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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1216611960515221 3.6572e-08  
a 2.978968871780813 1.5003e-08 au
q 2.616543955839706 1.0882e-07 au
i 11.8117246448168 4.7872e-06 deg
node 154.6375687365252 2.0168e-05 deg
peri 280.2032089624601 2.8814e-05 deg
M 144.7522249194338 1.9705e-05 deg
tp 2458445.372786779538
(2018-Nov-22.87278678)
0.00010198 TDB
period 1878.007726034403
5.14
1.4187e-05
3.884e-08
d
yr
n .1916925021177497 1.4481e-09 deg/d
Q 3.34139378772192 1.6828e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1537  
   data-arc span      10819 days (29.62 yr)  
   first obs. used      1991-08-05  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51896  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 23:58:00  

Additional Information
 Earth MOID = 1.66332 au 
 Jupiter MOID = 1.96299 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 13.64   n/a E2021B10  
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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