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441688 (2008 YL99)
Classification: Main-belt Asteroid          SPK-ID: 2441688
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1630008693105172 1.5397e-06  
a 2.559365570583265 5.6467e-07 au
q 2.142186757694785 4.4104e-06 au
i 8.447120075420971 8.7076e-05 deg
node 115.3576289002281 0.0001006 deg
peri 277.1278652845672 0.0015293 deg
M 345.2038123259095 0.0012909 deg
tp 2459061.967314947737
(2020-Jul-31.46731495)
0.0053432 TDB
period 1495.536138672662
4.09
0.00049494
1.355e-06
d
yr
n .240716349602566 7.9664e-08 deg/d
Q 2.976544383471745 6.5672e-07 au
  Orbit Determination Parameters
   # obs. used (total)      39  
   data-arc span      3825 days (10.47 yr)  
   first obs. used      2005-01-15  
   last obs. used      2015-07-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .48344  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:35:56  

Additional Information
 Earth MOID = 1.168 au 
 Jupiter MOID = 2.49414 au 
 T_jup = 3.402 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.4   n/a MPO342863  

441688 (2008 YL99)          Discovered 2008-Dec-29 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2008 YL99 = 2005 AM73 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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