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(2013 XS21)
Classification: Apollo [NEO]          SPK-ID: 3654484
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4942218919856393 0.00029713  
a 1.914362997231285 0.0011058 AU
q .9682428947923404 9.5047e-06 AU
i 3.078759980723882 0.0013843 deg
node 80.43978548978897 9.6207e-05 deg
peri 341.0838330893209 0.0015103 deg
M 140.1951686201477 0.12165 deg
tp 2456623.739460412277
(2013-Nov-27.23946041)
0.00047289 JED
period 967.4641115420584
2.65
0.83829
0.002295
d
yr
n .3721068261914021 0.00032243 deg/d
Q 2.86048309967023 0.0016524 AU
  Orbit Determination Parameters
   # obs. used (total)      25  
   data-arc span      2 days  
   first obs. used      2013-12-12  
   last obs. used      2013-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      7  
   fit RMS      .56578  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 18:52:21  

Additional Information
 Earth MOID = .00053566 AU 
 T_jup = 3.771 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 29.4 mag n/a MPO279472  

[ hide close-approach data ]
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
2013-Dec-11 15:25 < 00:01 Moon 0.00229973187391736 0.00229904984300571 0.00230041775877572 6.99142591302236 6.98938727964891 2456638.142041021 0.354058678404499 102.46193286181 6.0748356861815 59.9861629256981 46187.9784057536 T 3 CATAB v2.0c-linF95 2014-Jun-13 18:52:24 2014-Jun-13 18:52
2013-Dec-11 23:26 < 00:01 Earth 0.000484684610200484 0.000483762926379184 0.00048560561192299 8.26373600092214 7.5693222492281 2456638.476728701 0.0831767039253488 38.7394572521553 0.555445802616409 0.946017282568868 983.377041569468 T 3 CATAB v2.0c-linF95 2014-Jun-13 18:52:24 2014-Jun-13 18:52
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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