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

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08146423016526384 4.2439e-08  
a 2.600506637185852 9.8321e-09 au
q 2.388658365947848 1.1201e-07 au
i 1.150543246548874 4.2269e-06 deg
node 331.7433722464381 0.00020738 deg
peri 64.51357928511142 0.00020877 deg
M 30.86230889696399 2.2853e-05 deg
tp 2458869.185921704936
(2020-Jan-20.68592170)
9.7275e-05 TDB
period 1531.741139136653
4.19
8.6869e-06
2.378e-08
d
yr
n .2350266574435088 1.3329e-09 deg/d
Q 2.812354908423857 1.0633e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1473  
   data-arc span      15487 days (42.40 yr)  
   first obs. used      1977-09-09  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50915  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:44:38  

Additional Information
 Earth MOID = 1.39563 au 
 Jupiter MOID = 2.50914 au 
 T_jup = 3.410 
[ 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 14.5   n/a MPO502273  
diameter diameter 3.731 km 0.358 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.265   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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

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Alternate Designations
 1998 SL42 = 1977 RN16 = 1990 WF16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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