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59501 (1999 JB9)
Classification: Main-belt Asteroid          SPK-ID: 2059501
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1212699199622788 3.2093e-08  
a 2.720328969874498 1.3709e-08 au
q 2.390434893426749 8.809e-08 au
i 11.6606039788089 4.3724e-06 deg
node 179.0882580614092 1.7409e-05 deg
peri 144.634771494071 2.4789e-05 deg
M 211.0516985438846 1.7916e-05 deg
tp 2459878.552967426514
(2022-Oct-26.05296743)
8.2351e-05 TDB
period 1638.817400985696
4.49
1.2389e-05
3.392e-08
d
yr
n .2196705989230231 1.6606e-09 deg/d
Q 3.050223046322247 1.5372e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1221  
   data-arc span      10784 days (29.52 yr)  
   first obs. used      1991-09-13  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53348  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:44:52  

Additional Information
 Earth MOID = 1.38775 au 
 Jupiter MOID = 2.36756 au 
 T_jup = 3.319 
[ 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 14.48   n/a E2021B10  

59501 (1999 JB9)          Discovered 1999-May-07 by CSS at Catalina
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JB9 = 2000 QY82 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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