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JPL Small-Body Database Browser
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243400 (2009 AP1)
Classification: Main-belt Asteroid          SPK-ID: 2243400
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1499564149006105 6.2523e-08  
a 2.351537061178421 2.5073e-08 au
q 1.998908993978188 1.3788e-07 au
i 23.11246564424973 6.4115e-06 deg
node 295.1193602061215 1.6995e-05 deg
peri 359.1757583356194 3.0924e-05 deg
M 114.9276329265123 2.4448e-05 deg
tp 2458180.017302394311
(2018-Mar-02.51730239)
8.7467e-05 TDB
period 1317.122499467472
3.61
2.1066e-05
5.768e-08
d
yr
n .2733230964815741 4.3715e-09 deg/d
Q 2.704165128378655 2.8833e-08 au
  Orbit Determination Parameters
   # obs. used (total)      270  
   data-arc span      6652 days (18.21 yr)  
   first obs. used      2000-09-25  
   last obs. used      2018-12-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56636  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:09:15  

Additional Information
 Earth MOID = .982196 au 
 Jupiter MOID = 2.51686 au 
 T_jup = 3.435 
[ 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 16.0   n/a MPO454786  
diameter diameter 1.888 km 0.354 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.237   0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243400 (2009 AP1)          Discovered 2009-Jan-03 by Farra d'Isonzo at Farra d'Isonzo
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

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