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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
Additional Information
|
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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.arc | Last Updated: 2009-11-17 |
|
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Alternate Designations
| 1980 FW2 = 1993 QA4 = 1999 TS324 |
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