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15281 (1991 PT16)
Classification: Main-belt Asteroid          SPK-ID: 2015281
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06699069195315509 8.2022e-08  
a 2.910772501743052 3.0931e-08 au
q 2.715777837733069 2.4574e-07 au
i 2.40200329348448 9.1809e-06 deg
node 152.3534129474097 0.0001438 deg
peri 169.4537976600276 0.00015542 deg
M 29.23790323620295 6.2166e-05 deg
tp 2457453.182430276529
(2016-Mar-05.68243028)
0.00031232 JED
period 1813.889480104084
4.97
2.8913e-05
7.916e-08
d
yr
n .1984685417434267 3.1635e-09 deg/d
Q 3.105767165753035 3.3003e-08 au
  Orbit Determination Parameters
   # obs. used (total)      983  
   data-arc span      8745 days (23.94 yr)  
   first obs. used      1991-08-07  
   last obs. used      2015-07-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54978  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:43:08  

Additional Information
 Earth MOID = 1.70254 au 
 Jupiter MOID = 2.09771 au 
 T_jup = 3.279 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.1 mag n/a MPO263484  

15281 (1991 PT16)          Discovered 1991-Aug-07 by Holt, H. E. at Palomar
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 PT16 = 1996 TK61 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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