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79778 (1998 UC21)
Classification: Main-belt Asteroid          SPK-ID: 2079778
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2365819878058473 3.7728e-08  
a 2.587123080922225 1.122e-08 au
q 1.975056359739257 9.4221e-08 au
i 3.896532381982572 3.7758e-06 deg
node 220.9031998910412 8.5024e-05 deg
peri 192.1716688020037 8.5889e-05 deg
M 62.16686660412538 1.4365e-05 deg
tp 2458738.029474921738
(2019-Sep-11.52947492)
5.9649e-05 TDB
period 1519.931664400536
4.16
9.8876e-06
2.707e-08
d
yr
n .2368527536019094 1.5408e-09 deg/d
Q 3.199189802105193 1.3874e-08 au
  Orbit Determination Parameters
   # obs. used (total)      687  
   data-arc span      7854 days (21.50 yr)  
   first obs. used      1998-10-18  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55178  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:43:34  

Additional Information
 Earth MOID = .986392 au 
 Jupiter MOID = 2.17687 au 
 T_jup = 3.378 
[ 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 15.8   n/a MPO502636  

79778 (1998 UC21)          Discovered 1998-Oct-29 by Korlevic, K. at Visnjan
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

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