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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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1228941852183868 6.2029e-08  
a 2.971685826025471 1.893e-08 au
q 2.606482917711042 1.9269e-07 au
i 21.51765121235568 5.9392e-06 deg
node 327.6365121038759 9.2082e-06 deg
peri 353.6929847254683 1.8061e-05 deg
M 348.5204858923695 1.4307e-05 deg
tp 2459060.165566915737
(2020-Jul-29.66556692)
7.4277e-05 TDB
period 1871.12484799229
5.12
1.7879e-05
4.895e-08
d
yr
n .1923976373817485 1.8384e-09 deg/d
Q 3.336888734339901 2.1257e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2978  
   data-arc span      24051 days (65.85 yr)  
   first obs. used      1954-09-27  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .32882  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:00:16  

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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