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9055 Edvardsson (1992 DP8)
Classification: Main-belt Asteroid          SPK-ID: 2009055
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2770295367993336 3.6285e-08  
a 2.804326205742986 1.1385e-08 au
q 2.027445015931774 1.0181e-07 au
i 7.848411189208361 4.8892e-06 deg
node 196.2750179999736 2.5247e-05 deg
peri 114.9494548641926 2.6341e-05 deg
M 274.1191739188772 7.8479e-06 deg
tp 2459609.699349735849
(2022-Jan-30.19934974)
3.835e-05 TDB
period 1715.304482117525
4.70
1.0446e-05
2.86e-08
d
yr
n .2098752750622933 1.2781e-09 deg/d
Q 3.581207395554198 1.4539e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1578  
   data-arc span      14723 days (40.31 yr)  
   first obs. used      1980-11-29  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51112  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 00:10:20  

Additional Information
 Earth MOID = 1.02678 au 
 Jupiter MOID = 1.81877 au 
 T_jup = 3.253 
[ 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 13.97   n/a E2021B10  
diameter diameter 7.710 km 0.346 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9055 Edvardsson           Discovered 1992 Feb. 29 at the European Southern Observatory in the course of the Uppsala-ESO Survey of Asteroids and Comets.
Uppsala astronomer Bengt Edvardsson (b. 1956) has made significant contributions to the study of abundances of many elements in star atmospheres, especially in the Galactic disk.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030806/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 1992 DP8 = 1980 WK4 = 1984 SW4 = 1989 UE10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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