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(2019 CA4)
Classification: Mars-crossing Asteroid          SPK-ID: 3838215
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5661004024787659 1.5295e-05  
a 3.13910590644636 0.00012225 au
q 1.362056789383604 5.0627e-06 au
i 9.82828476306287 0.00017787 deg
node 340.2331840257142 0.00027708 deg
peri 147.7977975864161 0.0010163 deg
M 156.8968388138813 0.0092937 deg
tp 2458511.141682449499
(2019-Jan-27.64168245)
0.001013 TDB
period 2031.455807062323
5.56
0.11867
0.0003249
d
yr
n .1772128139575893 1.0352e-05 deg/d
Q 4.916155023509115 0.00019146 au
  Orbit Determination Parameters
   # obs. used (total)      28  
   data-arc span      56 days  
   first obs. used      2018-12-17  
   last obs. used      2019-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      5  
   norm. resid. RMS      .52661  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 21:04:35  

Additional Information
 Earth MOID = .389581 au 
 Jupiter MOID = .340351 au 
 T_jup = 2.919 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458500.5 (2019-Jan-17.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5709365348613173 1.4673e-05  
q 1.338652881612394 7.1645e-06 au
tp 2458513.459962540628
(2019-Jan-29.95996254)
0.00096622 TDB
node 340.8529983871076 0.00029105 deg
peri 146.6774058564394 0.0010315 deg
i 9.771309699352839 0.00018724 deg
  Orbit Determination Parameters
   # obs. used (total)      28  
   data-arc span      56 days  
   first obs. used      2018-12-17  
   last obs. used      2019-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      5  
   norm. resid. RMS      .52661  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 21:04:35  

Additional Information
 Jupiter MOID = .340351 au 
 T_jup = 2.919 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.152935607130665E-10 1.030362094314206E-10 8.938766910690017E-9 -2.924933379769181E-9 9.499880506876614E-9 2.686863688601818E-9
q 1.030362094314206E-10 5.13293492778689E-11 3.278777426856512E-9 -1.129304851849727E-9 3.476914414655417E-9 1.241966145083658E-9
tp 8.938766910690017E-9 3.278777426856512E-9 9.33573375418343E-7 -2.730457318054164E-7 9.947207259813718E-7 1.385144228226419E-7
node -2.924933379769181E-9 -1.129304851849727E-9 -2.730457318054164E-7 8.471129369360552E-8 -2.949437409217801E-7 -4.445445913125795E-8
peri 9.499880506876614E-9 3.476914414655417E-9 9.947207259813718E-7 -2.949437409217801E-7 1.063949036702421E-6 1.479766454502062E-7
i 2.686863688601818E-9 1.241966145083658E-9 1.385144228226419E-7 -4.445445913125795E-8 1.479766454502062E-7 3.505773706571718E-8

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 22.5   .39696 MPO467459 autocmod 2.6q

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