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(2001 UC18)
Classification: Mars-crossing Asteroid          SPK-ID: 3102899
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5200941980355347 5.7752e-08  
a 2.724730260457881 1.1984e-08 au
q 1.307613860781886 1.5964e-07 au
i 6.219778567497413 5.346e-06 deg
node 277.0036255416144 5.2551e-05 deg
peri 134.096684292077 6.5423e-05 deg
M 85.81372882448193 1.0535e-05 deg
tp 2458808.904247827097
(2019-Nov-21.40424783)
4.5917e-05 TDB
period 1642.796236842072
4.50
1.0838e-05
2.967e-08
d
yr
n .2191385589560539 1.4457e-09 deg/d
Q 4.141846660133876 1.8217e-08 au
  Orbit Determination Parameters
   # obs. used (total)      360  
   data-arc span      6669 days (18.26 yr)  
   first obs. used      2001-10-25  
   last obs. used      2020-01-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39802  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 21:12:59  

Additional Information
 Earth MOID = .329864 au 
 Jupiter MOID = 1.32671 au 
 T_jup = 3.139 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 19.0   n/a E2019Y28  

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