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7548 Engstrom (1980 FW2)
Classification: Main-belt Asteroid          SPK-ID: 2007548
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1595791581171585 5.1107e-08  
a 3.144985460455655 3.3962e-08 AU
q 2.643111328385438 1.6865e-07 AU
i .3175072594582241 6.6346e-06 deg
node 346.7291458540405 0.00096196 deg
peri 296.3476830952966 0.00096221 deg
M 334.7417941164121 2.8402e-05 deg
tp 2457143.430985462272
(2015-Apr-30.93098546)
0.00016169 JED
period 2037.16586219816
5.58
3.2998e-05
9.034e-08
d
yr
n .1767160969463477 2.8625e-09 deg/d
Q 3.646859592525873 3.9381e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1068  
   data-arc span      12462 days (34.12 yr)  
   first obs. used      1980-03-16  
   last obs. used      2014-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52742  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:10:44  

Additional Information
 Earth MOID = 1.62802 AU 
 T_jup = 3.189 
[ 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 13.4 mag n/a MPO263416  

7548 Engström           Discovered 1980 Mar. 16 by C.-I. Lagerkvist at the European Southern Observatory.
Named in memory of Albert Engström (1869-1940), Swedish artist and writer. Born in Lönneberga in the Swedish province of Småland, he went as a student to Uppsala in 1889, where he studied Greek and Latin before his artistic ambitions made him move to an art school in Gothenburg. Probably Sweden's best painter of caricatures, he is best known for his black and white drawings illustrating very short stories. He was also an outstanding writer, specializing in short stories. Appointed professor of drawing at the Swedish academy of art, in 1922 he became a member of the prestigious Swedish academy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980411/MPCPages.arcLast Updated: 2009-11-17

[ show close-approach data ]
Alternate Designations
 1980 FW2 = 1993 QA4 = 1999 TS324 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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