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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04595449340202196 8.3666e-08  
a 2.546212392081769 1.9704e-08 AU
q 2.429202491509701 2.105e-07 AU
i 9.305754342212065 7.8226e-06 deg
node 351.1082416168126 3.6252e-05 deg
peri 290.7577841300039 0.00015754 deg
M 277.3061122976696 0.00016301 deg
tp 2457341.387657683735
(2015-Nov-14.88765768)
0.0006721 JED
period 1484.02209856057
4.06
1.7226e-05
4.716e-08
d
yr
n .2425839887082428 2.8158e-09 deg/d
Q 2.663222292653838 2.0609e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1020  
   data-arc span      22380 days (61.27 yr)  
   first obs. used      1953-02-15  
   last obs. used      2014-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50801  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:40:50  

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 (809)
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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