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JPL Small-Body Database Browser
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47091 (1999 AP9)
Classification: Main-belt Asteroid          SPK-ID: 2047091
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03699194897445771 3.3521e-08  
a 2.94254285710449 2.0272e-08 au
q 2.833692461879326 9.5857e-08 au
i 1.582902192027179 8.2036e-06 deg
node 191.0433566501326 0.00013501 deg
peri 86.39655773222492 0.00019305 deg
M 199.8881224875255 0.00013953 deg
tp 2459420.480777809743
(2021-Jul-24.98077781)
0.00071357 TDB
period 1843.667594170263
5.05
1.9052e-05
5.216e-08
d
yr
n .1952629645052784 2.0178e-09 deg/d
Q 3.051393252329654 2.1022e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1199  
   data-arc span      9622 days (26.34 yr)  
   first obs. used      1992-10-23  
   last obs. used      2019-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5222  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:40:34  

Additional Information
 Earth MOID = 1.81732 au 
 Jupiter MOID = 1.982 au 
 T_jup = 3.271 
[ 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 13.8   n/a MPO385117  
diameter diameter 5.257 km 0.191 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.176   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

47091 (1999 AP9)          Discovered 1999-Jan-10 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 AP9 = 2000 ES47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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