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312346 (2008 DT2)
Classification: Main-belt Asteroid          SPK-ID: 2312346
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .009122389179978858 5.0116e-08  
a 2.643536838737193 2.4092e-08 au
q 2.619421466882621 1.3783e-07 au
i 3.713729151310003 4.8111e-06 deg
node 117.5241552920582 8.5979e-05 deg
peri 106.3751599685072 0.00030125 deg
M 271.3267221554551 0.00029108 deg
tp 2459587.193381589450
(2022-Jan-07.69338159)
0.0012705 TDB
period 1569.916222294765
4.30
2.1461e-05
5.876e-08
d
yr
n .229311599490184 3.1347e-09 deg/d
Q 2.667652210591764 2.4312e-08 au
  Orbit Determination Parameters
   # obs. used (total)      187  
   data-arc span      6629 days (18.15 yr)  
   first obs. used      2002-11-25  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5506  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 20:17:49  

Additional Information
 Earth MOID = 1.6081 au 
 Jupiter MOID = 2.29393 au 
 T_jup = 3.391 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457388.5 (2016-Jan-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01028042883208836 4.8426e-08  
q 2.615258608440529 1.33e-07 au
tp 2458051.716381859371
(2017-Oct-25.21638186)
0.0011702 TDB
node 117.596183030493 8.5996e-05 deg
peri 114.2613343033892 0.00028036 deg
i 3.713743752652019 4.8119e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      187  
   data-arc span      6629 days (18.15 yr)  
   first obs. used      2002-11-25  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5506  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 20:17:49  

Additional Information
 Jupiter MOID = 2.29393 au 
 T_jup = 3.391 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.345034559539258E-15 -6.338706940722159E-15 -1.423953336991467E-11 2.018423278252589E-14 -3.241677476837441E-12 4.593842774577945E-16
q -6.338706940722159E-15 1.768928871025573E-14 4.327074216829947E-11 -5.427971584021988E-14 9.80451006710694E-12 -7.831725904753872E-16
tp -1.423953336991467E-11 4.327074216829947E-11 1.36928769367049E-6 4.814812526426373E-11 3.122820467189957E-7 2.108983307933895E-11
node 2.018423278252589E-14 -5.427971584021988E-14 4.814812526426373E-11 7.395290424205612E-9 -7.368310488040353E-9 3.980735442095972E-11
peri -3.241677476837441E-12 9.80451006710694E-12 3.122820467189957E-7 -7.368310488040353E-9 7.860106285191001E-8 -3.492778121646276E-11
i 4.593842774577945E-16 -7.831725904753872E-16 2.108983307933895E-11 3.980735442095972E-11 -3.492778121646276E-11 2.315395864066615E-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 16.8   n/a MPO503318  

312346 (2008 DT2)          Discovered 2008-Feb-24 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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