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9658 Imabari (1996 DD3)
Classification: Main-belt Asteroid          SPK-ID: 2009658
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .18959900573574 3.6122e-08  
a 2.405198899600059 9.1134e-09 au
q 1.949175579639192 8.7737e-08 au
i 3.849621133627941 4.8169e-06 deg
node 42.20933769035545 6.3334e-05 deg
peri 88.02142437533043 6.4846e-05 deg
M 199.5106772688981 1.4517e-05 deg
tp 2459607.891297422126
(2022-Jan-28.39129742)
5.6739e-05 TDB
period 1362.463641511711
3.73
7.7436e-06
2.12e-08
d
yr
n .2642272344240796 1.5018e-09 deg/d
Q 2.861222219560926 1.0841e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1039  
   data-arc span      15359 days (42.05 yr)  
   first obs. used      1976-12-16  
   last obs. used      2019-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5468  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:02:27  

Additional Information
 Earth MOID = .968435 au 
 Jupiter MOID = 2.19758 au 
 T_jup = 3.495 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455918.5 (2011-Dec-23.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1883607291031305 3.5928e-08  
q 1.952708683504876 8.7175e-08 au
tp 2455518.432570106430
(2010-Nov-17.93257011)
4.8537e-05 TDB
node 42.35124413162593 6.3146e-05 deg
peri 87.7111973187571 6.4709e-05 deg
i 3.855206685002285 4.8224e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1039  
   data-arc span      15359 days (42.05 yr)  
   first obs. used      1976-12-16  
   last obs. used      2019-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5468  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:02:27  

Additional Information
 Jupiter MOID = 2.19758 au 
 T_jup = 3.495 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.290819458968776E-15 -3.121124938284696E-15 -8.782129630201366E-15 4.987042543970149E-15 -8.202657609560753E-15 -9.998926651503796E-16
q -3.121124938284696E-15 7.59956753202493E-15 8.640222631296806E-14 -1.258603859237307E-14 4.231745580558272E-14 2.664658223260516E-15
tp -8.782129630201366E-15 8.640222631296806E-14 2.355815985151337E-9 -1.415430512046136E-11 7.005469758817895E-10 6.85730406559882E-13
node 4.987042543970149E-15 -1.258603859237307E-14 -1.415430512046136E-11 3.987469720724894E-9 -3.981932327734124E-9 3.796299572841373E-13
peri -8.202657609560753E-15 4.231745580558272E-14 7.005469758817895E-10 -3.981932327734124E-9 4.187191728668756E-9 -1.252989869516499E-13
i -9.998926651503796E-16 2.664658223260516E-15 6.85730406559882E-13 3.796299572841373E-13 -1.252989869516499E-13 2.325517963692503E-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 15.1   n/a MPO337339  

9658 Imabari (1996 DD3)          Discovered 1996-Feb-28 by Nakamura, A. at Kuma
Reference: 19981110/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1996 DD3 = 1976 YT1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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