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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1706361510813071 5.0121e-08  
a 3.150750266369391 2.8155e-08 AU
q 2.613118367897715 1.6051e-07 AU
i .8652205740655359 5.6193e-06 deg
node 185.8772355017167 0.00034178 deg
peri 98.91744547183677 0.00034228 deg
M 276.1401360924143 2.2955e-05 deg
tp 2457476.351071794536
(2016-Mar-28.85107179)
0.00013333 JED
period 2042.769661954305
5.59
2.7381e-05
7.497e-08
d
yr
n .1762313229459214 2.3622e-09 deg/d
Q 3.688382164841067 3.2959e-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 = 1.59819 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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