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8510 (1991 PT8)
Classification: Main-belt Asteroid          SPK-ID: 2008510
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1216200259212863 3.6897e-08  
a 2.979453938239858 1.5253e-08 au
q 2.617092673039848 1.1002e-07 au
i 11.81136286637875 4.9535e-06 deg
node 154.635620236619 2.0453e-05 deg
peri 280.2922960357942 2.9417e-05 deg
M 106.320093284162 2.0264e-05 deg
tp 2458445.725758082265
(2018-Nov-23.22575808)
0.00010511 TDB
period 1878.466439608889
5.14
1.4425e-05
3.949e-08
d
yr
n .1916456916179747 1.4716e-09 deg/d
Q 3.341815203439868 1.7108e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1450  
   data-arc span      10495 days (28.73 yr)  
   first obs. used      1991-08-05  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52542  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:58:57  

Additional Information
 Earth MOID = 1.66426 au 
 Jupiter MOID = 1.96235 au 
 T_jup = 3.217 
[ 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 13.6   n/a MPO384832  
diameter diameter 7.647 km 0.105 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.132   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8510 (1991 PT8)          Discovered 1991-Aug-05 by Holt, H. E. at Palomar
Reference: 19980313/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 PT8 = 1992 WV8 = 1994 EA9 = 1995 OD10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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