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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 ]

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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02606263654927665 7.1778e-08  
a 2.521368264709372 3.6186e-08 au
q 2.455654760019371 1.7645e-07 au
i 3.072196376072748 7.4667e-06 deg
node 44.46384845951003 0.00018691 deg
peri 41.35676902893172 0.0003485 deg
M 302.1150718924064 0.00030308 deg
tp 2459235.634225117030
(2021-Jan-21.13422512)
0.0012343 TDB
period 1462.355120918363
4.00
3.1481e-05
8.619e-08
d
yr
n .2461782332145964 5.2996e-09 deg/d
Q 2.587081769399373 3.7129e-08 au
  Orbit Determination Parameters
   # obs. used (total)      84  
   data-arc span      6823 days (18.68 yr)  
   first obs. used      2000-12-22  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60391  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:53:53  

Additional Information
 Earth MOID = 1.47249 au 
 Jupiter MOID = 2.44548 au 
 T_jup = 3.453 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457296.5 (2015-Oct-01.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02566064888693761 6.8994e-08  
q 2.457561332087274 1.716e-07 au
tp 2457758.465020313722
(2017-Jan-04.96502031)
0.0012479 TDB
node 44.49468295835894 0.00018667 deg
peri 37.84642257740434 0.00035525 deg
i 3.074803041922352 7.4714e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      84  
   data-arc span      6823 days (18.68 yr)  
   first obs. used      2000-12-22  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60391  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:53:53  

Additional Information
 Jupiter MOID = 2.44548 au 
 T_jup = 3.453 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.760168625070981E-15 -1.158563463684256E-14 2.236032215582187E-11 -2.152740584387962E-14 5.443449487181194E-12 8.769332659918751E-15
q -1.158563463684256E-14 2.94473818651584E-14 -2.894093950092494E-11 -8.631926366809331E-15 -7.131995010531887E-12 -1.684902360365456E-14
tp 2.236032215582187E-11 -2.894093950092494E-11 1.557307213138951E-6 -3.356098627697311E-9 3.773340342978389E-7 2.49510346997556E-10
node -2.152740584387962E-14 -8.631926366809331E-15 -3.356098627697311E-9 3.484532334914742E-8 -3.559965268894034E-8 -3.093256309225286E-10
peri 5.443449487181194E-12 -7.131995010531887E-12 3.773340342978389E-7 -3.559965268894034E-8 1.262022936867425E-7 3.687365089166487E-10
i 8.769332659918751E-15 -1.684902360365456E-14 2.49510346997556E-10 -3.093256309225286E-10 3.687365089166487E-10 5.582239375410602E-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

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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
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 11 CATAB v2.0f-lin.ifort 2020-Nov-12 08:53:53 2020-Nov-12 08:53
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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