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173258 (1999 RT136)
Classification: Main-belt Asteroid          SPK-ID: 2173258
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2493856809524479 4.3555e-08  
a 2.458877429371594 1.4331e-08 au
q 1.845668607269155 1.1289e-07 au
i .7090379153687445 6.1209e-06 deg
node 258.9522041141822 0.00037553 deg
peri 50.23480648284174 0.00037584 deg
M 204.2675691871899 1.9501e-05 deg
tp 2459809.728637038898
(2022-Aug-18.22863704)
8.0329e-05 TDB
period 1408.327784966176
3.86
1.2313e-05
3.371e-08
d
yr
n .2556223088424305 2.2348e-09 deg/d
Q 3.072086251474034 1.7906e-08 au
  Orbit Determination Parameters
   # obs. used (total)      315  
   data-arc span      7855 days (21.51 yr)  
   first obs. used      1999-08-07  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58057  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:56:19  

Additional Information
 Earth MOID = .829183 au 
 Jupiter MOID = 2.2051 au 
 T_jup = 3.447 
[ 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 16.9   n/a MPO454189  

173258 (1999 RT136)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

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