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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 ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09061913562943362 4.2789e-08  
a 2.765031122201571 1.4584e-08 au
q 2.514466391919182 1.1913e-07 au
i 2.964741943294169 4.1374e-06 deg
node 100.4364152402372 8.7214e-05 deg
peri 301.5264682713326 8.9716e-05 deg
M 303.1154151320384 2.2354e-05 deg
tp 2459661.863114069638
(2022-Mar-23.36311407)
0.00010509 TDB
period 1679.378012282448
4.60
1.3286e-05
3.638e-08
d
yr
n .2143650788369694 1.6959e-09 deg/d
Q 3.01559585248396 1.5905e-08 au
  Orbit Determination Parameters
   # obs. used (total)      943  
   data-arc span      8301 days (22.73 yr)  
   first obs. used      1998-08-30  
   last obs. used      2021-05-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50837  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 08:39:17  

Additional Information
 Earth MOID = 1.52391 au 
 Jupiter MOID = 2.32207 au 
 T_jup = 3.332 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.75   n/a E2021B10  

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

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