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OSIRIS-REx Flyby

On September 22 2017, the interplanetary probe OSIRIS-REx will fly past the Earth. The Earth will give it a "gravity assist" and put it on a trajectory to reach the asteroid Bennu. If you know where to look and live in the right part of the world, you will have a chance to see it through binoculars or a telescope.

Click on a table row to load a finder chart corresponding to that time, or alternatively, you can go straight to a finder chart for a time near closest approach by clicking here.

Flyby data
Time of closest approachSep 22, 10:51:49
Distance of closest approach23,596 km
Speed at closest approach8.520 km/s
Speed at infinity (rel. to Earth)6.229 km/s

Position Table (click on a row of the table to load a finder chart)

Time Distance (km) Brightness Altitude Azimuth Right ascension Declination Constellation Sun altitude
Sep 22, 05:00:00146,21513.212.2°231.0°0h 4.2m-12° 55'Cetus-22.2°
Sep 22, 05:30:00135,03513.07.1°237.2°0h 1.9m-14° 3'Cetus-18.1°
Sep 22, 06:00:00123,89612.81.6°243.0°23h 59.2m-15° 22'Cetus-13.7°
Sep 22, 06:30:00112,79612.6-4.4°248.5°23h 56.1m-16° 57'Aquarius-9.1°
Sep 22, 07:00:00101,73612.4-11.0°253.6°23h 52.3m-18° 52'Aquarius-4.5°
Sep 22, 07:30:0090,72612.2-18.0°258.4°23h 47.7m-21° 15'Aquarius0.2°
Sep 22, 08:00:0079,78811.9-25.9°262.9°23h 41.9m-24° 16'Aquarius4.9°
Sep 22, 08:30:0068,97011.6-34.7°266.7°23h 33.9m-28° 15'Sculptor9.6°
Sep 22, 09:00:0058,37411.3-44.9°269.5°23h 22.2m-33° 40'Sculptor14.1°
Sep 22, 09:30:0048,21211.0-57.4°269.3°23h 2.8m-41° 21'Grus18.5°
Sep 22, 10:00:0038,95010.6-72.5°254.8°22h 22.9m-52° 26'Grus22.7°
Sep 22, 10:30:0031,59510.3-74.3°167.3°20h 25.0m-66° 14'Pavo26.6°
Sep 22, 11:00:0028,00910.4-45.8°141.2°15h 43.2m-63° 59'Triangulum Australe30.1°
Sep 22, 11:30:0029,90311.1-13.7°140.8°13h 37.7m-41° 1'Centaurus33.1°
Sep 22, 12:00:0036,49612.210.8°145.9°12h 54.9m-21° 17'Corvus35.6°
Sep 22, 12:30:0045,70613.527.1°153.8°12h 33.6m-8° 21'Virgo37.4°
Sep 22, 13:00:0056,18114.837.7°163.9°12h 20.7m-0° 1'Virgo38.6°
Sep 22, 13:30:0067,29415.044.4°175.9°12h 12.0m5° 37'Virgo38.9°
Sep 22, 14:00:0078,75614.948.1°189.1°12h 5.6m9° 37'Virgo38.5°
Sep 22, 14:30:0090,42714.949.5°202.7°12h 0.9m12° 34'Virgo37.3°
Sep 22, 15:00:00102,23515.049.1°215.8°11h 57.1m14° 50'Leo35.4°
Sep 22, 15:30:00114,13615.147.2°227.7°11h 54.2m16° 37'Leo32.8°
Sep 22, 16:00:00126,10415.244.4°238.2°11h 51.8m18° 3'Leo29.7°
Sep 22, 16:30:00138,12215.440.9°247.5°11h 49.9m19° 13'Leo26.2°
Sep 22, 17:00:00150,17415.536.9°255.7°11h 48.3m20° 12'Leo22.3°
 

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