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228883 Cliffsimak (2003 PT4)
Classification: Main-belt Asteroid          SPK-ID: 2228883
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .107384780207393 8.4089e-08  
a 3.011871482938885 3.3865e-08 au
q 2.688442325730578 2.6611e-07 au
i 9.401534678182861 6.7097e-06 deg
node 234.8922535656892 4.4364e-05 deg
peri 122.8507172407471 5.2339e-05 deg
M 44.29118332667507 2.4298e-05 deg
tp 2458765.608195466706
0.00012965 TDB
period 1909.207279658691
n .1885599347098432 3.1802e-09 deg/d
Q 3.335300640147192 3.7502e-08 au
  Orbit Determination Parameters
   # obs. used (total)      337  
   data-arc span      6409 days (17.55 yr)  
   first obs. used      2002-05-11  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5318  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 15:42:35  

Additional Information
 Earth MOID = 1.70004 au 
 Jupiter MOID = 2.17266 au 
 T_jup = 3.220 
[ 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 15.3   n/a MPO494257  
diameter diameter 3.248 km 1.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.167   0.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

228883 Cliffsimak           Discovered 2003 Aug. 2 by B. Christophe at Saint-Sulpice.
Clifford Donald Simak (1904-1988) was an American science-fiction writer. He received three Hugo awards and was named Grand Master in 1977. The discoverer's favorites among his novels are Time And Again, Way Station and Ring Around The Sun.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100330/MPCPages.arcLast Updated: 2010-04-05

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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