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JPL Small-Body Database Browser
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305309 (2008 AP40)
Classification: Main-belt Asteroid          SPK-ID: 2305309
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03101167355973522 1.0867e-07  
a 3.044751016354284 5.3086e-08 au
q 2.950328191764433 3.2092e-07 au
i 4.967479356775256 1.1697e-05 deg
node 345.0207742751958 9.0724e-05 deg
peri 199.1598680522433 0.00016031 deg
M 356.5297874844593 0.00012975 deg
tp 2458619.205945902682
(2019-May-15.70594590)
0.00069938 TDB
period 1940.555656118443
5.31
5.0751e-05
1.389e-07
d
yr
n .1855138752990381 4.8517e-09 deg/d
Q 3.139173840944135 5.4732e-08 au
  Orbit Determination Parameters
   # obs. used (total)      126  
   data-arc span      5849 days (16.01 yr)  
   first obs. used      2003-03-31  
   last obs. used      2019-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .73329  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:15:55  

Additional Information
 Earth MOID = 1.95297 au 
 Jupiter MOID = 1.83059 au 
 T_jup = 3.232 
[ 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 16.5   n/a MPO294596  

305309 (2008 AP40)          Discovered 2008-Jan-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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