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JPL Small-Body Database Browser
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442258 (2011 PH8)
Classification: Main-belt Asteroid          SPK-ID: 2442258
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08778544883499796 8.3048e-08  
a 2.640993876231783 4.0567e-08 au
q 2.409153043436294 2.3133e-07 au
i 13.52335269882909 9.5291e-06 deg
node 162.9171861504177 2.1875e-05 deg
peri 140.4859910866269 4.516e-05 deg
M 48.10581413618673 4.0623e-05 deg
tp 2458791.019025104972
(2019-Nov-03.51902511)
0.0001748 TDB
period 1567.651484885313
4.29
3.612e-05
9.889e-08
d
yr
n .2296428788356214 5.2911e-09 deg/d
Q 2.872834709027271 4.4128e-08 au
  Orbit Determination Parameters
   # obs. used (total)      146  
   data-arc span      7623 days (20.87 yr)  
   first obs. used      1998-08-25  
   last obs. used      2019-07-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54784  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:42:54  

Additional Information
 Earth MOID = 1.40992 au 
 Jupiter MOID = 2.41709 au 
 T_jup = 3.350 
[ 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 MPO437720  

442258 (2011 PH8)          Discovered 1998-Aug-25 by ODAS at Caussols
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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