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134558 (1999 RW173)
Classification: Main-belt Asteroid          SPK-ID: 2134558
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2538099097225987 5.4226e-08  
a 2.318120201256614 9.7448e-09 au
q 1.729758322249541 1.2876e-07 au
i 4.99510330505651 4.677e-06 deg
node 28.44465333644361 6.7685e-05 deg
peri 356.762230523551 6.9034e-05 deg
M 347.5207967601802 1.6281e-05 deg
tp 2459245.187567112646
(2021-Jan-30.68756711)
5.8451e-05 TDB
period 1289.146738889475
3.53
8.1289e-06
2.226e-08
d
yr
n .2792544782839221 1.7609e-09 deg/d
Q 2.906482080263688 1.2218e-08 au
  Orbit Determination Parameters
   # obs. used (total)      317  
   data-arc span      7762 days (21.25 yr)  
   first obs. used      1999-09-09  
   last obs. used      2020-12-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60988  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:08:54  

Additional Information
 Earth MOID = .732604 au 
 Jupiter MOID = 2.54982 au 
 T_jup = 3.531 
[ 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 16.95   n/a E2021B55  

134558 (1999 RW173)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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