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8652 Acacia (1990 EA5)
Classification: Main-belt Asteroid          SPK-ID: 2008652
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1708757499759276 3.8572e-08  
a 2.466704202872265 8.481e-09 au
q 2.045204272237694 9.3861e-08 au
i 1.852163374874281 4.2256e-06 deg
node 302.3824017144357 0.00010583 deg
peri 350.5582510426696 0.0001063 deg
M 186.0319892765852 9.7287e-06 deg
tp 2459684.318638926464
(2022-Apr-14.81863893)
3.9118e-05 TDB
period 1415.057337207304
3.87
7.2978e-06
1.998e-08
d
yr
n .2544066523201671 1.312e-09 deg/d
Q 2.888204133506836 9.9302e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1857  
   data-arc span      25672 days (70.29 yr)  
   first obs. used      1949-12-22  
   last obs. used      2020-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52447  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:00:54  

Additional Information
 Earth MOID = 1.02909 au 
 Jupiter MOID = 2.29604 au 
 T_jup = 3.466 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2   n/a MPO452292  
diameter diameter 4.098 km 0.185 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.290   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8652 Acacia           Discovered 1990 Mar. 2 by E. W. Elst at the European Southern Observatory
Named for Acacia, belonging to the family Mimosaceae. Acacia mearnsii (mimosa) is a shrub with feathery leaves composed of many small leaflets. The strongly scented tiny yellow flowers are grouped in loose, rounded clusters.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990402/MPCPages.arcLast Updated: 2010-06-11

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Alternate Designations
 1990 EA5 = 1979 MC1 = 1990 GQ = 1991 SW1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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