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JPL Small-Body Database Browser
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59649 (1999 JB90)
Classification: Main-belt Asteroid          SPK-ID: 2059649
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1108074125345022 3.5182e-08  
a 2.294200960838954 8.2123e-09 au
q 2.03998648853422 8.1276e-08 au
i 6.006556678691132 4.093e-06 deg
node 140.5529099218281 3.4842e-05 deg
peri 240.6071145733897 3.914e-05 deg
M 117.526702313369 1.7665e-05 deg
tp 2458186.138246253604
(2018-Mar-08.63824625)
6.1858e-05 TDB
period 1269.245443056511
3.48
6.815e-06
1.866e-08
d
yr
n .2836330844986707 1.5229e-09 deg/d
Q 2.548415433143687 9.1222e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1265  
   data-arc span      8825 days (24.16 yr)  
   first obs. used      1995-02-04  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59069  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:39:45  

Additional Information
 Earth MOID = 1.0488 au 
 Jupiter MOID = 2.89226 au 
 T_jup = 3.581 
[ 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 MPO468499  
diameter diameter 2.027 km 0.387 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.430   0.209 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59649 (1999 JB90)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JB90 = 2000 QS131 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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