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JPL Small-Body Database Browser
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172873 (2005 EC143)
Classification: Main-belt Asteroid          SPK-ID: 2172873
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1147702258904763 3.4409e-08  
a 2.301371632934425 1.1242e-08 au
q 2.037242690764606 7.8068e-08 au
i 3.639367036866844 4.247e-06 deg
node 53.52377782912139 7.197e-05 deg
peri 27.09377104738044 7.5878e-05 deg
M 221.0462512544063 2.4085e-05 deg
tp 2459492.705347066618
(2021-Oct-05.20534707)
8.6454e-05 TDB
period 1275.200752362584
3.49
9.3442e-06
2.558e-08
d
yr
n .2823084909046849 2.0687e-09 deg/d
Q 2.565500575104243 1.2533e-08 au
  Orbit Determination Parameters
   # obs. used (total)      483  
   data-arc span      7740 days (21.19 yr)  
   first obs. used      1998-03-21  
   last obs. used      2019-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59077  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:55:27  

Additional Information
 Earth MOID = 1.05366 au 
 Jupiter MOID = 2.62921 au 
 T_jup = 3.580 
[ 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 16.9   n/a MPO433110  

172873 (2005 EC143)          Discovered 2005-Mar-10 by CSS at Catalina
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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