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3032 Evans (1984 CA1)
Classification: Main-belt Asteroid          SPK-ID: 2003032
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram
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 2-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 has stopped working because of a recent Java upgrade, here is a possible workaround.
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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08460487238545811 6.5148e-08  
a 2.893028677393089 2.0521e-08 au
q 2.648264355334776 1.8875e-07 au
i 3.225152589091286 4.5327e-06 deg
node 88.40255205573007 0.00011691 deg
peri 275.4800998655526 0.00012014 deg
M 5.299462051733206 3.0213e-05 deg
tp 2457574.042011661987
0.00015071 JED
period 1797.328805962415
n .2002972404413398 2.1311e-09 deg/d
Q 3.137792999451403 2.2257e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1516  
   data-arc span      22990 days (62.94 yr)  
   first obs. used      1952-11-12  
   last obs. used      2015-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53985  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Nov-30 15:40:58  

Additional Information
 Earth MOID = 1.64726 au 
 Jupiter MOID = 2.27218 au 
 T_jup = 3.282 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.5 mag n/a MPO263373  
diameter diameter 22.97 km 2.4 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2
geometric albedo albedo 0.0923   0.023 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2

3032 Evans (1984 CA1)          Discovered 1984-Feb-08 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1984 CA1 = 1935 FD = 1952 VA = 1957 TL = 1957 UO = 1969 BF = 1972 XT1 = 1976 PK = 1979 FV2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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