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129439 (1980 PX2)
Classification: Main-belt Asteroid          SPK-ID: 2129439
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1517412775943446 5.042e-08  
a 3.046317120095993 3.4545e-08 au
q 2.584065068335103 1.4459e-07 au
i 21.07496405830126 5.4167e-06 deg
node 69.78576326727266 1.4029e-05 deg
peri 250.7916906642278 2.33e-05 deg
M 175.1067421266435 2.2115e-05 deg
tp 2458055.870593950289
(2017-Oct-29.37059395)
0.00011419 TDB
period 1942.053070303527
5.32
3.3035e-05
9.044e-08
d
yr
n .1853708353828533 3.1532e-09 deg/d
Q 3.508569171856884 3.9787e-08 au
  Orbit Determination Parameters
   # obs. used (total)      566  
   data-arc span      14501 days (39.70 yr)  
   first obs. used      1980-08-09  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54574  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 21:44:23  

Additional Information
 Earth MOID = 1.65362 au 
 Jupiter MOID = 1.90097 au 
 T_jup = 3.119 
[ 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 14.5   n/a MPO417675  
diameter diameter 6.294 km 0.361 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.102   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129439 (1980 PX2)          Discovered 1980-Aug-04 by Royal Observatory Edinburgh at Siding Spring
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

[ show close-approach data ]
Alternate Designations
 1980 PX2 = 2002 UB46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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