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(2008 DB)
Classification: Apollo [NEO]          SPK-ID: 3403149
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2331212102009967 1.0634e-07  
a 1.054971069410421 4.0499e-08 au
q .8090349369824239 9.1522e-08 au
i 4.224611870236484 7.1766e-06 deg
node 141.4940284437738 1.4608e-05 deg
peri 274.9587394134675 1.582e-05 deg
M 10.48725492834464 1.9828e-05 deg
tp 2459188.970284889619
(2020-Dec-05.47028489)
2.1778e-05 TDB
period 395.7849282865001
1.08
2.2791e-05
6.24e-08
d
yr
n .909584914106188 5.2377e-08 deg/d
Q 1.300907201838418 4.9941e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -1.040911571403822E-12 1.421E-13
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      74  
   data-arc span      4769 days (13.06 yr)  
   first obs. used      2008-02-18  
   last obs. used      2021-03-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .48402  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-11 05:22:01  

Additional Information
 Earth MOID = .00116019 au 
 Jupiter MOID = 3.98808 au 
 T_jup = 5.806 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 25.7   n/a E2021D90  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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