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441672 (2008 XU38)
Classification: Main-belt Asteroid          SPK-ID: 2441672
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02624111796487151 6.7661e-08  
a 2.52190333793162 2.4734e-08 au
q 2.455725774944953 1.7299e-07 au
i 3.071927922314561 6.9688e-06 deg
node 44.46321516162856 0.00015076 deg
peri 41.13417493086386 0.00020975 deg
M 351.5681896086713 0.00014571 deg
tp 2459234.761739812838
(2021-Jan-20.26173981)
0.00059204 TDB
period 1462.820647070769
4.00
2.152e-05
5.892e-08
d
yr
n .2460998897717799 3.6204e-09 deg/d
Q 2.588080900918287 2.5383e-08 au
  Orbit Determination Parameters
   # obs. used (total)      101  
   data-arc span      7299 days (19.98 yr)  
   first obs. used      2000-12-22  
   last obs. used      2020-12-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57053  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 17:43:01  

Additional Information
 Earth MOID = 1.47211 au 
 Jupiter MOID = 2.44426 au 
 T_jup = 3.453 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457627.5 (2016-Aug-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02548272255954634 6.6972e-08  
q 2.457697646262649 1.7089e-07 au
tp 2457759.165377133626
(2017-Jan-05.66537713)
0.00061698 TDB
node 44.49145527954703 0.00015054 deg
peri 38.01794271295412 0.00021363 deg
i 3.074956544709636 6.9722e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      101  
   data-arc span      7299 days (19.98 yr)  
   first obs. used      2000-12-22  
   last obs. used      2020-12-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57053  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 17:43:01  

Additional Information
 Jupiter MOID = 2.44426 au 
 T_jup = 3.453 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.485208954183044E-15 -1.133013084126216E-14 4.241987098761991E-12 6.823764863429723E-14 1.029203394437707E-12 4.474661975927617E-15
q -1.133013084126216E-14 2.920430328514191E-14 -1.203435216676127E-11 -1.745399910146101E-13 -2.931255758555856E-12 -1.083567837023798E-14
tp 4.241987098761991E-12 -1.203435216676127E-11 3.806597648514212E-7 -4.209372655571664E-10 9.360194951401666E-8 4.016621033305239E-11
node 6.823764863429723E-14 -1.745399910146101E-13 -4.209372655571664E-10 2.266204090862273E-8 -2.273064762543248E-8 -1.340475298732766E-11
peri 1.029203394437707E-12 -2.931255758555856E-12 9.360194951401666E-8 -2.273064762543248E-8 4.563819605281907E-8 2.321003802927954E-11
i 4.474661975927617E-15 -1.083567837023798E-14 4.016621033305239E-11 -1.340475298732766E-11 2.321003802927954E-11 4.861088377802922E-11

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 17.6   n/a MPO440827  

441672 (2008 XU38)          Discovered 2008-Dec-02 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

[ 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
2047-Oct-18 23:17 00:03 Amphi 0.00105706699427434 0.00104058538042806 0.00107365852609788 1.7631511594153 1.76314807493956 2469002.470034423 2.52550378396495 982.623692208299 61.5745385857713 -33.2417260218023 1408.84345773596 T 12 CATAB v2.0f-lin.ifort 2021-Feb-24 17:43:02 2021-Feb-24 17:43
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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