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308622 (2005 XR)
Classification: Outer Main-belt Asteroid          SPK-ID: 2308622
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2338559248255837 6.7286e-08  
a 3.208331811130809 4.6546e-08 au
q 2.458044408291474 1.9664e-07 au
i 27.48804168666318 1.2219e-05 deg
node 244.3006736966518 1.2217e-05 deg
peri 247.3781142892781 2.6161e-05 deg
M 145.2557006262279 2.357e-05 deg
tp 2458153.569003569846
(2018-Feb-04.06900357)
0.00013203 TDB
period 2099.023703719634
5.75
4.5679e-05
1.251e-07
d
yr
n .1715083061530233 3.7323e-09 deg/d
Q 3.958619213970145 5.7431e-08 au
  Orbit Determination Parameters
   # obs. used (total)      249  
   data-arc span      5017 days (13.74 yr)  
   first obs. used      2005-10-30  
   last obs. used      2019-07-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61665  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:57:57  

Additional Information
 Earth MOID = 1.59681 au 
 Jupiter MOID = 1.80321 au 
 T_jup = 2.976 
[ 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 15.0   n/a MPO264773  
diameter diameter 6.780 km 0.330 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.038   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

308622 (2005 XR)          Discovered 2005-Dec-02 by Lowe, A. at Mayhill
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

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