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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, 18:51:45
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, 13:00:00152,64313.2-51.8°344.7°0h 8.1m-12° 20'Cetus40.2°
Sep 22, 13:30:00141,04613.1-53.6°356.8°0h 7.6m-13° 24'Cetus40.5°
Sep 22, 14:00:00129,36812.9-54.6°9.6°0h 7.0m-14° 40'Cetus40.0°
Sep 22, 14:30:00117,61512.7-54.8°22.7°0h 6.3m-16° 11'Cetus38.8°
Sep 22, 15:00:00105,79612.5-54.1°35.8°0h 5.3m-18° 3'Cetus36.7°
Sep 22, 15:30:0093,93012.2-52.8°48.7°0h 4.1m-20° 25'Cetus34.0°
Sep 22, 16:00:0082,05312.0-51.0°61.3°0h 2.3m-23° 29'Cetus30.8°
Sep 22, 16:30:0070,22611.7-49.2°74.3°23h 59.7m-27° 37'Sculptor27.1°
Sep 22, 17:00:0058,57611.3-47.6°88.2°23h 55.4m-33° 25'Sculptor23.0°
Sep 22, 17:30:0047,36710.9-46.6°105.0°23h 47.8m-42° 5'Phoenix18.7°
Sep 22, 18:00:0037,21210.5-46.3°127.9°23h 29.9m-55° 46'Phoenix14.1°
Sep 22, 18:30:0029,56410.2-44.6°162.1°21h 56.5m-76° 58'Octans9.4°
Sep 22, 19:00:0027,06510.4-36.2°204.4°13h 22.4m-67° 46'Musca4.6°
Sep 22, 19:30:0031,13311.4-24.4°238.0°12h 30.1m-38° 47'Centaurus-0.3°
Sep 22, 20:00:0039,64012.6-17.2°260.0°12h 14.8m-19° 20'Corvus-5.1°
Sep 22, 20:30:0050,17514.2-14.4°275.3°12h 7.2m-7° 28'Virgo-9.9°
Sep 22, 21:00:0061,56217.2-14.1°287.2°12h 2.7m0° 7'Virgo-14.6°
Sep 22, 21:30:0073,31315.4-14.9°297.2°11h 59.8m5° 16'Virgo-19.2°
Sep 22, 22:00:0085,21315.2-16.2°306.2°11h 57.7m8° 58'Virgo-23.5°
Sep 22, 22:30:0097,15615.1-17.7°314.7°11h 56.3m11° 46'Leo-27.5°
Sep 22, 23:00:00109,09015.2-19.1°322.9°11h 55.2m13° 57'Leo-31.2°
Sep 22, 23:30:00120,98515.3-20.2°330.9°11h 54.5m15° 43'Leo-34.4°
Sep 23, 00:00:00132,82215.4-20.9°338.9°11h 53.9m17° 10'Leo-37.0°
Sep 23, 00:30:00144,59215.5-21.1°346.8°11h 53.4m18° 23'Leo-38.9°
Sep 23, 01:00:00156,28815.6-20.9°354.6°11h 53.0m19° 26'Leo-40.1°
 

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