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178247 (2007 DB8)
Classification: Main-belt Asteroid          SPK-ID: 2178247
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1788974861138679 3.9281e-08  
a 2.773035681033193 2.3672e-08 au
q 2.276946568792297 1.1537e-07 au
i 11.42977341873026 5.2809e-06 deg
node 81.72465187231127 2.2951e-05 deg
peri 64.36035253846956 2.9594e-05 deg
M 316.1821182268145 1.9821e-05 deg
tp 2459205.796002042394
(2020-Dec-22.29600204)
9.4524e-05 TDB
period 1686.675798657369
4.62
2.1597e-05
5.913e-08
d
yr
n .213437579579056 2.733e-09 deg/d
Q 3.269124793274088 2.7906e-08 au
  Orbit Determination Parameters
   # obs. used (total)      352  
   data-arc span      7948 days (21.76 yr)  
   first obs. used      1998-04-24  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55676  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 18:18:36  

Additional Information
 Earth MOID = 1.31657 au 
 Jupiter MOID = 1.87546 au 
 T_jup = 3.284 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457703.5 (2016-Nov-11.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1793028634435957 3.9389e-08  
q 2.27604425748012 1.1585e-07 au
tp 2457521.568958558203
(2016-May-13.06895856)
8.2215e-05 TDB
node 81.73947723718607 2.2965e-05 deg
peri 64.73694380809782 2.9561e-05 deg
i 11.42637544530493 5.2794e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      352  
   data-arc span      7948 days (21.76 yr)  
   first obs. used      1998-04-24  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55676  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 18:18:36  

Additional Information
 Jupiter MOID = 1.87546 au 
 T_jup = 3.284 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.551473368122307E-15 -4.502931738638567E-15 -1.022064765387045E-13 1.876068448399672E-14 2.956239216029065E-14 -4.103784600689831E-15
q -4.502931738638567E-15 1.342121925528402E-14 1.020006521672763E-12 -5.999662908628056E-14 8.147786874793431E-14 1.550170790109964E-14
tp -1.022064765387045E-13 1.020006521672763E-12 6.759332723230644E-9 -2.859693235256576E-11 1.550298485231018E-9 1.893708952925929E-11
node 1.876068448399672E-14 -5.999662908628056E-14 -2.859693235256576E-11 5.27409666891037E-10 -5.221243307508339E-10 -3.993920492004766E-11
peri 2.956239216029065E-14 8.147786874793431E-14 1.550298485231018E-9 -5.221243307508339E-10 8.738256340421039E-10 4.326727441085311E-11
i -4.103784600689831E-15 1.550170790109964E-14 1.893708952925929E-11 -3.993920492004766E-11 4.326727441085311E-11 2.787155182875338E-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 16.0   n/a MPO493991  

178247 (2007 DB8)          Discovered 2007-Feb-21 by Lowe, A. at Mayhill
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22

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Alternate Designations
 2007 DB8 = 2002 AZ198 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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