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201515 (2003 OS21)
Classification: Main-belt Asteroid          SPK-ID: 2201515
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2115396532013244 7.2633e-08  
a 2.591310267732025 1.799e-08 au
q 2.043145392358961 1.9938e-07 au
i 3.611385492848326 3.6196e-06 deg
node 281.387337376674 8.599e-05 deg
peri 126.79255203946 8.6996e-05 deg
M 296.8623684693683 1.2353e-05 deg
tp 2459267.716539914419
(2021-Feb-22.21653991)
5.3515e-05 TDB
period 1523.623107758162
4.17
1.5866e-05
4.344e-08
d
yr
n .2362789053059841 2.4605e-09 deg/d
Q 3.139475143105088 2.1795e-08 au
  Orbit Determination Parameters
   # obs. used (total)      582  
   data-arc span      10602 days (29.03 yr)  
   first obs. used      1991-10-11  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50209  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 05:05:17  

Additional Information
 Earth MOID = 1.05579 au 
 Jupiter MOID = 2.2587 au 
 T_jup = 3.385 
[ 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 15.8   n/a MPO436980  

201515 (2003 OS21)          Discovered 2003-Jul-28 by CINEOS at Campo Imperatore
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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