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72903 (2001 KO71)
Classification: Main-belt Asteroid          SPK-ID: 2072903
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2409289930844102 4.1976e-08  
a 2.963830941176947 1.3425e-08 au
q 2.249758136846765 1.2799e-07 au
i 11.6988990481147 4.7356e-06 deg
node 206.4801007768062 1.6035e-05 deg
peri 187.7273596930823 1.7898e-05 deg
M 174.3475018368293 8.6898e-06 deg
tp 2458493.907342255831
(2019-Jan-10.40734226)
4.1386e-05 TDB
period 1863.710998807449
5.10
1.2663e-05
3.467e-08
d
yr
n .1931629958885025 1.3124e-09 deg/d
Q 3.677903745507129 1.6659e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1647  
   data-arc span      9200 days (25.19 yr)  
   first obs. used      1996-04-20  
   last obs. used      2021-06-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46436  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 22:50:51  

Additional Information
 Earth MOID = 1.25594 au 
 Jupiter MOID = 1.76556 au 
 T_jup = 3.190 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457562.5 (2016-Jun-23.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2391903636548067 4.1785e-08  
q 2.256753577894394 1.2706e-07 au
tp 2458494.716770090807
(2019-Jan-11.21677009)
4.1737e-05 TDB
node 206.4973990493232 1.6037e-05 deg
peri 187.8291711896078 1.7943e-05 deg
i 11.69255554406159 4.734e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1647  
   data-arc span      9200 days (25.19 yr)  
   first obs. used      1996-04-20  
   last obs. used      2021-06-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46436  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 22:50:51  

Additional Information
 Jupiter MOID = 1.76556 au 
 T_jup = 3.190 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.74599241653327E-15 -5.293869810701381E-15 -8.386770783250945E-13 -2.112414116751397E-15 -1.920330794958479E-13 1.431182728888738E-15
q -5.293869810701381E-15 1.614380372416966E-14 2.698310702825802E-12 5.695744108553208E-15 5.992004815721528E-13 -3.639485823354575E-15
tp -8.386770783250945E-13 2.698310702825802E-12 1.74195590198176E-9 4.501670853709966E-13 3.408640345320909E-10 -2.983038403655527E-12
node -2.112414116751397E-15 5.695744108553208E-15 4.501670853709966E-13 2.571873914332919E-10 -2.513204782748329E-10 -2.39757453894057E-11
peri -1.920330794958479E-13 5.992004815721528E-13 3.408640345320909E-10 -2.513204782748329E-10 3.219635352019978E-10 2.284718399642264E-11
i 1.431182728888738E-15 -3.639485823354575E-15 -2.983038403655527E-12 -2.39757453894057E-11 2.284718399642264E-11 2.241082361679281E-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 13.90   n/a MPO637041  
diameter diameter 7.125 km 0.511 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.105   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

72903 (2001 KO71)          Discovered 2001-May-24 by LONEOS at Anderson Mesa
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 2001 KO71 = 1996 HB27 = 1998 XX81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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