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226274 (2003 AP78)
Classification: Main-belt Asteroid          SPK-ID: 2226274
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1860636324512734 9.6268e-08  
a 2.40307110715593 2.5477e-08 au
q 1.955946967919794 2.1895e-07 au
i 2.05532797454907 9.0562e-06 deg
node 211.5022640370402 0.00027717 deg
peri 210.5101585485706 0.00027985 deg
M 282.5022970657803 3.7292e-05 deg
tp 2459293.410330496438
(2021-Mar-19.91033050)
0.00014303 TDB
period 1360.656058002416
3.73
2.1638e-05
5.924e-08
d
yr
n .2645782509714596 4.2075e-09 deg/d
Q 2.850195246392065 3.0217e-08 au
  Orbit Determination Parameters
   # obs. used (total)      117  
   data-arc span      5545 days (15.18 yr)  
   first obs. used      2003-01-10  
   last obs. used      2018-03-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58837  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 17:21:21  

Additional Information
 Earth MOID = .969223 au 
 Jupiter MOID = 2.47231 au 
 T_jup = 3.500 
[ 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 17.6   n/a MPO198842  

226274 (2003 AP78)          Discovered 2003-Jan-10 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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