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2981 Chagall (1981 EE20)
Classification: Main-belt Asteroid          SPK-ID: 2002981
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1702888030113097 5.0002e-08  
a 3.15261072009028 2.8751e-08 AU
q 2.615756414205483 1.5992e-07 AU
i .8645600800260963 5.6167e-06 deg
node 185.8964463156041 0.00034208 deg
peri 98.71347535412686 0.00034258 deg
M 241.0818605254757 2.2755e-05 deg
tp 2457475.882112175045
(2016-Mar-28.38211218)
0.00013359 JED
period 2044.579249703979
5.60
2.7969e-05
7.657e-08
d
yr
n .1760753465790685 2.4087e-09 deg/d
Q 3.689465025975077 3.3647e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1457  
   data-arc span      21908 days (59.98 yr)  
   first obs. used      1954-06-07  
   last obs. used      2014-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50137  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:23:57  

Additional Information
 Earth MOID = 1.59892 AU 
 T_jup = 3.184 
[ 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 12.5 mag n/a MPO259358  
rotation period rot_per 0.11232 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]

2981 Chagall (1981 EE20)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring (413)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1981 EE20 = 1954 LF = 1977 RN3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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