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8550 Hesiodos (1994 PV24)
Classification: Outer Main-belt Asteroid          SPK-ID: 2008550
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2603752075015546 4.089e-08  
a 3.948360423117808 2.6797e-08 au
q 2.920305258657583 1.5886e-07 au
i 2.877399982277843 4.2834e-06 deg
node 23.5021613625869 7.6199e-05 deg
peri 336.1176396194905 7.6463e-05 deg
M 113.0003920939325 6.6957e-06 deg
tp 2458301.000219707308
(2018-Jul-01.50021971)
5.0591e-05 TDB
period 2865.653073452978
7.85
2.9174e-05
7.987e-08
d
yr
n .1256258140020476 1.2789e-09 deg/d
Q 4.976415587578034 3.3775e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2178  
   data-arc span      15100 days (41.34 yr)  
   first obs. used      1979-11-17  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46148  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 23:59:32  

Additional Information
 Earth MOID = 1.91579 au 
 Jupiter MOID = .478832 au 
 T_jup = 2.998 
[ 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 12.36   n/a MPCxxxxx  
diameter diameter 24.725 km 0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
rotation period rot_per 6.719 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Warner, B.D.; Stephens, R.D. (2019) Minor Planet Bull. 46, 43-45.]
geometric albedo albedo 0.046   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

8550 Hesiodos          
Hesiodos (c. 700 B.C.), an early Greek poet, told the story of Pandora, who out of curiosity opened a jar, letting loose all evils on humanity. In the epic poem Works and Days Hesiod affirms his belief in justice and his feeling for the rhythm of life and nature.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000320/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1994 PV24 = 1979 WB6 = 1987 YB4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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