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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1706361474970882 4.9032e-08  
a 3.150750264316974 2.7521e-08 AU
q 2.613118377488494 1.5808e-07 AU
i .8652205890000935 5.6185e-06 deg
node 185.8772090225652 0.00033752 deg
peri 98.91747106775487 0.00033802 deg
M 276.1401378001809 2.2453e-05 deg
tp 2457476.351061639095
(2016-Mar-28.85106164)
0.00013026 JED
period 2042.769659958298
5.59
2.6765e-05
7.328e-08
d
yr
n .1762313231181186 2.309e-09 deg/d
Q 3.688382151145455 3.2217e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1469  
   data-arc span      22146 days (60.63 yr)  
   first obs. used      1954-06-07  
   last obs. used      2015-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50028  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:04:36  

Additional Information
 Earth MOID = 1.59819 AU 
 T_jup = 3.185 
[ 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. 2014-Mar-01) 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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