MESSENGER

[Orionid]

12 lat temu...

18.03.2011 o 00:45:20 rozpoczął się manewr wejścia na orbitę Merkurego (dV=862,2 m/s, t=14' 38").
Zakończył się on sukcesem, parametry orbity to: hp=207 km, ha=15261 km, i=82,5°.
http://lk.astronautilus.pl/sondy/mess.htm
https://www.forum.kosmonauta.net/index.php?topic=92.msg16992#msg16992

https://spaceflightnow.com/news/n1103/18messenger/
https://science.nasa.gov/science-news/science-at-nasa/2011/18mar_orbitmercury
http://www.collectspace.com/news/news-031811a.html
https://kosmonauta.net/2011/03/17-03-2011messenger/
https://kosmonauta.net/2011/03/messenger-pierwszy-merkury/

On this day in 2011, MESSENGER became the first spacecraft to enter orbit around Mercury. Mercury is difficult to study from Earth because of its proximity to the Sun and MESSENGER was only the second spacecraft sent to the planet.

Kod: [Zaznacz]

https://twitter.com/airandspace/status/1636817203516375040

[Orionid]

12 lat temu, 29.03.2011, sonda MESSENGER przesłała pierwsze zdjęcie Merkurego z orbity.
https://www.forum.kosmonauta.net/index.php?topic=92.msg17703#msg17703
https://solarsystem.nasa.gov/planets/mercury/exploration/
M 10 https://www.forum.kosmonauta.net/index.php?topic=3758.msg182880#msg182880

37 years later to the day, the MESSENGER spacecraft sent back the first photo of Mercury from orbit #OTD in 2011! MESSENGER gave scientists the first new data on the composition of Mercury's surface since Mariner 10's final 1975 flyby.

Kod: [Zaznacz]

https://twitter.com/NASAhistory/status/1641085309818396674https://twitter.com/airandspace/status/1641239589602959361

[Orionid]

O aspektach technicznych pozyskania zdjęcia przez instrument NAC (Narrow Angle Camera) będącego częścią systemu MDIS (Mercury Dual Imaging System), na którym widoczny jest krater Picasso.

This image was acquired as part of MDIS’s high-resolution stereo base map. The stereo base map is used in combination with the surface morphology base map to create high-resolution stereo views of Mercury’s surface, with an average resolution of 250 meters/pixel (0.16 miles/pixel or 820 feet/pixel) or better. During MESSENGER’s one-year mission, the surface morphology base map is acquired during the first 176 days, and the second 176 days are used to acquire the complementary stereo base map, which includes the image here.

Scale: Picasso crater is 133 km (83 miles) in diameter.
Incidence Angle: 65.3°
Emission Angle: 18.3°
Phase Angle: 52.2°

https://spaceref.com/science-and-exploration/nasa-messenger-image-of-mercury-crater-picasso-2/
https://en.wikipedia.org/wiki/Picasso_(crater)