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71131 (1999 XY176)
Classification: Main-belt Asteroid          SPK-ID: 2071131
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2075499052030013 4.5986e-08  
a 2.648258144885826 1.3605e-08 au
q 2.098612417961697 1.2152e-07 au
i 12.5253147879691 5.4049e-06 deg
node 76.70659752259448 2.0679e-05 deg
peri 29.98529638719074 2.3433e-05 deg
M 269.8482571916562 1.1524e-05 deg
tp 2459394.694470494796
(2021-Jun-29.19447049)
5.2084e-05 TDB
period 1574.12386003249
4.31
1.213e-05
3.321e-08
d
yr
n .2286986489059187 1.7623e-09 deg/d
Q 3.197903871809956 1.6428e-08 au
  Orbit Determination Parameters
   # obs. used (total)      696  
   data-arc span      10450 days (28.61 yr)  
   first obs. used      1990-11-18  
   last obs. used      2019-06-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53557  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:21:19  

Additional Information
 Earth MOID = 1.12462 au 
 Jupiter MOID = 2.02109 au 
 T_jup = 3.327 
[ 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 14.9   n/a MPO449449  

71131 (1999 XY176)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XY176 = 1990 WT 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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