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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, 07:00:00148,62413.2-9.8°262.1°0h 1.6m-12° 25'Cetus2.4°
Sep 22, 07:30:00137,61713.0-16.4°266.5°23h 59.7m-13° 28'Cetus8.0°
Sep 22, 08:00:00126,58812.9-23.2°270.8°23h 57.6m-14° 42'Cetus13.6°
Sep 22, 08:30:00115,53112.7-30.2°275.1°23h 55.2m-16° 10'Aquarius19.0°
Sep 22, 09:00:00104,44212.5-37.4°279.4°23h 52.5m-17° 56'Aquarius24.2°
Sep 22, 09:30:0093,32212.2-44.9°283.7°23h 49.1m-20° 9'Aquarius29.2°
Sep 22, 10:00:0082,18512.0-52.9°288.2°23h 44.9m-22° 58'Aquarius33.9°
Sep 22, 10:30:0071,06411.7-61.5°292.4°23h 39.2m-26° 42'Sculptor38.2°
Sep 22, 11:00:0060,03711.4-71.2°295.4°23h 30.9m-31° 48'Sculptor41.9°
Sep 22, 11:30:0049,27511.0-82.6°287.2°23h 17.3m-39° 10'Grus44.9°
Sep 22, 12:00:0039,18010.6-80.6°158.3°22h 49.4m-50° 18'Grus47.1°
Sep 22, 12:30:0030,73010.2-58.6°154.0°21h 21.3m-66° 32'Pavo48.3°
Sep 22, 13:00:0026,10810.2-27.3°161.9°15h 37.7m-69° 23'Triangulum Australe48.3°
Sep 22, 13:30:0027,79911.05.2°174.0°13h 13.8m-42° 48'Centaurus47.3°
Sep 22, 14:00:0034,93712.226.8°189.4°12h 35.7m-20° 59'Corvus45.3°
Sep 22, 14:30:0044,85313.837.2°206.3°12h 18.2m-7° 34'Virgo42.4°
Sep 22, 15:00:0055,98615.840.5°222.5°12h 8.0m0° 45'Virgo38.8°
Sep 22, 15:30:0067,68215.139.8°236.4°12h 1.4m6° 13'Virgo34.5°
Sep 22, 16:00:0079,66014.936.9°247.8°11h 56.8m10° 3'Virgo29.9°
Sep 22, 16:30:0091,79014.932.9°257.2°11h 53.4m12° 52'Leo24.9°
Sep 22, 17:00:00104,00215.028.2°265.0°11h 51.0m15° 0'Leo19.7°
Sep 22, 17:30:00116,25715.123.3°271.9°11h 49.1m16° 41'Leo14.3°
Sep 22, 18:00:00128,53015.318.3°278.0°11h 47.8m18° 3'Leo8.8°
Sep 22, 18:30:00140,80115.413.3°283.8°11h 46.8m19° 10'Leo3.2°
Sep 22, 19:00:00153,05615.58.4°289.3°11h 46.1m20° 6'Leo-2.4°
 

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