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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, 10:51:45
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, 05:00:00145,60613.117.7°232.8°0h 3.4m-12° 43'Cetus-26.6°
Sep 22, 05:30:00134,49213.011.9°238.5°0h 0.8m-13° 49'Cetus-21.5°
Sep 22, 06:00:00123,42512.85.6°243.7°23h 58.0m-15° 7'Cetus-16.3°
Sep 22, 06:30:00112,40112.6-1.1°248.3°23h 54.6m-16° 40'Aquarius-10.9°
Sep 22, 07:00:00101,41712.4-8.3°252.6°23h 50.7m-18° 32'Aquarius-5.5°
Sep 22, 07:30:0090,48112.2-16.0°256.3°23h 45.9m-20° 52'Aquarius0.1°
Sep 22, 08:00:0079,61111.9-24.4°259.5°23h 39.7m-23° 49'Aquarius5.6°
Sep 22, 08:30:0068,84811.6-33.7°261.7°23h 31.4m-27° 42'Sculptor11.0°
Sep 22, 09:00:0058,28611.3-44.2°262.2°23h 19.4m-32° 58'Sculptor16.4°
Sep 22, 09:30:0048,12111.0-56.4°258.1°22h 59.5m-40° 25'Grus21.7°
Sep 22, 10:00:0038,79310.6-69.3°236.0°22h 19.5m-51° 10'Grus26.7°
Sep 22, 10:30:0031,27810.3-67.5°171.0°20h 25.9m-64° 38'Pavo31.4°
Sep 22, 11:00:0027,46210.4-40.1°144.3°15h 55.5m-63° 12'Triangulum Australe35.8°
Sep 22, 11:30:0029,20511.0-7.4°140.5°13h 43.5m-40° 29'Centaurus39.7°
Sep 22, 12:00:0035,77612.218.1°143.4°12h 57.7m-20° 36'Virgo42.9°
Sep 22, 12:30:0045,01813.535.2°150.4°12h 35.1m-7° 38'Virgo45.4°
Sep 22, 13:00:0055,53914.846.4°160.8°12h 21.4m0° 40'Virgo46.9°
Sep 22, 13:30:0066,69914.953.5°174.5°12h 12.2m6° 15'Virgo47.5°
Sep 22, 14:00:0078,21214.857.1°190.8°12h 5.5m10° 11'Virgo46.9°
Sep 22, 14:30:0089,93814.957.8°207.6°12h 0.4m13° 5'Virgo45.4°
Sep 22, 15:00:00101,80615.056.2°223.1°11h 56.5m15° 17'Leo42.9°
Sep 22, 15:30:00113,77315.152.9°236.0°11h 53.4m17° 1'Leo39.6°
Sep 22, 16:00:00125,81315.248.7°246.5°11h 51.0m18° 24'Leo35.7°
Sep 22, 16:30:00137,90715.343.9°255.2°11h 49.0m19° 33'Leo31.4°
Sep 22, 17:00:00150,04115.538.8°262.5°11h 47.4m20° 29'Leo26.6°
 

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