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19549 (1999 JS58)
Classification: Main-belt Asteroid          SPK-ID: 2019549
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2166433950058522 1.901e-08  
a 2.267842466461814 5.7408e-09 au
q 1.776529375189081 4.2577e-08 au
i 6.101488943055478 8.2792e-07 deg
node 71.8754698728919 1.4479e-05 deg
peri 257.2525910948194 1.4566e-05 deg
M 50.12699129532664 4.0978e-06 deg
tp 2459026.805170954179
(2020-Jun-26.30517095)
1.4247e-05 TDB
period 1247.434502663342
3.42
4.7366e-06
1.297e-08
d
yr
n .2885923062344196 1.0958e-09 deg/d
Q 2.759155557734547 6.9845e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2294  
   data-arc span      12534 days (34.32 yr)  
   first obs. used      1986-11-25  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44565  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:55:55  

Additional Information
 Earth MOID = .77573 au 
 Jupiter MOID = 2.60916 au 
 T_jup = 3.576 
[ 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 14.37   n/a E2021B10  

19549 (1999 JS58)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JS58 = 1986 WQ4 = 1996 QD2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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