Number 20: 24/05/2003
A scientific publication by SGF and NEODyS

NEOs' Spacemissions Special: mission GIOTTO

Giotto 3d interactive model

A 3D interactive model of the spacecraft and of its scientific instruments

Click here for a 3d model of the spacecraft that can be navigated, zoomed... (model and animation by Livia Giacomini )

Giotto resources

Giotto brochure by ESA: click here
Build a paper model of Giotto spacecraft: click here
A movie by ESA about Giotto: click here

Giotto links

ESA's Giotto official web page click here
NSSDC page about Giotto click here

Giotto images

Figure 1. The interplanetary trajectory of Giotto from launch on 2 July 1985 until encounter with comet Halley on 14 March 1986. Comet Halley's orbit is retrograde and inclined by 162_ with respect to the ecliptic plane.

Figure 2. The Giotto spacecraft design was derived from the Geos concept. The camera is shown looking downward, which is the direction towards the comet during the fly-by.

Figure 3. Principle of operation of the Halley Multicolour Camera on board the rotating spin-stabilised Giotto spacecraft.

Figure 4. Six examples of HMC images (original frame sizes) that are filtered, calibrated and deconvolved by the point spread function (PSF) (except image 3502). The Sun is on the left side, 7_ below the horizontal in mage 3502.

Figure 5. A composite image of the nucleus of comet Halley composed of 68 images at a resolution varying from 500 m px-1 to 50 m px-1 near the active region.

Figure 6. A tableau of features. Sections of the composite image (centre bottom) have been extracted and expanded by a factor of 3 to show, in detail, notable features on the nucleus. The position of each expanded section is marked as a box on the composite and a corner of each section is linked to its counterpart by a line. Non-linear enhancement has been applied to provide improved contrast.

Figure 7. The directions of filaments seen in the dust emission. The filaments are small inhomogeneities (£ 500 m in diameter at their source). This fine structure in the emission would have been far too faint to be seen by simultaneous ground-based observers. The filaments appear to criss-cross each other.

Figure 8. This Vega image led someone to believe that Halley were a "double object"

Figure 9. Giotto flyby sequence

Figure 10. The International Halley Watch logo. It was widely used during the 1986 return of comet Halley, including being featured on several postage stamps

Figure 11. Comet Halley: principal features identified on Giotto's images