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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09284414317716451 4.6948e-08  
a 2.761531644010627 1.5627e-08 au
q 2.505139604665834 1.2993e-07 au
i 2.966721011753108 4.3274e-06 deg
node 100.4544585287665 0.00010293 deg
peri 302.0426916673379 0.00010543 deg
M 131.8996876380028 2.3222e-05 deg
tp 2457986.363754912256
(2017-Aug-20.86375491)
0.00010715 TDB
period 1676.190840105431
4.59
1.4227e-05
3.895e-08
d
yr
n .2147726806437842 1.823e-09 deg/d
Q 3.01792368335542 1.7077e-08 au
  Orbit Determination Parameters
   # obs. used (total)      889  
   data-arc span      7542 days (20.65 yr)  
   first obs. used      1998-08-30  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50829  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:39:57  

Additional Information
 Earth MOID = 1.51475 au 
 Jupiter MOID = 2.32206 au 
 T_jup = 3.333 
[ 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 14.7   n/a MPO293827  

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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