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78235 (2002 OS18)
Classification: Main-belt Asteroid          SPK-ID: 2078235
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1660963373818866 5.0161e-08  
a 2.682012645477833 1.3086e-08 au
q 2.23654016825206 1.3691e-07 au
i 10.56986654325706 4.3036e-06 deg
node 275.517104511715 3.025e-05 deg
peri 147.7760884868671 3.4681e-05 deg
M 302.5216500952262 1.4958e-05 deg
tp 2459256.648283390412
(2021-Feb-11.14828339)
6.6445e-05 TDB
period 1604.315053812802
4.39
1.1742e-05
3.215e-08
d
yr
n .2243948276521042 1.6423e-09 deg/d
Q 3.127485122703605 1.5259e-08 au
  Orbit Determination Parameters
   # obs. used (total)      744  
   data-arc span      8061 days (22.07 yr)  
   first obs. used      1998-10-02  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50793  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:27:38  

Additional Information
 Earth MOID = 1.25803 au 
 Jupiter MOID = 2.18759 au 
 T_jup = 3.332 
[ 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 15.1   n/a MPO439581  
diameter diameter 5.449 km 1.797 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.087   0.096 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

78235 (2002 OS18)          Discovered 2002-Jul-18 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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