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13745 Mikecosta (1998 SL42)
Classification: Main-belt Asteroid          SPK-ID: 2013745
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08130168568591481 6.3435e-08  
a 2.599964508009435 1.6287e-08 au
q 2.388583010784718 1.6243e-07 au
i 1.153001062738779 5.4305e-06 deg
node 332.0216288640478 0.0003088 deg
peri 62.69922653434629 0.00031015 deg
M 63.49960751349447 3.2047e-05 deg
tp 2457330.404034984419
0.00013661 JED
period 1531.26217961183
n .2351001708219939 2.2091e-09 deg/d
Q 2.811346005234152 1.7611e-08 au
  Orbit Determination Parameters
   # obs. used (total)      959  
   data-arc span      14062 days (38.50 yr)  
   first obs. used      1977-09-09  
   last obs. used      2016-03-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54645  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 16:17:42  

Additional Information
 Earth MOID = 1.39368 au 
 Jupiter MOID = 2.5215 au 
 T_jup = 3.410 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4 mag n/a MPO347634  

13745 Mikecosta           Discovered 1998 Sept. 28 by Spacewatch at Kitt Peak.
Mike Costa (b. 1954) is a Canadian amateur astronomer with wide-ranging observing interests, which he pursues with a 0.25-m Newtonian telescope. Costa has been an enthusiastic supporter of the activities of the Royal Astronomical Society of Canada, London Centre.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030614/MPCPages.arcLast Updated: 2005-04-26

[ show close-approach data ]
Alternate Designations
 1998 SL42 = 1977 RN16 = 1990 WF16 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2016-Apr-30 05:16 UT
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