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JPL Small-Body Database Browser
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172854 (2005 ED44)
Classification: Main-belt Asteroid          SPK-ID: 2172854
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1547540069033993 6.7913e-08  
a 2.578415954227192 1.8666e-08 au
q 2.179395753846882 1.7714e-07 au
i 5.015910216603223 6.4128e-06 deg
node 348.2399829443861 5.8868e-05 deg
peri 352.6541529206076 6.1619e-05 deg
M 79.86656773923946 1.8461e-05 deg
tp 2458665.001628240207
(2019-Jun-30.50162824)
7.8233e-05 TDB
period 1512.264984616146
4.14
1.6422e-05
4.496e-08
d
yr
n .2380535181745135 2.585e-09 deg/d
Q 2.977436154607501 2.1555e-08 au
  Orbit Determination Parameters
   # obs. used (total)      384  
   data-arc span      9276 days (25.40 yr)  
   first obs. used      1994-09-05  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55312  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:55:05  

Additional Information
 Earth MOID = 1.17115 au 
 Jupiter MOID = 2.41147 au 
 T_jup = 3.404 
[ 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 16.6   n/a MPO502963  

172854 (2005 ED44)          Discovered 2005-Mar-03 by Spacewatch at Kitt Peak
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ show close-approach data ]
Alternate Designations
 2005 ED44 = 1994 RY27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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