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100505 (1997 AA9)
Classification: Main-belt Asteroid          SPK-ID: 2100505
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1013223206964119 4.924e-08  
a 2.992476815920611 2.0391e-08 au
q 2.689272120301325 1.5771e-07 au
i 6.330203715948765 5.6044e-06 deg
node 303.6841181651339 3.6867e-05 deg
peri 76.23177948809062 4.658e-05 deg
M 325.336512270765 3.0285e-05 deg
tp 2459382.559931764144
(2021-Jun-17.05993176)
0.00016003 TDB
period 1890.795754514173
5.18
1.9326e-05
5.291e-08
d
yr
n .1903960272496484 1.9461e-09 deg/d
Q 3.295681511539897 2.2457e-08 au
  Orbit Determination Parameters
   # obs. used (total)      786  
   data-arc span      8722 days (23.88 yr)  
   first obs. used      1997-01-02  
   last obs. used      2020-11-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50564  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:32:28  

Additional Information
 Earth MOID = 1.69888 au 
 Jupiter MOID = 2.19597 au 
 T_jup = 3.239 
[ 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 14.61   n/a E2021B55  
diameter diameter 6.498 km 0.125 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.080   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100505 (1997 AA9)          Discovered 1997-Jan-02 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1997 AA9 = 2000 RP96 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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