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102915 (1999 XT23)
Classification: Outer Main-belt Asteroid          SPK-ID: 2102915
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2310773188096277 4.5027e-08  
a 3.304322017036089 1.966e-08 au
q 2.540768144855769 1.4998e-07 au
i 1.322394032573628 3.4549e-06 deg
node 121.4481085320068 0.00023693 deg
peri 306.6964190258278 0.00023708 deg
M 140.545982494883 1.0395e-05 deg
tp 2458143.979211516799
(2018-Jan-25.47921152)
5.9405e-05 TDB
period 2193.925990486271
6.01
1.958e-05
5.361e-08
d
yr
n .1640894002628631 1.4645e-09 deg/d
Q 4.06787588921641 2.4203e-08 au
  Orbit Determination Parameters
   # obs. used (total)      958  
   data-arc span      7563 days (20.71 yr)  
   first obs. used      1999-10-10  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50851  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:51:52  

Additional Information
 Earth MOID = 1.55517 au 
 Jupiter MOID = 1.2534 au 
 T_jup = 3.125 
[ 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 14.39   n/a E2021B55  
diameter diameter 8.112 km 0.538 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102915 (1999 XT23)          Discovered 1999-Dec-06 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 XT23 = 2001 DK68 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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