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74414 (1999 AN9)
Classification: Main-belt Asteroid          SPK-ID: 2074414
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 .1192551890847583 4.4509e-08  
a 3.009365436801239 2.0836e-08 au
q 2.650482992610371 1.3271e-07 au
i 15.07321907186824 5.5004e-06 deg
node 112.6044492925232 1.6175e-05 deg
peri 314.9709350767293 2.9224e-05 deg
M 65.69902411920089 2.2936e-05 deg
tp 2458652.509620360867
(2019-Jun-18.00962036)
0.00012185 TDB
period 1906.824923956139
5.22
1.9803e-05
5.422e-08
d
yr
n .1887955183914308 1.9607e-09 deg/d
Q 3.368247880992107 2.332e-08 au
  Orbit Determination Parameters
   # obs. used (total)      958  
   data-arc span      9607 days (26.30 yr)  
   first obs. used      1994-01-08  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4787  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:04:44  

Additional Information
 Earth MOID = 1.68776 au 
 Jupiter MOID = 1.90913 au 
 T_jup = 3.187 
[ 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 14.5   n/a MPO337818  
diameter diameter 5.186 km 0.353 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.165   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74414 (1999 AN9)          Discovered 1999-Jan-10 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 AN9 = 2000 FZ24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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