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181908 (1999 SG19)
Classification: Main-belt Asteroid          SPK-ID: 2181908
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2140925437889568 3.2918e-08  
a 2.357182272653632 1.2099e-08 au
q 1.852527123726982 7.8329e-08 au
i 6.436234577916128 6.6579e-06 deg
node 342.6414994292467 3.6418e-05 deg
peri 85.01979328661139 4.0802e-05 deg
M 266.117654646042 1.7815e-05 deg
tp 2459545.222480471011
(2021-Nov-26.72248047)
6.6736e-05 TDB
period 1321.86826502553
3.62
1.0178e-05
2.787e-08
d
yr
n .2723418131178505 2.0969e-09 deg/d
Q 2.861837421580283 1.469e-08 au
  Orbit Determination Parameters
   # obs. used (total)      376  
   data-arc span      7148 days (19.57 yr)  
   first obs. used      1999-09-29  
   last obs. used      2019-04-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55401  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:32:33  

Additional Information
 Earth MOID = .878973 au 
 Jupiter MOID = 2.47951 au 
 T_jup = 3.514 
[ 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 17.0   n/a MPO436899  

181908 (1999 SG19)          Discovered 1999-Sep-29 by CSS at Catalina
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

Alternate Designations
 1999 SG19 = 2003 YK126 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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