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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1107179409060888 3.3564e-08  
a 2.294421795321787 7.8506e-09 au
q 2.040388138573707 7.8167e-08 au
i 6.006728617856977 3.7318e-06 deg
node 140.54948387178 3.4685e-05 deg
peri 240.4628360811882 3.8462e-05 deg
M 231.1534584743508 1.7239e-05 deg
tp 2459454.837497004649
(2021-Aug-28.33749700)
6.161e-05 TDB
period 1269.428709416416
3.48
6.5152e-06
1.784e-08
d
yr
n .2835921366277431 1.4555e-09 deg/d
Q 2.548455452069867 8.7198e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1318  
   data-arc span      9215 days (25.23 yr)  
   first obs. used      1995-02-04  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58179  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 11:48:05  

Additional Information
 Earth MOID = 1.04991 au 
 Jupiter MOID = 2.89134 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

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