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72902 (2001 KE71)
Classification: Main-belt Asteroid          SPK-ID: 2072902
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .190421176597019 7.0316e-08  
a 2.977550641150462 2.0672e-08 au
q 2.410561944685382 2.1261e-07 au
i 11.06251473048174 5.07e-06 deg
node 59.28638277020813 2.5975e-05 deg
peri 312.5310933289699 2.8219e-05 deg
M 118.8875709991464 1.0556e-05 deg
tp 2458380.743464857864
(2018-Sep-19.24346486)
5.4613e-05 TDB
period 1876.666759831192
5.14
1.9543e-05
5.351e-08
d
yr
n .1918294753791997 1.9977e-09 deg/d
Q 3.544539337615541 2.4608e-08 au
  Orbit Determination Parameters
   # obs. used (total)      859  
   data-arc span      11796 days (32.30 yr)  
   first obs. used      1987-09-19  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53835  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 11:37:07  

Additional Information
 Earth MOID = 1.42798 au 
 Jupiter MOID = 1.96994 au 
 T_jup = 3.205 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457050.5 (2015-Jan-28.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1864107203173493 6.9637e-08  
q 2.427782486022415 2.0939e-07 au
tp 2456499.225709705760
(2013-Jul-25.72570971)
6.0431e-05 TDB
node 59.57132093199406 2.6024e-05 deg
peri 312.0412608863674 2.8447e-05 deg
i 11.04249224995517 5.056e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      859  
   data-arc span      11796 days (32.30 yr)  
   first obs. used      1987-09-19  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53835  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 11:37:07  

Additional Information
 Jupiter MOID = 1.96994 au 
 T_jup = 3.205 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.849249903364946E-15 -1.453379372976385E-14 3.262080993718417E-13 -1.271396405104202E-14 -1.563636847346887E-13 6.142564285546641E-16
q -1.453379372976385E-14 4.384357391073364E-14 -1.315477707418395E-12 4.15744886944211E-14 4.162164489719172E-13 -2.87006413969575E-15
tp 3.262080993718417E-13 -1.315477707418395E-12 3.65194629704277E-9 4.301765057594717E-12 7.031986728581709E-10 -3.97443066460163E-12
node -1.271396405104202E-14 4.15744886944211E-14 4.301765057594717E-12 6.772293109426751E-10 -6.624638829076399E-10 -3.524000122927951E-11
peri -1.563636847346887E-13 4.162164489719172E-13 7.031986728581709E-10 -6.624638829076399E-10 8.092599404027598E-10 3.369808289314517E-11
i 6.142564285546641E-16 -2.87006413969575E-15 -3.97443066460163E-12 -3.524000122927951E-11 3.369808289314517E-11 2.556357079914652E-11

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 14.4   n/a MPO468673  
diameter diameter 5.001 km 2.113 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.148   0.102 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

72902 (2001 KE71)          Discovered 2001-May-24 by LONEOS at Anderson Mesa
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 KE71 = 1987 SQ8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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