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101494 (1998 XD3)
Classification: Main-belt Asteroid          SPK-ID: 2101494
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2017801575338987 3.9376e-08  
a 2.574565674318276 1.2908e-08 au
q 2.055069406972966 1.0244e-07 au
i 5.9637423327279 4.0566e-06 deg
node 80.86785322624462 4.575e-05 deg
peri 291.2520646522169 4.7407e-05 deg
M 160.1275829271208 1.5118e-05 deg
tp 2458529.352408069485
(2019-Feb-14.85240807)
6.0037e-05 TDB
period 1508.878911917076
4.13
1.1347e-05
3.107e-08
d
yr
n .2385877336854082 1.7943e-09 deg/d
Q 3.094061941663586 1.5512e-08 au
  Orbit Determination Parameters
   # obs. used (total)      782  
   data-arc span      8125 days (22.25 yr)  
   first obs. used      1998-12-08  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5938  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:37:02  

Additional Information
 Earth MOID = 1.06325 au 
 Jupiter MOID = 2.38935 au 
 T_jup = 3.391 
[ 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 15.62   n/a E2021B55  
diameter diameter 2.070 km 0.590 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.285   0.147 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101494 (1998 XD3)          Discovered 1998-Dec-08 by Zoltowski, F. B. at Woomera
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 XD3 = 2002 RO64 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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