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8510 (1991 PT8)
Classification: Main-belt Asteroid          SPK-ID: 2008510
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1220705689128828 6.481e-08  
a 2.980389308733936 2.9119e-08 AU
q 2.616571490234911 1.9186e-07 AU
i 11.81029099443104 8.7439e-06 deg
node 154.6487672886331 3.5676e-05 deg
peri 281.0589061959139 5.4058e-05 deg
M 82.34668401940512 3.8374e-05 deg
tp 2456570.615747063206
(2013-Oct-05.11574706)
0.00019882 JED
period 1879.351098348742
5.15
2.7542e-05
7.541e-08
d
yr
n .1915554790780219 2.8073e-09 deg/d
Q 3.344207127232962 3.2674e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      712  
   data-arc span      8635 days (23.64 yr)  
   first obs. used      1991-08-05  
   last obs. used      2015-03-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54505  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:32:04  

Additional Information
 Earth MOID = 1.66331 AU 
 T_jup = 3.216 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5 mag n/a MPO279605  

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 | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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