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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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .189599045165196 3.5403e-08  
a 2.405198895551895 8.8885e-09 au
q 1.949175481522872 8.6063e-08 au
i 3.849625196707093 4.4792e-06 deg
node 42.20937008512706 6.2204e-05 deg
peri 88.02137851492787 6.3549e-05 deg
M 199.510695839282 1.429e-05 deg
tp 2459607.891225606816
(2022-Jan-28.39122561)
5.6038e-05 TDB
period 1362.463638071989
3.73
7.5525e-06
2.068e-08
d
yr
n .2642272350911567 1.4647e-09 deg/d
Q 2.861222309580918 1.0574e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1081  
   data-arc span      15930 days (43.61 yr)  
   first obs. used      1976-12-16  
   last obs. used      2020-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54584  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:10:27  

Additional Information
 Earth MOID = .968434 au 
 Jupiter MOID = 2.19758 au 
 T_jup = 3.495 
[ show covariance matrix ]

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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1920-Apr-11 12:43 00:03 Psych 0.0471189512666336 0.0471103700294036 0.0471275325069647 3.95773999704339 3.95773993216347 2422426.030116590 2.64375004470288 427.835562982724 36.247472040389 2.38108965828201 18318.9784373377 T 19 CATAB v2.0f-lin.ifort 2020-Aug-25 00:10:40 2020-Aug-25 00:10

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