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5556 (1988 AL)
Classification: Main-belt Asteroid          SPK-ID: 2005556
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1726476960770117 6.5026e-08  
a 2.786240018504721 1.8646e-08 au
q 2.30520209859231 1.8035e-07 au
i 8.591365003746391 7.2454e-06 deg
node 167.9515360270479 3.4795e-05 deg
peri 359.1855763782755 3.8619e-05 deg
M 325.1386233427013 1.9047e-05 deg
tp 2457565.000888413657
(2016-Jun-25.50088841)
9.0919e-05 JED
period 1698.737270506434
4.65
1.7053e-05
4.669e-08
d
yr
n .2119221178285418 2.1274e-09 deg/d
Q 3.267277938417132 2.1865e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1041  
   data-arc span      23666 days (64.79 yr)  
   first obs. used      1951-03-06  
   last obs. used      2015-12-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47136  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 12:56:48  

Additional Information
 Earth MOID = 1.3122 au 
 Jupiter MOID = 1.70877 au 
 T_jup = 3.293 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6 mag n/a MPO319154  

5556 (1988 AL)          Discovered 1988-Jan-15 by Ueda and Kaneda at Kushiro
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1988 AL = 1951 EC 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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