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70954 (1999 XK2)
Classification: Main-belt Asteroid          SPK-ID: 2070954
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1373513882633312 4.2911e-08  
a 3.172999846482571 1.9105e-08 au
q 2.737183912608853 1.3162e-07 au
i 2.488979349248929 4.1958e-06 deg
node 116.6180767059339 0.00010716 deg
peri 91.28390301942599 0.00010822 deg
M 135.2846238596747 1.5354e-05 deg
tp 2458224.700596714503
(2018-Apr-16.20059671)
8.6651e-05 TDB
period 2064.445886122821
5.65
1.8645e-05
5.105e-08
d
yr
n .1743809331210449 1.5749e-09 deg/d
Q 3.608815780356288 2.1729e-08 au
  Orbit Determination Parameters
   # obs. used (total)      949  
   data-arc span      7548 days (20.67 yr)  
   first obs. used      1999-12-02  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59146  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 06:30:36  

Additional Information
 Earth MOID = 1.73394 au 
 Jupiter MOID = 1.3545 au 
 T_jup = 3.185 
[ 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 14.3   n/a MPO400671  

70954 (1999 XK2)          Discovered 1999-Dec-02 by Spacewatch at Kitt Peak
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XK2 = 2001 FE23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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