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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, 12:51:45
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, 07:00:00148,34213.2-7.2°260.0°0h 1.3m-12° 22'Cetus0.3°
Sep 22, 07:30:00137,35713.0-14.0°264.1°23h 59.4m-13° 25'Cetus6.1°
Sep 22, 08:00:00126,35512.8-21.0°268.1°23h 57.2m-14° 38'Cetus11.8°
Sep 22, 08:30:00115,32812.7-28.1°272.0°23h 54.7m-16° 5'Aquarius17.5°
Sep 22, 09:00:00104,27112.5-35.5°275.8°23h 51.8m-17° 51'Aquarius23.0°
Sep 22, 09:30:0093,18512.2-43.3°279.5°23h 48.4m-20° 3'Aquarius28.3°
Sep 22, 10:00:0082,08012.0-51.4°283.0°23h 44.0m-22° 51'Aquarius33.4°
Sep 22, 10:30:0070,99111.7-60.2°285.8°23h 38.1m-26° 33'Sculptor38.1°
Sep 22, 11:00:0059,99011.4-70.1°286.0°23h 29.6m-31° 37'Sculptor42.3°
Sep 22, 11:30:0049,24511.0-81.0°269.4°23h 15.6m-38° 54'Grus45.8°
Sep 22, 12:00:0039,14910.6-79.3°169.5°22h 47.3m-49° 55'Grus48.5°
Sep 22, 12:30:0030,66310.2-57.7°155.7°21h 19.2m-65° 54'Pavo50.2°
Sep 22, 13:00:0025,96210.2-26.0°160.7°15h 44.7m-69° 2'Triangulum Australe50.8°
Sep 22, 13:30:0027,57710.97.3°171.3°13h 16.9m-42° 40'Centaurus50.1°
Sep 22, 14:00:0034,68312.229.6°186.0°12h 37.3m-20° 47'Corvus48.3°
Sep 22, 14:30:0044,58913.840.5°203.3°12h 19.1m-7° 21'Virgo45.6°
Sep 22, 15:00:0055,72115.743.9°220.4°12h 8.5m0° 57'Virgo42.0°
Sep 22, 15:30:0067,41915.043.1°235.2°12h 1.7m6° 25'Virgo37.7°
Sep 22, 16:00:0079,40314.940.0°247.1°11h 56.9m10° 14'Virgo33.0°
Sep 22, 16:30:0091,54114.935.7°256.6°11h 53.4m13° 1'Leo27.9°
Sep 22, 17:00:00103,76615.030.7°264.5°11h 50.9m15° 9'Leo22.6°
Sep 22, 17:30:00116,03715.125.6°271.2°11h 49.0m16° 49'Leo17.0°
Sep 22, 18:00:00128,32915.320.3°277.2°11h 47.6m18° 10'Leo11.3°
Sep 22, 18:30:00140,62315.415.0°282.7°11h 46.5m19° 16'Leo5.6°
Sep 22, 19:00:00152,90515.59.8°288.0°11h 45.8m20° 12'Leo-0.2°
 

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