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JPL Small-Body Database Browser
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185990 (2001 OS12)
Classification: Main-belt Asteroid          SPK-ID: 2185990
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1677201645070786 6.2953e-08  
a 2.413987621605853 1.3198e-08 au
q 2.009113220592068 1.5613e-07 au
i 4.775773453533041 5.6434e-06 deg
node 287.3958061568213 6.3906e-05 deg
peri 33.22336000028499 6.509e-05 deg
M 359.394434437935 1.3416e-05 deg
tp 2459002.804409482148
(2020-Jun-02.30440948)
5.106e-05 TDB
period 1369.938228891656
3.75
1.1235e-05
3.076e-08
d
yr
n .2627855712087521 2.1551e-09 deg/d
Q 2.818862022619638 1.5412e-08 au
  Orbit Determination Parameters
   # obs. used (total)      358  
   data-arc span      7019 days (19.22 yr)  
   first obs. used      2000-02-12  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61673  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:53:19  

Additional Information
 Earth MOID = .998101 au 
 Jupiter MOID = 2.48087 au 
 T_jup = 3.494 
[ 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 16.2   n/a MPO433221  

185990 (2001 OS12)          Discovered 2001-Jul-21 by Boattini, A., Tesi, L. at San Marcello
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

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