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79886 (1999 AL17)
Classification: Main-belt Asteroid          SPK-ID: 2079886
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0501604241931605 3.9232e-08  
a 2.809124482893984 1.9919e-08 au
q 2.668217607220629 1.1184e-07 au
i 2.70091149260919 4.2842e-06 deg
node 287.6176041815255 9.8898e-05 deg
peri 326.4597710164057 0.00010954 deg
M 72.45500565585579 4.6156e-05 deg
tp 2458654.384699682417
(2019-Jun-19.88469968)
0.00022076 TDB
period 1719.708762513357
4.71
1.8291e-05
5.008e-08
d
yr
n .2093377715153695 2.2266e-09 deg/d
Q 2.950031358567339 2.0918e-08 au
  Orbit Determination Parameters
   # obs. used (total)      590  
   data-arc span      10142 days (27.77 yr)  
   first obs. used      1992-10-21  
   last obs. used      2020-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54986  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:36:54  

Additional Information
 Earth MOID = 1.65389 au 
 Jupiter MOID = 2.07026 au 
 T_jup = 3.318 
[ 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 15.3   n/a MPO436339  

79886 (1999 AL17)          Discovered 1999-Jan-11 by Spacewatch at Kitt Peak
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 1999 AL17 = 2001 RR20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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