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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3292716581822541 3.4978e-08  
a 2.593332309678088 1.2423e-08 au
q 1.739421479852769 8.9478e-08 au
i 3.560303819870108 6.3907e-06 deg
node 324.7644450994528 6.3223e-05 deg
peri 73.51346868569087 6.4367e-05 deg
M 175.1255748976283 1.4745e-05 deg
tp 2458654.450705778598
(2019-Jun-19.95070578)
5.8109e-05 TDB
period 1525.406817798389
4.18
1.0961e-05
3.001e-08
d
yr
n .2360026163509521 1.6958e-09 deg/d
Q 3.447243139503407 1.6514e-08 au
  Orbit Determination Parameters
   # obs. used (total)      514  
   data-arc span      22116 days (60.55 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-04-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5181  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 01:18:49  

Additional Information
 Earth MOID = .750452 au 
 Jupiter MOID = 2.01469 au 
 T_jup = 3.337 
[ 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 16.50   n/a E2021B55  
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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