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136539 (2144 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2136539
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3289135748235245 3.4995e-08  
a 2.594199625478978 1.2516e-08 au
q 1.740932152856839 8.9587e-08 au
i 3.560155363190447 7.0448e-06 deg
node 324.7633879986581 6.4087e-05 deg
peri 73.55484777854232 6.544e-05 deg
M 81.65662833974523 1.488e-05 deg
tp 2458654.327584735017
(2019-Jun-19.82758474)
6.1068e-05 TDB
period 1526.172118898715
4.18
1.1045e-05
3.024e-08
d
yr
n .2358842725155901 1.707e-09 deg/d
Q 3.447467098101118 1.6632e-08 au
  Orbit Determination Parameters
   # obs. used (total)      502  
   data-arc span      21759 days (59.57 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51797  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 22:39:18  

Additional Information
 Earth MOID = .752584 au 
 Jupiter MOID = 2.01219 au 
 T_jup = 3.337 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456851.5 (2014-Jul-13.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3259566196524034 3.4696e-08  
q 1.750443434523797 8.8684e-08 au
tp 2457123.299524698728
(2015-Apr-10.79952470)
5.4172e-05 TDB
node 325.2023311515212 6.3649e-05 deg
peri 72.66628166742834 6.5102e-05 deg
i 3.573089533084894 7.0577e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      502  
   data-arc span      21759 days (59.57 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51797  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 22:39:18  

Additional Information
 Jupiter MOID = 2.01219 au 
 T_jup = 3.337 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.203832837945452E-15 -3.062431064834136E-15 -5.827859958867697E-14 8.598764252101364E-15 -5.016444104768959E-14 -1.587534288876241E-15
q -3.062431064834136E-15 7.864767969430768E-15 4.983847210011148E-13 -2.441387239606143E-14 2.108346121375831E-13 4.155368050661732E-15
tp -5.827859958867697E-14 4.983847210011148E-13 2.934632713905559E-9 -1.751867062779288E-11 7.457077876314558E-10 1.228530648233446E-12
node 8.598764252101364E-15 -2.441387239606143E-14 -1.751867062779288E-11 4.051146942082461E-9 -4.047339325157651E-9 -3.722691541657613E-11
peri -5.016444104768959E-14 2.108346121375831E-13 7.457077876314558E-10 -4.047339325157651E-9 4.238254803781997E-9 3.754838909613641E-11
i -1.587534288876241E-15 4.155368050661732E-15 1.228530648233446E-12 -3.722691541657613E-11 3.754838909613641E-11 4.981081215314883E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO453848  
diameter diameter 2.759 km 0.557 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.064   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

136539 (2144 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

Alternate Designations
 2144 P-L = 2002 TL290 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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