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90589 (2587 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2090589
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1149030814902579 3.9922e-08  
a 2.745768683626518 1.1325e-08 au
q 2.430271400818382 1.1164e-07 au
i 3.942104569514163 4.414e-06 deg
node 189.4946724088276 5.1109e-05 deg
peri 176.6323697252559 5.3625e-05 deg
M 43.43208098402039 1.5366e-05 deg
tp 2458800.005489735213
(2019-Nov-12.50548974)
7.0919e-05 TDB
period 1661.859668245671
4.55
1.0281e-05
2.815e-08
d
yr
n .2166247890112353 1.3402e-09 deg/d
Q 3.061265966434653 1.2626e-08 au
  Orbit Determination Parameters
   # obs. used (total)      901  
   data-arc span      21611 days (59.17 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54382  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:14:24  

Additional Information
 Earth MOID = 1.42864 au 
 Jupiter MOID = 2.40058 au 
 T_jup = 3.335 
[ 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 15.2   n/a MPO263995  
diameter diameter 2.295 km 0.709 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.306   0.167 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

90589 (2587 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 2587 P-L = 2001 RH11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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