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134714 (1999 XJ254)
Classification: Main-belt Asteroid          SPK-ID: 2134714
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01370408390709933 5.1431e-08  
a 2.5265270493052 1.6137e-08 au
q 2.491903310627965 1.3048e-07 au
i 2.257205555697113 4.9681e-06 deg
node 278.384252696061 0.00014591 deg
peri 209.5274457036644 0.00024152 deg
M 60.08691873857761 0.00019336 deg
tp 2458955.671603404984
(2020-Apr-16.17160340)
0.00078737 TDB
period 1466.84544031409
4.02
1.4053e-05
3.848e-08
d
yr
n .245424630370678 2.3513e-09 deg/d
Q 2.561150787982434 1.6358e-08 au
  Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      10635 days (29.12 yr)  
   first obs. used      1992-02-01  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53122  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:09:36  

Additional Information
 Earth MOID = 1.50633 au 
 Jupiter MOID = 2.42075 au 
 T_jup = 3.452 
[ 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 16.49   n/a E2021B55  

134714 (1999 XJ254)          Discovered 1999-Dec-12 by Spacewatch at Kitt Peak
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Alternate Designations
 1999 XJ254 = 2004 AN 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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