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(2018 XN17)
Classification: Mars-crossing Asteroid          SPK-ID: 3837456
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 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5244147929937889 0.00041372  
a 3.00129605497173 0.0030594 au
q 1.427372005590655 0.00021482 au
i 24.36360195610292 0.011907 deg
node 85.70938212893593 0.0031746 deg
peri 7.517027868998532 0.0045337 deg
M 134.7913132486735 0.20692 deg
tp 2458489.415705269495
(2019-Jan-05.91570527)
0.0069262 TDB
period 1899.160561116509
5.20
2.9039
0.00795
d
yr
n .1895574325681855 0.00028984 deg/d
Q 4.575220104352805 0.0046638 au
  Orbit Determination Parameters
   # obs. used (total)      17  
   data-arc span      20 days  
   first obs. used      2018-12-04  
   last obs. used      2018-12-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .51476  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:56:43  

Additional Information
 Earth MOID = .445795 au 
 Jupiter MOID = .70831 au 
 T_jup = 2.912 
[ 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 22.3   .22491 E2019A02 autocmod 2.6q

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