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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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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2493462495433667 4.3883e-08  
a 2.458937758169355 1.4305e-08 au
q 1.845810850309252 1.1363e-07 au
i .7091582786361582 6.4752e-06 deg
node 258.9624982130135 0.00037963 deg
peri 50.19660890093 0.00037996 deg
M 153.1893840137868 1.944e-05 deg
tp 2458401.197761800065
(2018-Oct-09.69776180)
7.2371e-05 TDB
period 1408.379615473613
3.86
1.229e-05
3.365e-08
d
yr
n .2556129015534909 2.2306e-09 deg/d
Q 3.072064666029457 1.7872e-08 au
  Orbit Determination Parameters
   # obs. used (total)      311  
   data-arc span      7479 days (20.48 yr)  
   first obs. used      1999-08-07  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58213  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 17:01:23  

Additional Information
 Earth MOID = .831315 au 
 Jupiter MOID = 2.20526 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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