[current map by Steve Preston showing the path]
Link to this event
2020 Sept 5 UT, (552)_Sigelinde
Summary (from asteroidoccultations.com)

                      IOTA/IOTA-ES occultation update for                      
       (552) Sigelinde / TYC 5757-00560-1 event on 2020 Sep 05, 06:23 UT       
                            Visible from USA, Mexico                           


Summary
-------
On 2020 Sep 05 UT, the 84.2 km diameter asteroid (552) Sigelinde will occult a
11.8 mag star in the constellation Aquarius for observers along a path across
USA, Mexico.

In the case of an occultation, the combined light of the asteroid and the star
will drop by  2.59 mag to 14.27 mag (the magnitude of the asteroid) for at most
10.0 seconds.

This update is based on UNSO/Flagstaff astrometry for the asteroid kindly
provided by Hugh Harris, astrometry for the asteroid kindly provided by Bill
Owen, astrometry for the asteroid kindly provided by the IAU Minor Planet
Center.

This work has made use of data from the European Space Agency (ESA)
mission Gaia (http://www.cosmos.esa.int/gaia), processed by the
Gaia Data Processing and Analysis Consortium
(DPAC, http://www.cosmos.esa.int/web/gaia/dpac/consortium).
Funding for the DPAC has been provided by national institutions, in
particular the institutions participating in the Gaia Multilateral Agreement.

The event at a glimpse
----------------------
    * Rank: 99
    * date and approx. time of event: 2020 Sep 05, 06:12 - 2020 Sep 05, 06:35
    * geocentric midpoint of event [JD]: 2459097.76656250
    * magnitude of target star: 11.79
    * magnitude drop [mag]: 2.59
    * estimated maximum duration [s]: 10.0
    * Moon: 92 % sunlit, 63 distance
    * Sun: 150 distance
    * rough path description: USA, Mexico

Additional comments
-------------------
duplicated source flag

The occultation path
--------------------
    * approximate projected width [km]: 93
    * 1 sigma uncertainty interval [path widths]: +/- 0.26
    * 1 sigma uncertainty interval [seconds]: +/- 4.4
    * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.023, +/- 0.016)
    * 1 sigma uncertainty ellipse (major, minor, PA): (0.024", 0.014", 69)
    * approx speed of asteroid's shadow [km/s]: 8.3959
    * website for maps:
          http://www.asteroidoccultation.com
Expect a North shift based on a recent occultation observation
The maps below show offsets of +69 and -23 to show, between the dark gray lines, where the actual path is likely to be with the 1/4th path-width north shift.
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