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129854 (1999 RT94)
Classification: Main-belt Asteroid          SPK-ID: 2129854
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1160719402887902 6.4734e-08  
a 2.704951977492162 1.8192e-08 au
q 2.390982953076647 1.7697e-07 au
i 2.494311131439909 4.7607e-06 deg
node 94.03851963670219 0.00015288 deg
peri 281.705830330583 0.00015388 deg
M 223.351894211589 1.9269e-05 deg
tp 2459617.292211221462
(2022-Feb-06.79221122)
8.9413e-05 TDB
period 1624.941632074623
4.45
1.6392e-05
4.488e-08
d
yr
n .221546419202993 2.235e-09 deg/d
Q 3.018921001907677 2.0303e-08 au
  Orbit Determination Parameters
   # obs. used (total)      534  
   data-arc span      7617 days (20.85 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-07-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53732  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:45:50  

Additional Information
 Earth MOID = 1.39368 au 
 Jupiter MOID = 2.44384 au 
 T_jup = 3.355 
[ 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 15.7   n/a MPO436629  
diameter diameter 3.691 km 0.539 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129854 (1999 RT94)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

Alternate Designations
 1999 RT94 = 1999 TS311 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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