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117442 (2005 AP39)
Classification: Main-belt Asteroid          SPK-ID: 2117442
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1442963450159158 5.2783e-08  
a 2.540369520282095 1.8226e-08 au
q 2.173803483515553 1.3168e-07 au
i 7.4347226377273 3.6584e-06 deg
node 154.1036492588366 4.5456e-05 deg
peri 111.5632901853521 4.7981e-05 deg
M 158.7626373117593 1.6434e-05 deg
tp 2458348.286820035741
(2018-Aug-17.78682004)
6.6919e-05 TDB
period 1478.91688348605
4.05
1.5916e-05
4.358e-08
d
yr
n .2434213876519017 2.6196e-09 deg/d
Q 2.906935557048636 2.0856e-08 au
  Orbit Determination Parameters
   # obs. used (total)      681  
   data-arc span      6823 days (18.68 yr)  
   first obs. used      2001-02-22  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56129  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 11:01:09  

Additional Information
 Earth MOID = 1.17129 au 
 Jupiter MOID = 2.21063 au 
 T_jup = 3.419 
[ 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 15.7   n/a MPO439764  
diameter diameter 3.985 km 0.158 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.064   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

117442 (2005 AP39)          Discovered 2005-Jan-13 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2005 AP39 = 2003 WX167 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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