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85826 (1998 XA40)
Classification: Main-belt Asteroid          SPK-ID: 2085826
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1599201662727743 3.1971e-08  
a 3.075725746849559 1.6103e-08 au
q 2.583855174003925 9.8815e-08 au
i 10.44957334280761 4.5688e-06 deg
node 25.97040085966841 2.207e-05 deg
peri 77.51937816430028 3.3374e-05 deg
M 49.84007549482947 2.0635e-05 deg
tp 2459123.730360455761
(2020-Oct-01.23036046)
0.0001132 TDB
period 1970.243208121009
5.39
1.5473e-05
4.236e-08
d
yr
n .1827185590672974 1.4349e-09 deg/d
Q 3.567596319695194 1.8678e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1115  
   data-arc span      8206 days (22.47 yr)  
   first obs. used      1998-11-16  
   last obs. used      2021-05-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49597  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:27:04  

Additional Information
 Earth MOID = 1.62565 au 
 Jupiter MOID = 1.72405 au 
 T_jup = 3.184 
[ 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 14.53   n/a MPCxxxxx  
diameter diameter 4.698 km 0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.183   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85826 (1998 XA40)          Discovered 1998-Dec-14 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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