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91867 (1999 UC30)
Classification: Main-belt Asteroid          SPK-ID: 2091867
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04107683629794688 4.455e-08  
a 3.032870461077279 2.5105e-08 au
q 2.908289737634729 1.3612e-07 au
i 2.757459546075279 4.5347e-06 deg
node 49.8213451325046 0.0001087 deg
peri 46.70059634512129 0.00012481 deg
M 249.4142552474167 6.356e-05 deg
tp 2459593.119400887955
(2022-Jan-13.61940089)
0.00034315 TDB
period 1929.208731170391
5.28
2.3954e-05
6.558e-08
d
yr
n .1866050024465726 2.317e-09 deg/d
Q 3.157451184519829 2.6136e-08 au
  Orbit Determination Parameters
   # obs. used (total)      370  
   data-arc span      9950 days (27.24 yr)  
   first obs. used      1991-02-20  
   last obs. used      2018-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62437  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-31 15:41:17  

Additional Information
 Earth MOID = 1.92598 au 
 Jupiter MOID = 1.90859 au 
 T_jup = 3.240 
[ 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 MPO453359  

91867 (1999 UC30)          Discovered 1999-Oct-31 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

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