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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1900-Jun-12 03:06 00:04 Jupiter 1.98022620403004 1.98022175806361 1.98023065013988 7.43333956449981 7.37557160607068 2415182.629283634 4.16468663446827 888.073952417814 41.4495709809537 75.8632860331306 1878908.53517753 T 13 CATAB v2.0f-lin.ifort 2019-Sep-24 05:57:59 2019-Sep-24 05:58
2020-Jan-12 18:54 < 00:01 Jupiter 1.87199291445683 1.87199172756591 1.87199410134764 7.37395683207811 7.31233870597284 2458861.287815445 0.55475664594521 126.47577427421 57.542704933031 -89.935005605483 1580715.55168606 T 13 CATAB v2.0f-lin.ifort 2019-Sep-24 05:57:59 2019-Sep-24 05:58
2031-Apr-19 08:39 < 00:01 Jupiter 1.84471270000431 1.84471150451063 1.84471389550134 7.33870419518649 7.27586796716958 2462975.860708371 0.79532014674232 206.884827503865 44.8073278066448 79.1407591521243 1798350.95099156 T 13 CATAB v2.0f-lin.ifort 2019-Sep-24 05:57:59 2019-Sep-24 05:58
2162-Feb-18 10:17 00:05 Jupiter 1.8527580381708 1.85275638337295 1.85275969305385 7.29356111941926 7.23060833594286 2510762.928784555 4.80389268162781 858.34080730288 54.7693641266778 -85.9860490565648 1709922.9248622 T 13 CATAB v2.0f-lin.ifort 2019-Sep-24 05:57:59 2019-Sep-24 05:58
2173-May-18 05:04 00:06 Jupiter 1.94857605565275 1.94857155961675 1.94858055197929 7.39459586626659 7.33557578796994 2514869.711238091 5.95784499871035 1232.55285223195 40.0060874478741 79.7115390598446 1988588.02700764 T 13 CATAB v2.0f-lin.ifort 2019-Sep-24 05:57:59 2019-Sep-24 05:58
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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