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213421 (2001 XO55)
Classification: Main-belt Asteroid          SPK-ID: 2213421
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1474493064392265 4.7548e-08  
a 2.183788116758706 6.7347e-09 au
q 1.86179007353241 1.0701e-07 au
i 1.584575960803841 5.5498e-06 deg
node 182.2866694290292 0.00011251 deg
peri 223.6831139803301 0.00011417 deg
M 344.5891841435528 1.878e-05 deg
tp 2459250.958844942493
(2021-Feb-05.45884494)
6.158e-05 TDB
period 1178.729559064706
3.23
5.4527e-06
1.493e-08
d
yr
n .3054135677106898 1.4128e-09 deg/d
Q 2.505786159985002 7.7277e-09 au
  Orbit Determination Parameters
   # obs. used (total)      493  
   data-arc span      6998 days (19.16 yr)  
   first obs. used      2001-11-09  
   last obs. used      2021-01-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52057  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:42:38  

Additional Information
 Earth MOID = .870593 au 
 Jupiter MOID = 2.85716 au 
 T_jup = 3.664 
[ 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 17.5   n/a MPO475755  

213421 (2001 XO55)          Discovered 2001-Dec-10 by LINEAR at Socorro
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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