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85239 (1993 OB7)
Classification: Main-belt Asteroid          SPK-ID: 2085239
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2064358182931115 4.7817e-08  
a 3.093811887319772 2.8689e-08 au
q 2.455138298715959 1.5294e-07 au
i 1.506111008982552 5.7069e-06 deg
node 61.39270561501158 0.00022817 deg
peri 251.9046890357272 0.00022861 deg
M 35.21507513208896 1.725e-05 deg
tp 2459202.069048675323
(2020-Dec-18.56904868)
9.37e-05 TDB
period 1987.647114604678
5.44
2.7648e-05
7.57e-08
d
yr
n .1811186690810557 2.5193e-09 deg/d
Q 3.732485475923585 3.4612e-08 au
  Orbit Determination Parameters
   # obs. used (total)      405  
   data-arc span      10223 days (27.99 yr)  
   first obs. used      1993-07-13  
   last obs. used      2021-07-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57238  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 22:03:33  

Additional Information
 Earth MOID = 1.44106 au 
 Jupiter MOID = 1.56354 au 
 T_jup = 3.190 
[ 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 15.70   n/a E2021B10  
diameter diameter 4.567 km 0.296 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.044   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85239 (1993 OB7)          Discovered 1993-Jul-20 by Elst, E. W. at La Silla
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1993 OB7 = 1999 SF22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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