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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1723766898022857 6.8153e-08  
a 2.78597185363517 2.0011e-08 AU
q 2.305735247623201 1.8751e-07 AU
i 8.591168214738371 7.6011e-06 deg
node 167.9512262118735 3.5414e-05 deg
peri 359.191881910237 3.9489e-05 deg
M 240.3277538957307 1.9572e-05 deg
tp 2457565.117656509579
(2016-Jun-25.61765651)
9.6312e-05 JED
period 1698.492031029049
4.65
1.83e-05
5.01e-08
d
yr
n .2119527165410899 2.2836e-09 deg/d
Q 3.266208459647139 2.3461e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1005  
   data-arc span      23354 days (63.94 yr)  
   first obs. used      1951-03-06  
   last obs. used      2015-02-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46837  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 13:59:27  

Additional Information
 Earth MOID = 1.31353 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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