Rosetta's 2014 comet selfie and Philae's descent

Background

  • Rosetta's spacecraft selfie was recorded on 2014-10-07.
  • Philae separated and began descent on 2014-11-12.
  • Comet 67P/Churyumov-Gerasimenko had a double-lobed nucleus with dust and gas streaming away.
  • The CIVA camera system combined two exposures.
  • The separation, descent, and imaging sequence is comparable to basic events tracked in landing campaigns.

What happened

On 2014-10-07, Rosetta, a comet-chasing spacecraft, was recorded with a spacecraft selfie.

On 2014-11-12, the Philae lander was separated and began descent.

The facts also list a last image from a Philae camera and an image from Philae looking back toward the orbiter.

What we know

Rosetta is identified as a comet-chasing spacecraft, and the Rosetta spacecraft selfie is dated 2014-10-07. The CIVA camera system is recorded as combining two exposures.

Two distance figures are attached to Rosetta: 472,000,000 kilometers and 16 kilometers. A separate vehicle specification lists Rosetta as 14 meter.

Comet 67P/Churyumov-Gerasimenko is described as having dust and gas streaming away and a double-lobed nucleus.

Philae is listed as still attached, and its landing site is given as the visible hemisphere of the smaller lobe.

The Philae record includes the date 2014-11-12, a separation event, the start of descent, a last image from a Philae camera, and an image looking back toward the orbiter.

Why it matters

For readers tracking the lunar industry, the value is a documented sequence of lander separation, descent, and imaging. Those elements are comparable to the basic events tracked in landing campaigns.

What we are not sure about

  • The facts do not identify the reference point for the 472,000,000 kilometers and 16 kilometers figures.

Sources

  1. 1.NASA News Releases

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