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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1710213036513268 4.3652e-08  
a 3.151267506431032 2.3814e-08 au
q 2.612333629327131 1.4665e-07 au
i .8654722513558991 5.4972e-06 deg
node 185.8696172642427 0.00030317 deg
peri 98.99344622778521 0.00030373 deg
M 21.83837171431458 1.9619e-05 deg
tp 2457476.550697545625
(2016-Mar-29.05069755)
0.00011093 JED
period 2043.272706743351
5.59
2.3161e-05
6.341e-08
d
yr
n .1761879355662623 1.9971e-09 deg/d
Q 3.690201383534934 2.7886e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1578  
   data-arc span      22340 days (61.16 yr)  
   first obs. used      1954-06-07  
   last obs. used      2015-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5029  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:07:27  

Additional Information
 Earth MOID = 1.59582 au 
 Jupiter MOID = 1.46498 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  

2981 Chagall (1981 EE20)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
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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