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Time: 09:17:36
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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, 13:00:00153,17413.2-60.1°327.0°0h 6.9m-11° 56'Cetus50.0°
Sep 22, 13:30:00141,64613.1-63.6°341.0°0h 6.5m-12° 57'Cetus51.6°
Sep 22, 14:00:00130,01812.9-66.0°357.9°0h 6.1m-14° 10'Cetus52.0°
Sep 22, 14:30:00118,29212.7-66.6°16.7°0h 5.5m-15° 37'Cetus51.2°
Sep 22, 15:00:00106,47612.5-65.7°35.4°0h 4.8m-17° 25'Cetus49.2°
Sep 22, 15:30:0094,58512.3-63.3°52.5°0h 3.8m-19° 41'Cetus46.2°
Sep 22, 16:00:0082,64812.0-59.9°67.5°0h 2.4m-22° 37'Cetus42.4°
Sep 22, 16:30:0070,71911.7-56.0°81.4°0h 0.3m-26° 34'Sculptor38.0°
Sep 22, 17:00:0058,90711.3-51.8°95.4°23h 57.0m-32° 9'Sculptor33.1°
Sep 22, 17:30:0047,45110.9-47.6°111.3°23h 50.9m-40° 31'Phoenix27.8°
Sep 22, 18:00:0036,92410.5-43.1°132.2°23h 36.9m-53° 55'Phoenix22.3°
Sep 22, 18:30:0028,76710.1-36.5°162.1°22h 28.4m-75° 46'Octans16.7°
Sep 22, 19:00:0025,87310.3-25.2°199.7°13h 10.8m-68° 52'Musca10.9°
Sep 22, 19:30:0030,02211.3-14.5°232.4°12h 22.6m-38° 14'Centaurus5.0°
Sep 22, 20:00:0038,84612.7-10.1°254.5°12h 9.3m-18° 18'Corvus-0.9°
Sep 22, 20:30:0049,69114.3-10.1°269.6°12h 2.8m-6° 28'Virgo-6.8°
Sep 22, 21:00:0061,34516.8-12.1°280.8°11h 58.9m0° 58'Virgo-12.7°
Sep 22, 21:30:0073,32415.3-15.0°290.2°11h 56.5m5° 59'Virgo-18.4°
Sep 22, 22:00:0085,42515.1-18.2°298.6°11h 54.9m9° 35'Virgo-24.1°
Sep 22, 22:30:0097,54915.1-21.4°306.5°11h 53.8m12° 16'Leo-29.5°
Sep 22, 23:00:00109,64615.2-24.3°314.3°11h 53.1m14° 23'Leo-34.6°
Sep 22, 23:30:00121,68715.3-26.9°322.2°11h 52.6m16° 4'Leo-39.4°
Sep 23, 00:00:00133,65715.4-29.0°330.3°11h 52.3m17° 28'Leo-43.6°
Sep 23, 00:30:00145,54315.5-30.5°338.5°11h 52.1m18° 38'Leo-47.2°
Sep 23, 01:00:00157,34115.6-31.3°346.9°11h 52.0m19° 39'Leo-49.9°
 

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