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JPL Small-Body Database Browser
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1064 Aethusa (1926 PA)
Classification: Main-belt Asteroid          SPK-ID: 2001064
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1774378641507946 4.976e-08  
a 2.543375902401559 8.7442e-09 au
q 2.092084714546826 1.2873e-07 au
i 9.503145983934507 5.4345e-06 deg
node 280.561695904479 2.5103e-05 deg
peri 20.3365963388353 2.8117e-05 deg
M 311.6721603441687 1.4913e-05 deg
tp 2458799.388254452067
(2019-Nov-11.88825445)
6.1902e-05 TDB
period 1481.542980456912
4.06
7.6404e-06
2.092e-08
d
yr
n .2429899130492826 1.2531e-09 deg/d
Q 2.994667090256291 1.0296e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2320  
   data-arc span      34058 days (93.25 yr)  
   first obs. used      1926-08-02  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43082  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:00:42  

Additional Information
 Earth MOID = 1.07836 au 
 Jupiter MOID = 2.22474 au 
 T_jup = 3.403 
[ 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 10.6   n/a MPO256869  
diameter diameter 20.007 km 0.173 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 8.621 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2006) Minor Planet Bull. 33, 85-88.]
geometric albedo albedo 0.278   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1064 Aethusa (1926 PA)          Discovered 1926-Aug-02 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1926 PA = 1962 HF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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