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JPL Small-Body Database Browser
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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 
[ 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 14.8   n/a MPO474590  

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

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