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214981 (2008 AP72)
Classification: Main-belt Asteroid          SPK-ID: 2214981
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08282896640535881 4.9192e-08  
a 3.102778347176644 3.3567e-08 au
q 2.845778423695075 1.575e-07 au
i 17.7308777903963 5.6967e-06 deg
node 110.1011802300043 1.7468e-05 deg
peri 185.3739950473308 3.9904e-05 deg
M 287.0266891665886 3.7098e-05 deg
tp 2459405.156112536532
(2021-Jul-09.65611254)
0.00020851 TDB
period 1996.294245792292
5.47
3.2395e-05
8.869e-08
d
yr
n .1803341369934784 2.9264e-09 deg/d
Q 3.359778270658213 3.6347e-08 au
  Orbit Determination Parameters
   # obs. used (total)      415  
   data-arc span      9817 days (26.88 yr)  
   first obs. used      1993-06-13  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53856  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 09:13:40  

Additional Information
 Earth MOID = 1.83003 au 
 Jupiter MOID = 1.84693 au 
 T_jup = 3.143 
[ 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 14.9   n/a MPO437028  
diameter diameter 5.367 km 0.412 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.067   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

214981 (2008 AP72)          Discovered 2008-Jan-14 by Spacewatch at Kitt Peak
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 2008 AP72 = 1993 LU 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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