 TDB
period 1322.277264236448
3.62
6.2627e-06
1.715e-08
d
yr
n .2722575739119909 1.2895e-09 deg/d
Q 2.519723297091241 7.9561e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1976  
   data-arc span      16016 days (43.85 yr)  
   first obs. used      1977-09-09  
   last obs. used      2021-07-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47996  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 15:03:27  

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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