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216480 (1999 UH25)
Classification: Main-belt Asteroid          SPK-ID: 2216480
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1486878767786587 5.0472e-08  
a 3.060163343741498 2.3483e-08 au
q 2.605154153564694 1.6441e-07 au
i 10.00288870616692 4.0641e-06 deg
node 248.2221662794732 2.8633e-05 deg
peri 87.64883201602593 3.4764e-05 deg
M 25.0304415044008 1.6367e-05 deg
tp 2459064.549330977492
(2020-Aug-03.04933098)
8.9401e-05 TDB
period 1955.30873234889
5.35
2.2507e-05
6.162e-08
d
yr
n .1841141473180739 2.1193e-09 deg/d
Q 3.515172533918303 2.6975e-08 au
  Orbit Determination Parameters
   # obs. used (total)      796  
   data-arc span      7800 days (21.36 yr)  
   first obs. used      1999-10-03  
   last obs. used      2021-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45966  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:58  

Additional Information
 Earth MOID = 1.61837 au 
 Jupiter MOID = 1.94723 au 
 T_jup = 3.194 
[ 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 14.75   n/a E2021B55  

216480 (1999 UH25)          Discovered 1999-Oct-28 by CSS at Catalina
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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