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441364 (2008 DY81)
Classification: Main-belt Asteroid          SPK-ID: 2441364
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2311634584603501 1.023e-07  
a 3.181051736566942 7.5034e-08 au
q 2.445708815600825 3.4034e-07 au
i 14.18542806515444 1.6445e-05 deg
node 9.88742556333129 3.9836e-05 deg
peri 224.2983173258649 5.4692e-05 deg
M 17.16401599385145 4.2402e-05 deg
tp 2458901.696817095644
(2020-Feb-22.19681710)
0.00024155 TDB
period 2072.30905973928
5.67
7.3322e-05
2.007e-07
d
yr
n .1737192617617046 6.1465e-09 deg/d
Q 3.916394657533059 9.2379e-08 au
  Orbit Determination Parameters
   # obs. used (total)      95  
   data-arc span      4076 days (11.16 yr)  
   first obs. used      2008-02-28  
   last obs. used      2019-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67377  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:35:29  

Additional Information
 Earth MOID = 1.45847 au 
 Jupiter MOID = 1.23751 au 
 T_jup = 3.111 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457062.5 (2015-Feb-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2298465349212571 1.0262e-07  
q 2.450599898991349 3.4211e-07 au
tp 2456827.471982935909
(2014-Jun-18.97198294)
0.00019442 TDB
node 9.92567760171913 3.9822e-05 deg
peri 224.0164311214342 5.4771e-05 deg
i 14.18549672527548 1.6444e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      95  
   data-arc span      4076 days (11.16 yr)  
   first obs. used      2008-02-28  
   last obs. used      2019-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67377  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:35:29  

Additional Information
 Jupiter MOID = 1.23751 au 
 T_jup = 3.111 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.053058558578739E-14 -3.459116691054624E-14 -1.064975889462261E-11 8.642239193901603E-14 -2.171932365310365E-12 -2.772679250015769E-14
q -3.459116691054624E-14 1.170426146718115E-13 3.992962303738221E-11 -3.233195296299023E-13 8.150316572288748E-12 1.337387364560885E-13
tp -1.064975889462261E-11 3.992962303738221E-11 3.77991704144158E-8 -1.239449547286178E-10 7.366765796383354E-9 1.017301222951352E-11
node 8.642239193901603E-14 -3.233195296299023E-13 -1.239449547286178E-10 1.585804027624129E-9 -1.562982449592742E-9 -1.90734584694716E-10
peri -2.171932365310365E-12 8.150316572288748E-12 7.366765796383354E-9 -1.562982449592742E-9 2.999816706532357E-9 1.905080532327068E-10
i -2.772679250015769E-14 1.337387364560885E-13 1.017301222951352E-11 -1.90734584694716E-10 1.905080532327068E-10 2.70400592125793E-10

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 16.0   n/a MPO472456  

441364 (2008 DY81)          Discovered 2008-Feb-28 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

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Alternate Designations
 2008 DY81 = 2010 TX42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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