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180568 (2004 EC84)
Classification: Main-belt Asteroid          SPK-ID: 2180568
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2563458165820846 5.5053e-08  
a 2.675250343180726 1.5316e-08 au
q 1.989461109396561 1.501e-07 au
i 2.962928635773144 6.72e-06 deg
node 326.4224621009341 0.00010349 deg
peri 269.3195259283185 0.00010448 deg
M 271.9722562117455 1.6971e-05 deg
tp 2459591.306824928710
(2022-Jan-11.80682493)
7.7262e-05 TDB
period 1598.251311685985
4.38
1.3725e-05
3.758e-08
d
yr
n .2252461783499107 1.9343e-09 deg/d
Q 3.361039576964892 1.9242e-08 au
  Orbit Determination Parameters
   # obs. used (total)      331  
   data-arc span      8060 days (22.07 yr)  
   first obs. used      1998-12-25  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58626  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 11:43:37  

Additional Information
 Earth MOID = .979363 au 
 Jupiter MOID = 1.66875 au 
 T_jup = 3.329 
[ 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 MPO454241  

180568 (2004 EC84)          Discovered 2004-Mar-14 by NEAT at Palomar
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ show close-approach data ]
Alternate Designations
 2004 EC84 = 1998 YN20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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