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85830 (1998 XB59)
Classification: Main-belt Asteroid          SPK-ID: 2085830
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1978706930769578 3.7978e-08  
a 2.612286240198449 9.6374e-09 au
q 2.095391351334981 9.9148e-08 au
i 3.365666392661905 4.0305e-06 deg
node 140.4949671377854 7.3235e-05 deg
peri 277.7457764497237 7.4106e-05 deg
M 47.41503446462801 9.6344e-06 deg
tp 2458797.384465053406
(2019-Nov-09.88446505)
4.1296e-05 TDB
period 1542.160485727854
4.22
8.5341e-06
2.337e-08
d
yr
n .2334387395680746 1.2918e-09 deg/d
Q 3.129181129061916 1.1544e-08 au
  Orbit Determination Parameters
   # obs. used (total)      763  
   data-arc span      9138 days (25.02 yr)  
   first obs. used      1995-01-25  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56001  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:39:17  

Additional Information
 Earth MOID = 1.11085 au 
 Jupiter MOID = 2.22367 au 
 T_jup = 3.379 
[ 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 15.7   n/a MPO417415  
diameter diameter 4.458 km 0.177 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85830 (1998 XB59)          Discovered 1998-Dec-15 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 XB59 = 2002 TK227 = 2004 FS87 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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