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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1596617755507288 3.4605e-08  
a 3.074189728092233 2.0676e-08 au
q 2.583359137725215 1.1e-07 au
i 10.45137105792253 7.8556e-06 deg
node 25.98449826093721 2.3763e-05 deg
peri 77.7316795139993 3.9227e-05 deg
M 264.1632905557604 2.8338e-05 deg
tp 2459124.611658696705
(2020-Oct-02.11165870)
0.00015673 TDB
period 1968.767481949003
5.39
1.9862e-05
5.438e-08
d
yr
n .1828555191513088 1.8448e-09 deg/d
Q 3.565020318459251 2.3977e-08 au
  Orbit Determination Parameters
   # obs. used (total)      741  
   data-arc span      7654 days (20.96 yr)  
   first obs. used      1998-11-16  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56874  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:14:41  

Additional Information
 Earth MOID = 1.62515 au 
 Jupiter MOID = 1.72675 au 
 T_jup = 3.185 
[ 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 14.4   n/a MPO453289  
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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