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

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1618519273039092 3.4035e-08  
a 3.146126522674135 1.6313e-08 au
q 2.636919881437381 1.1268e-07 au
i .3173335117084887 3.6237e-06 deg
node 346.5978361789738 0.00067081 deg
peri 296.3254071866972 0.00067094 deg
M 3.70206641803393 1.1391e-05 deg
tp 2459179.539366317485
(2020-Nov-26.03936632)
6.4511e-05 TDB
period 2038.274648166071
5.58
1.5853e-05
4.34e-08
d
yr
n .1766199664622766 1.3737e-09 deg/d
Q 3.65533316391089 1.8953e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1867  
   data-arc span      14783 days (40.47 yr)  
   first obs. used      1980-03-16  
   last obs. used      2020-09-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52329  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 19:48:42  

Additional Information
 Earth MOID = 1.61857 au 
 Jupiter MOID = 1.49642 au 
 T_jup = 3.189 
[ 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 13.51   n/a E2021B10  
diameter diameter 11.067 km 0.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.231 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.057   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1904-Dec-23 20:44 00:03 Jupiter 1.68548683554889 1.68548560493515 1.68548806616465 2.25806325811712 2.0233072189189 2416838.364008361 2.80795259427496 136.548644065283 4.71977635630116 88.8956182428577 2325723.61136624 T 28 CATAB v2.0f-lin.ifort 2021-Apr-12 19:48:53 2021-Apr-12 19:48
1979-May-03 07:33 < 00:01 Jupiter 1.82715515074703 1.82715452669763 1.82715577479623 2.19171080454628 1.96886954300271 2443996.814600376 0.982425308519541 48.4533058778049 9.40938321995656 -85.3591221772111 2191096.06682606 T 28 CATAB v2.0f-lin.ifort 2021-Apr-12 19:48:53 2021-Apr-12 19:48
1989-Oct-29 19:48 < 00:01 Jupiter 1.52269889711744 1.52269855028103 1.52269924395393 1.36265323287042 0.862725867584119 2447829.324893328 0.678953955563344 207.11427980102 90.9842428271247 -18.3673041586364 2576678.00171851 T 28 CATAB v2.0f-lin.ifort 2021-Apr-12 19:48:53 2021-Apr-12 19:48
2000-Apr-21 20:18 < 00:01 Jupiter 1.61823744415395 1.61823705631951 1.6182378319882 1.92597231185906 1.6317241116901 2451656.346075297 0.396687093718968 49.0362559621265 17.7973545233125 85.1924742240544 2625573.55412164 T 28 CATAB v2.0f-lin.ifort 2021-Apr-12 19:48:53 2021-Apr-12 19:48
2010-Oct-10 22:03 < 00:01 Jupiter 1.99242580213044 1.99242534726117 1.99242625699971 3.86894826572212 3.75746167237627 2455480.418833559 0.192337986752945 32.9271952083422 18.0839510795551 -79.3278530868111 3513505.35189196 T 28 CATAB v2.0f-lin.ifort 2021-Apr-12 19:48:53 2021-Apr-12 19:48
2074-Aug-21 05:05 00:01 Jupiter 1.91893848021214 1.91893749563602 1.91893946478804 2.47742165061605 2.29233829079865 2478805.711460956 1.3756037283726 55.6293449190411 17.1118320285105 -75.811269184171 1702101.54651084 T 28 CATAB v2.0f-lin.ifort 2021-Apr-12 19:48:53 2021-Apr-12 19:48
2085-Feb-18 05:29 00:02 Jupiter 1.57395623974514 1.57395558842246 1.57395689106692 1.45876216893472 1.02551921327962 2482639.728574611 1.69105922698677 155.116720957868 66.2287018808925 -21.7988384505803 1925099.38020235 T 28 CATAB v2.0f-lin.ifort 2021-Apr-12 19:48:53 2021-Apr-12 19:48
2095-Aug-15 21:09 00:02 Jupiter 1.57494658148795 1.57494581280501 1.57494735016983 1.69784220299098 1.34426467774628 2486470.381571966 2.06925138082238 100.923189064391 47.751140954985 37.9228913363885 1501623.3486471 T 28 CATAB v2.0f-lin.ifort 2021-Apr-12 19:48:53 2021-Apr-12 19:48
2106-Jan-29 00:42 00:02 Jupiter 1.91703715196392 1.91703567918263 1.91703862474684 3.44049654498538 3.30958270955626 2490288.528840539 2.29909811823274 123.432329665912 16.8353360819232 -64.6591958445906 2678609.91942582 T 28 CATAB v2.0f-lin.ifort 2021-Apr-12 19:48:53 2021-Apr-12 19:48
2169-Dec-06 20:22 00:04 Jupiter 1.99894941378166 1.9989472177363 1.99895160982793 2.75534548912377 2.59701002777661 2513611.348832519 3.61844894435344 142.096857960909 21.5952961758746 -63.3153260823702 1858184.52994534 T 28 CATAB v2.0f-lin.ifort 2021-Apr-12 19:48:53 2021-Apr-12 19:48
2180-Jun-08 18:46 00:04 Jupiter 1.62985404623283 1.62985238259622 1.62985570986425 1.57352008855803 1.1985745598978 2517448.281812752 3.99111044558013 155.567495755652 62.0805580533643 -10.0679416501203 796318.443099691 T 28 CATAB v2.0f-lin.ifort 2021-Apr-12 19:48:53 2021-Apr-12 19:48
2190-Dec-09 22:59 00:04 Jupiter 1.54236992079668 1.54236906703027 1.54237077456011 1.52750248456198 1.11127172623775 2521284.457816651 4.37377559863835 227.333708432136 65.771814575782 0.214740718161616 896374.019240375 T 28 CATAB v2.0f-lin.ifort 2021-Apr-12 19:48:53 2021-Apr-12 19:48

Alternate Designations
 1980 FW2 = 1993 QA4 = 1999 TS324 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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