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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04595446701327077 7.6116e-08  
a 2.54621238978332 1.9459e-08 AU
q 2.429202556508241 1.9236e-07 AU
i 9.305753674261124 7.7646e-06 deg
node 351.1082442614771 3.5942e-05 deg
peri 290.7577325945634 0.00014436 deg
M 277.3061649780047 0.00014791 deg
tp 2457341.387440058877
(2015-Nov-14.88744006)
0.00060962 JED
period 1484.022096551143
4.06
1.7012e-05
4.658e-08
d
yr
n .2425839890367114 2.7809e-09 deg/d
Q 2.663222223058399 2.0353e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1024  
   data-arc span      22624 days (61.94 yr)  
   first obs. used      1953-02-15  
   last obs. used      2015-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50753  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:24:31  

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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