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423321 (2005 ED318)
Classification: Amor [NEO, PHA]          SPK-ID: 2423321
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 69 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4495386056595235 6.7981e-09  
a 1.85014306300295 1.3231e-09 au
q 1.018432330189964 1.2065e-08 au
i 2.389583547156276 2.2269e-06 deg
node 82.06484925630006 3.214e-05 deg
peri 164.2236442801361 3.39e-05 deg
M 349.234844544144 4.8573e-06 deg
tp 2459027.986801069418
(2020-Jun-27.48680107)
1.2431e-05 TDB
period 919.192335453705
2.52
9.8605e-07
2.7e-09
d
yr
n .3916481742880365 4.2013e-10 deg/d
Q 2.681853795815935 1.9179e-09 au
  Orbit Determination Parameters
   # obs. used (total)      601  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      5435 days (14.88 yr)  
   first obs. used      2005-03-10  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36887  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-27 05:45:26  

Additional Information
 Earth MOID = .0089793 au 
 Jupiter MOID = 2.35741 au 
 T_jup = 3.877 
[ 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 20.8   n/a MPO264940  
diameter diameter 0.202 km 0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
rotation period rot_per 17.157 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pravec, P.; Wolf, M.; Sarounova, L. (2005) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.212   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  

423321 (2005 ED318)          Discovered 2005-Mar-10 by LONEOS at Anderson Mesa
Reference: Last Updated: 2015-02-04

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