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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, 16:51:49
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, 11:00:00153,74413.2-71.6°235.5°0h 6.5m-10° 24'Cetus76.8°
Sep 22, 11:30:00142,17513.1-76.4°214.4°0h 6.3m-11° 18'Cetus84.3°
Sep 22, 12:00:00130,47012.9-77.7°181.0°0h 6.2m-12° 21'Cetus88.2°
Sep 22, 12:30:00118,62812.7-74.6°152.0°0h 6.0m-13° 38'Cetus80.7°
Sep 22, 13:00:00106,64912.5-68.9°136.3°0h 5.7m-15° 12'Cetus73.2°
Sep 22, 13:30:0094,54312.2-62.0°128.7°0h 5.3m-17° 11'Cetus65.7°
Sep 22, 14:00:0082,32412.0-54.4°125.4°0h 4.6m-19° 47'Cetus58.2°
Sep 22, 14:30:0070,02811.6-46.4°124.8°0h 3.5m-23° 19'Cetus50.7°
Sep 22, 15:00:0057,73211.2-37.7°126.8°0h 1.6m-28° 22'Sculptor43.2°
Sep 22, 15:30:0045,61810.8-28.0°131.8°23h 58.1m-36° 9'Sculptor35.7°
Sep 22, 16:00:0034,19310.3-16.7°142.2°23h 50.1m-49° 20'Phoenix28.2°
Sep 22, 16:30:0025,0169.8-2.6°163.5°23h 12.5m-73° 25'Indus20.7°
Sep 22, 17:00:0022,02910.09.0°201.5°12h 39.8m-66° 40'Musca13.1°
Sep 22, 17:30:0027,59711.37.1°237.5°12h 9.6m-32° 8'Hydra5.6°
Sep 22, 18:00:0037,83413.0-1.3°257.2°12h 0.9m-12° 40'Corvus-1.9°
Sep 22, 18:30:0049,64615.5-9.9°267.9°11h 56.6m-1° 57'Virgo-9.4°
Sep 22, 19:00:0061,96415.1-18.0°274.7°11h 54.2m4° 34'Virgo-16.9°
Sep 22, 19:30:0074,43014.8-25.6°279.8°11h 52.8m8° 55'Virgo-24.4°
Sep 22, 20:00:0086,90414.9-32.8°284.2°11h 51.9m12° 2'Leo-31.9°
Sep 22, 20:30:0099,32615.0-39.8°288.7°11h 51.5m14° 22'Leo-39.4°
Sep 22, 21:00:00111,66315.1-46.4°293.7°11h 51.3m16° 11'Leo-46.9°
Sep 22, 21:30:00123,89915.2-52.6°299.8°11h 51.3m17° 40'Leo-54.4°
Sep 22, 22:00:00136,02415.4-58.2°307.7°11h 51.3m18° 53'Leo-61.9°
Sep 22, 22:30:00148,03215.5-63.1°318.4°11h 51.5m19° 55'Leo-69.4°
Sep 22, 23:00:00159,91915.6-66.6°332.9°11h 51.7m20° 48'Leo-76.9°
 

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