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13750 Mattdawson (1998 ST54)
Classification: Main-belt Asteroid          SPK-ID: 2013750
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1386889145709944 1.7331e-08  
a 2.360109251311126 6.9112e-09 au
q 2.032788260977824 4.0536e-08 au
i 6.491520040922871 8.4383e-07 deg
node 11.01328265843894 3.3836e-06 deg
peri 306.1917695504297 5.3096e-06 deg
M 80.14876389852679 4.6578e-06 deg
tp 2458905.656935948943
(2020-Feb-26.15693595)
1.6804e-05 TDB
period 1324.331129956849
3.63
5.8172e-06
1.593e-08
d
yr
n .2718353377464819 1.194e-09 deg/d
Q 2.687430241644428 7.8697e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2238  
   data-arc span      14752 days (40.39 yr)  
   first obs. used      1980-10-13  
   last obs. used      2021-03-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48748  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:07:01  

Additional Information
 Earth MOID = 1.026 au 
 Jupiter MOID = 2.60935 au 
 T_jup = 3.530 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.26   n/a E2021B10  

13750 Mattdawson           Discovered 1998 Sept. 16 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Matthew Dawson (b. 1959), of Roeser, Luxembourg, is an active amateur involved in the astrometry of fast-moving NEOs using a 45-cm telescope. Dawson is also a musician who specializes in contemporary jazz and popular music. He recorded a hit song in Germany in 1991. The name was suggested by R. A. Kowalski.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020724/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1998 ST54 = 1980 TP9 = 1991 VB1 = 1997 EL54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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