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523970 (1999 AP30)
Classification: Main-belt Asteroid          SPK-ID: 2523970
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08795474852577975 7.4835e-08  
a 3.042864621419493 7.1203e-08 au
q 2.77523022884455 2.1882e-07 au
i 17.73913835968239 1.059e-05 deg
node 298.6137639680688 2.3677e-05 deg
peri 314.9622390871576 6.0311e-05 deg
M 246.472543370205 5.7931e-05 deg
tp 2459611.893448598813
(2022-Feb-01.39344860)
0.00031944 TDB
period 1938.75251000565
5.31
6.805e-05
1.863e-07
d
yr
n .1856864133725613 6.5176e-09 deg/d
Q 3.310499013994437 7.7466e-08 au
  Orbit Determination Parameters
   # obs. used (total)      101  
   data-arc span      7679 days (21.02 yr)  
   first obs. used      1999-01-14  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55926  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 18:44:13  

Additional Information
 Earth MOID = 1.78527 au 
 Jupiter MOID = 1.94362 au 
 T_jup = 3.161 
[ 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 E2018N10  
diameter diameter 2.898 km 0.960 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.028   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

523970 (1999 AP30)          Discovered 1999-Jan-14 by Spacewatch at Kitt Peak
Reference: Last Updated: 2019-05-29

[ show close-approach data ]
Alternate Designations
 1999 AP30 = 2010 JB93 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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