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415713 (1998 XX2)
Classification: Aten [NEO, PHA]          SPK-ID: 2415713
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3672966227031575 1.6407e-07  
a .7414279490028893 2.1846e-09 au
q .4691039673563991 1.2146e-07 au
i 6.97267208164975 2.3145e-05 deg
node 74.43201523089938 4.433e-05 deg
peri 153.025810272924 5.6647e-05 deg
M 102.1758938369433 5.4177e-05 deg
tp 2458934.316793928346
(2020-Mar-25.81679393)
3.4996e-05 TDB
period 233.185669252063
0.64
1.0306e-06
2.822e-09
d
yr
n 1.543834152221664 6.8233e-09 deg/d
Q 1.013751930649379 2.987e-09 au
  Orbit Determination Parameters
   # obs. used (total)      124  
   data-arc span      7718 days (21.13 yr)  
   first obs. used      1998-12-08  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62737  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-25 05:50:51  

Additional Information
 Earth MOID = .0155846 au 
 Jupiter MOID = 3.9694 au 
 T_jup = 7.715 
[ 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 19.9   n/a MPO251988  

415713 (1998 XX2)          Discovered 1998-Dec-08 by LINEAR at Socorro
Reference: Last Updated: 2015-01-07

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