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71052 (1999 XP91)
Classification: Main-belt Asteroid          SPK-ID: 2071052
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09217266973781926 4.6367e-08  
a 2.763234614696169 1.494e-08 au
q 2.508539903147669 1.2794e-07 au
i 2.966702242893114 4.2678e-06 deg
node 100.4536472787196 9.9731e-05 deg
peri 301.85950305884 0.00010222 deg
M 217.9916242814677 2.2713e-05 deg
tp 2459662.314879379946
(2022-Mar-23.81487938)
0.00010723 TDB
period 1677.74157947564
4.59
1.3606e-05
3.725e-08
d
yr
n .2145741658930061 1.7402e-09 deg/d
Q 3.01792932624467 1.6317e-08 au
  Orbit Determination Parameters
   # obs. used (total)      896  
   data-arc span      7576 days (20.74 yr)  
   first obs. used      1998-08-30  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51208  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:19:58  

Additional Information
 Earth MOID = 1.51867 au 
 Jupiter MOID = 2.32092 au 
 T_jup = 3.332 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456556.5 (2013-Sep-21.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0929140926639514 4.637e-08  
q 2.507544485000718 1.2818e-07 au
tp 2456315.119895624968
(2013-Jan-22.61989562)
0.00010279 TDB
node 100.4646313447042 9.9695e-05 deg
peri 303.359832746651 0.00010214 deg
i 2.966947188578282 4.2696e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      896  
   data-arc span      7576 days (20.74 yr)  
   first obs. used      1998-08-30  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51208  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:19:58  

Additional Information
 Jupiter MOID = 2.32092 au 
 T_jup = 3.332 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.150157422791243E-15 -5.908816585177007E-15 -4.318350092331054E-13 -6.233131395859997E-15 -1.058476995702636E-13 -1.551437402466368E-16
q -5.908816585177007E-15 1.643101047300192E-14 1.150088734974187E-12 1.645147551326093E-14 2.875197466985068E-13 5.455543014192054E-16
tp -4.318350092331054E-13 1.150088734974187E-12 1.05648118174712E-8 -8.778462915663205E-12 2.319419425243919E-9 1.446198684146338E-13
node -6.233131395859997E-15 1.645147551326093E-14 -8.778462915663205E-12 9.939170203964273E-9 -9.927441834726674E-9 -7.934173497495366E-11
peri -1.058476995702636E-13 2.875197466985068E-13 2.319419425243919E-9 -9.927441834726674E-9 1.043201940326456E-8 7.926197880864913E-11
i -1.551437402466368E-16 5.455543014192054E-16 1.446198684146338E-13 -7.934173497495366E-11 7.926197880864913E-11 1.822973223863716E-11

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 14.8   n/a MPO474590  

71052 (1999 XP91)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 XP91 = 1998 RJ39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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