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JPL Small-Body Database Browser
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215128 (1999 RO138)
Classification: Main-belt Asteroid          SPK-ID: 2215128
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1947952771836509 4.83e-08  
a 2.612527642187358 1.7957e-08 au
q 2.103619595977522 1.25e-07 au
i 11.46729396638051 5.5574e-06 deg
node 261.4439300529963 2.8842e-05 deg
peri 81.70128450598193 3.254e-05 deg
M 238.8733778126384 1.6935e-05 deg
tp 2459119.451622207504
(2020-Sep-26.95162221)
7.5251e-05 TDB
period 1542.374257788843
4.22
1.5902e-05
4.354e-08
d
yr
n .2334063851118068 2.4065e-09 deg/d
Q 3.121435688397195 2.1455e-08 au
  Orbit Determination Parameters
   # obs. used (total)      304  
   data-arc span      7152 days (19.58 yr)  
   first obs. used      1999-09-08  
   last obs. used      2019-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57571  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 11:58:04  

Additional Information
 Earth MOID = 1.1312 au 
 Jupiter MOID = 2.38696 au 
 T_jup = 3.354 
[ 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 16.0   n/a MPO437029  

215128 (1999 RO138)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

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