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117112 (2004 PH9)
Classification: Outer Main-belt Asteroid          SPK-ID: 2117112
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .168118873567039 3.7122e-08  
a 3.21583846060447 2.9785e-08 au
q 2.675195321034086 1.1568e-07 au
i 4.336976789240781 6.098e-06 deg
node 331.8583925030699 5.5242e-05 deg
peri 91.43715134615705 5.8364e-05 deg
M 203.5686372472197 2.1094e-05 deg
tp 2459915.795004794029
(2022-Dec-02.29500479)
0.00013111 TDB
period 2106.394753119888
5.77
2.9264e-05
8.012e-08
d
yr
n .1709081355556862 2.3744e-09 deg/d
Q 3.756481600174854 3.4793e-08 au
  Orbit Determination Parameters
   # obs. used (total)      577  
   data-arc span      7531 days (20.62 yr)  
   first obs. used      1998-09-26  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53612  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:54:26  

Additional Information
 Earth MOID = 1.69293 au 
 Jupiter MOID = 1.60293 au 
 T_jup = 3.164 
[ 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 14.8   n/a MPO396004  
diameter diameter 5.858 km 0.174 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

117112 (2004 PH9)          Discovered 2004-Aug-06 by NEAT at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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