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JPL Small-Body Database Browser
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305289 (2008 AB4)
Classification: Main-belt Asteroid          SPK-ID: 2305289
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2302229145786002 1.0334e-07  
a 2.879054125515081 3.341e-08 au
q 2.216229893509456 2.8476e-07 au
i 3.536433918449597 9.3513e-06 deg
node 317.3089127187578 0.00010138 deg
peri 211.1144237815959 0.0001026 deg
M 77.86581987035152 1.4013e-05 deg
tp 2458214.562009491509
(2018-Apr-06.06200949)
6.8948e-05 TDB
period 1784.321757792974
4.89
3.106e-05
8.504e-08
d
yr
n .201757333523346 3.512e-09 deg/d
Q 3.541878357520707 4.1102e-08 au
  Orbit Determination Parameters
   # obs. used (total)      294  
   data-arc span      4657 days (12.75 yr)  
   first obs. used      2006-10-02  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56819  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:54:34  

Additional Information
 Earth MOID = 1.22435 au 
 Jupiter MOID = 1.45068 au 
 T_jup = 3.252 
[ 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 16.1   n/a MPO264761  

305289 (2008 AB4)          Discovered 2008-Jan-08 by Kugel, F. at Chante-Perdrix
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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