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JPL Small-Body Database Browser
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146997 (2002 PY91)
Classification: Main-belt Asteroid          SPK-ID: 2146997
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2010052192267817 4.9069e-08  
a 2.31226635187359 1.0885e-08 au
q 1.847488746904528 1.1601e-07 au
i 5.454426951572089 4.7429e-06 deg
node 142.5070192112755 4.609e-05 deg
peri 189.8762671329607 4.7563e-05 deg
M 264.4121824041923 1.0782e-05 deg
tp 2458941.500692792135
(2020-Apr-02.00069279)
3.9267e-05 TDB
period 1284.266682646312
3.52
9.0689e-06
2.483e-08
d
yr
n .2803156111300789 1.9795e-09 deg/d
Q 2.777043956842651 1.3073e-08 au
  Orbit Determination Parameters
   # obs. used (total)      287  
   data-arc span      9203 days (25.20 yr)  
   first obs. used      1994-03-10  
   last obs. used      2019-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50075  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:34:53  

Additional Information
 Earth MOID = .836296 au 
 Jupiter MOID = 2.58361 au 
 T_jup = 3.550 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO432925  

146997 (2002 PY91)          Discovered 2002-Aug-14 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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