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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1767934731487687 1.6676e-08  
a 2.543172859284909 6.552e-09 au
q 2.093556496674245 4.2375e-08 au
i 9.503938398942047 8.5857e-07 deg
node 280.5611061897052 1.7216e-06 deg
peri 20.33243846788349 7.2025e-06 deg
M 145.1335940370997 5.5079e-06 deg
tp 2458799.289140187355
(2019-Nov-11.78914019)
2.1929e-05 TDB
period 1481.365571899183
4.06
5.7247e-06
1.567e-08
d
yr
n .2430190135568376 9.3914e-10 deg/d
Q 2.992789221895573 7.7104e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3534  
   data-arc span      34599 days (94.73 yr)  
   first obs. used      1926-08-02  
   last obs. used      2021-04-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .35948  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 07:17:47  

Additional Information
 Earth MOID = 1.08011 au 
 Jupiter MOID = 2.22667 au 
 T_jup = 3.403 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.68   n/a MPO636077  
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. 2020-October); 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.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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

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