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8841 (1990 EA7)
Classification: Main-belt Asteroid          SPK-ID: 2008841
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04595446419570559 7.5477e-08  
a 2.546212388664121 1.9376e-08 AU
q 2.429202562614594 1.9083e-07 AU
i 9.305753536142428 7.7119e-06 deg
node 351.1082418044393 3.5861e-05 deg
peri 290.757735596601 0.00014293 deg
M 277.306164984164 0.00014634 deg
tp 2457341.387439808729
(2015-Nov-14.88743981)
0.00060314 JED
period 1484.022095572682
4.06
1.6939e-05
4.638e-08
d
yr
n .2425839891966545 2.769e-09 deg/d
Q 2.663222214713648 2.0266e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1035  
   data-arc span      22633 days (61.97 yr)  
   first obs. used      1953-02-15  
   last obs. used      2015-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50756  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:15:40  

Additional Information
 Earth MOID = 1.4327 AU 
 T_jup = 3.423 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.3 mag n/a MPO296208  

8841 (1990 EA7)          Discovered 1990-Mar-02 by Debehogne, H. at La Silla
Reference: 19980610/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 EA7 = 1974 FC2 = 1978 EW2 = 1978 GV = 1988 XP3 = 1994 CU1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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