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35889 (1999 JA81)
Classification: Main-belt Asteroid          SPK-ID: 2035889
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .134032832527149 4.5706e-08  
a 2.614817308138655 1.805e-08 au
q 2.264345937787817 1.1945e-07 au
i 14.32043126789503 6.659e-06 deg
node 107.3020742055775 1.8311e-05 deg
peri 136.1892612984336 3.3497e-05 deg
M 259.958043460929 3.1402e-05 deg
tp 2459029.680646206412
(2020-Jun-29.18064621)
0.00013754 TDB
period 1544.402348568292
4.23
1.5991e-05
4.378e-08
d
yr
n .2330998786253665 2.4136e-09 deg/d
Q 2.965288678489494 2.0469e-08 au
  Orbit Determination Parameters
   # obs. used (total)      874  
   data-arc span      7762 days (21.25 yr)  
   first obs. used      1997-12-31  
   last obs. used      2019-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57473  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:49:14  

Additional Information
 Earth MOID = 1.27063 au 
 Jupiter MOID = 2.16347 au 
 T_jup = 3.351 
[ 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 MPO436016  
diameter diameter 3.748 km 0.701 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.240   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

35889 (1999 JA81)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JA81 = 1997 YU18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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