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154757 (2004 PX9)
Classification: Main-belt Asteroid          SPK-ID: 2154757
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1032837193825657 5.7253e-08  
a 2.677826062754722 2.178e-08 au
q 2.401250227133843 1.5232e-07 au
i 1.863636121542526 4.0212e-06 deg
node 277.4520898901028 0.00019405 deg
peri 79.22525947846729 0.00019494 deg
M 276.020032805046 2.2011e-05 deg
tp 2459769.874946151422
(2022-Jul-09.37494615)
0.00010038 TDB
period 1600.560051452226
4.38
1.9527e-05
5.346e-08
d
yr
n .2249212703224496 2.744e-09 deg/d
Q 2.954401898375602 2.4029e-08 au
  Orbit Determination Parameters
   # obs. used (total)      344  
   data-arc span      7143 days (19.56 yr)  
   first obs. used      2000-09-21  
   last obs. used      2020-04-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52914  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:37:16  

Additional Information
 Earth MOID = 1.39684 au 
 Jupiter MOID = 2.45894 au 
 T_jup = 3.369 
[ 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 16.38   n/a E2021B55  
diameter diameter 2.957 km 0.860 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.073   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

154757 (2004 PX9)          Discovered 2004-Aug-06 by CINEOS at Campo Imperatore
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ show close-approach data ]
Alternate Designations
 2004 PX9 = 2000 SO291 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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