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101814 (1999 JD8)
Classification: Main-belt Asteroid          SPK-ID: 2101814
[ 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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4667181327685465 5.3234e-08  
a 3.1628051804261 1.9607e-08 au
q 1.686666652306945 1.6953e-07 au
i 24.39740608301956 6.9707e-06 deg
node 215.885360090968 1.3062e-05 deg
peri 62.67189812255884 1.5766e-05 deg
M 282.8422761972512 3.4769e-06 deg
tp 2459640.835799796717
(2022-Mar-02.33579980)		 2.05e-05 TDB
period 2054.504463248184
5.62		 1.9104e-05
5.23e-08		 d
yr
n .1752247349372207 1.6294e-09 deg/d
Q 4.638943708545256 2.8758e-08 au
   Orbit Determination Parameters
   # obs. used (total)      491  
   data-arc span      11899 days (32.58 yr)  
   first obs. used      1988-07-15  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50567  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:38:45  

Additional Information
 Earth MOID = .796358 au 
 Jupiter MOID = 1.30178 au 
 T_jup = 2.901 
[ 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 15.5   n/a MPO432544  
diameter diameter 4.547 km 0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101814 (1999 JD8)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 1999 JD8 = 1994 UF11 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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