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442613 (2012 PE20)
Classification: Main-belt Asteroid          SPK-ID: 2442613
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1989703033639534 7.8551e-08  
a 2.234341598179892 2.4191e-08 au
q 1.789773972571338 1.713e-07 au
i 4.456819291413437 7.2265e-06 deg
node 267.1443007606471 8.4319e-05 deg
peri 330.5728874782955 8.7217e-05 deg
M 185.0898509738948 2.0149e-05 deg
tp 2459593.200498647280
(2022-Jan-13.70049865)
7.3386e-05 TDB
period 1219.895933432515
3.34
1.9812e-05
5.424e-08
d
yr
n .2951071399894254 4.7927e-09 deg/d
Q 2.678909223788445 2.9004e-08 au
  Orbit Determination Parameters
   # obs. used (total)      80  
   data-arc span      4277 days (11.71 yr)  
   first obs. used      2008-02-12  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53887  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 16:00:56  

Additional Information
 Earth MOID = .779223 au 
 Jupiter MOID = 2.33941 au 
 T_jup = 3.609 
[ 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 18.1   n/a E2015L32  

442613 (2012 PE20)          Discovered 2008-Feb-12 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

Alternate Designations
 2012 PE20 = 2008 EK133 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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