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41222 (1999 XH15)
Classification: Main-belt Asteroid          SPK-ID: 2041222
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2889434689394964 3.9708e-08  
a 3.072306521205723 1.5425e-08 au
q 2.184583617323105 1.2309e-07 au
i 1.036944554376221 5.2111e-06 deg
node 214.4703511383779 0.00020193 deg
peri 115.3246720414701 0.00020216 deg
M 357.9903440407891 7.4802e-06 deg
tp 2459011.480306306495
(2020-Jun-10.98030631)
4.0858e-05 TDB
period 1966.958698687059
5.39
1.4813e-05
4.056e-08
d
yr
n .183023670115849 1.3784e-09 deg/d
Q 3.960029425088341 1.9882e-08 au
  Orbit Determination Parameters
   # obs. used (total)      930  
   data-arc span      25639 days (70.20 yr)  
   first obs. used      1950-08-14  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50288  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 00:12:59  

Additional Information
 Earth MOID = 1.17392 au 
 Jupiter MOID = 1.42284 au 
 T_jup = 3.165 
[ 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 14.8   n/a MPO412468  

41222 (1999 XH15)          Discovered 1999-Dec-02 by Sarounova, L. at Ondrejov
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 XH15 = 1993 QR2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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