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8563 (1995 US)
Classification: Main-belt Asteroid          SPK-ID: 2008563
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 .122894186241702 6.2138e-08  
a 2.971685825386207 2.1991e-08 au
q 2.606482914109369 1.9333e-07 au
i 21.51765294664609 6.0728e-06 deg
node 327.6365193254668 1.0423e-05 deg
peri 353.6929785727827 1.935e-05 deg
M 348.5204856000808 1.6889e-05 deg
tp 2459060.165568415675
(2020-Jul-29.66556842)
8.7887e-05 TDB
period 1871.12484738852
5.12
2.077e-05
5.687e-08
d
yr
n .1923976374438309 2.1357e-09 deg/d
Q 3.336888736663045 2.4694e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2768  
   data-arc span      23667 days (64.80 yr)  
   first obs. used      1954-09-27  
   last obs. used      2019-07-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .33793  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 21:18:12  

Additional Information
 Earth MOID = 1.59521 au 
 Jupiter MOID = 2.0206 au 
 T_jup = 3.146 
[ 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 11.7   n/a MPO347594  
diameter diameter 14.473 km 0.201 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.197 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Papini, R.; Marchini, A.; Marullo, S. (2016) Minor Planet Bull. 43, 88.]
geometric albedo albedo 0.147   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

8563 (1995 US)          Discovered 1995-Oct-19 by Spahr, T. B. at Catalina Station
Reference: 19980313/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 US = 1974 QC1 = 1974 SL3 = 1977 DS = 1979 RL = 1987 AS 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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