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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, 16:51:45
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, 11:00:00153,71813.2-71.6°235.5°0h 6.5m-10° 25'Cetus76.8°
Sep 22, 11:30:00142,14913.1-76.4°214.4°0h 6.3m-11° 18'Cetus84.3°
Sep 22, 12:00:00130,44412.9-77.7°181.0°0h 6.2m-12° 21'Cetus88.2°
Sep 22, 12:30:00118,60212.7-74.6°152.0°0h 6.0m-13° 38'Cetus80.7°
Sep 22, 13:00:00106,62312.5-68.9°136.3°0h 5.7m-15° 12'Cetus73.2°
Sep 22, 13:30:0094,51712.2-62.0°128.7°0h 5.3m-17° 12'Cetus65.7°
Sep 22, 14:00:0082,29812.0-54.4°125.4°0h 4.6m-19° 48'Cetus58.2°
Sep 22, 14:30:0070,00211.6-46.4°124.8°0h 3.5m-23° 19'Cetus50.7°
Sep 22, 15:00:0057,70611.2-37.7°126.8°0h 1.6m-28° 23'Sculptor43.2°
Sep 22, 15:30:0045,59310.8-28.0°131.8°23h 58.1m-36° 10'Sculptor35.7°
Sep 22, 16:00:0034,17110.3-16.6°142.3°23h 50.0m-49° 22'Phoenix28.2°
Sep 22, 16:30:0025,0019.8-2.6°163.6°23h 12.2m-73° 29'Indus20.7°
Sep 22, 17:00:0022,03210.09.1°201.6°12h 39.7m-66° 35'Musca13.1°
Sep 22, 17:30:0027,61511.37.1°237.5°12h 9.5m-32° 5'Hydra5.6°
Sep 22, 18:00:0037,85713.0-1.3°257.3°12h 0.9m-12° 38'Corvus-1.9°
Sep 22, 18:30:0049,67115.6-9.9°267.9°11h 56.6m-1° 56'Virgo-9.4°
Sep 22, 19:00:0061,99015.1-18.0°274.7°11h 54.2m4° 35'Virgo-16.9°
Sep 22, 19:30:0074,45614.8-25.6°279.8°11h 52.8m8° 56'Virgo-24.4°
Sep 22, 20:00:0086,93014.9-32.8°284.3°11h 51.9m12° 2'Leo-31.9°
Sep 22, 20:30:0099,35215.0-39.8°288.7°11h 51.5m14° 22'Leo-39.4°
Sep 22, 21:00:00111,68915.1-46.4°293.7°11h 51.3m16° 12'Leo-46.9°
Sep 22, 21:30:00123,92515.2-52.6°299.8°11h 51.3m17° 40'Leo-54.4°
Sep 22, 22:00:00136,05015.4-58.2°307.7°11h 51.3m18° 53'Leo-61.9°
Sep 22, 22:30:00148,05815.5-63.1°318.4°11h 51.5m19° 55'Leo-69.4°
Sep 22, 23:00:00159,94515.6-66.6°332.9°11h 51.7m20° 48'Leo-76.9°
 

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