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(2019 AU4)
Classification: Mars-crossing Asteroid          SPK-ID: 3837670
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458488.5 (2019-Jan-05.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5115811601256144 0.11555  
a 2.719587411985126 0.73196 au
q 1.328297728698758 0.043298 au
i 20.59927070775541 1.3448 deg
node 66.54135949645708 2.9873 deg
peri 75.44350592874163 2.4496 deg
M 357.1119077789476 1.5051 deg
tp 2458501.642001618846
(2019-Jan-18.14200162)
1.675 TDB
period 1638.147337643065
4.49
661.35
1.811
d
yr
n .2197604523888316 0.088721 deg/d
Q 4.110877095271494 1.1064 au
  Orbit Determination Parameters
   # obs. used (total)      14  
   data-arc span      3 days  
   first obs. used      2019-01-04  
   last obs. used      2019-01-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      9  
   norm. resid. RMS      .42485  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:58:42  

Additional Information
 Earth MOID = .501809 au 
 Jupiter MOID = 1.75559 au 
 T_jup = 3.076 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 20.048   .35315 2 autocmod 2.9c
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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