Rosetta PowerPoint

8/10/2019 Rosetta PowerPoint

1/33

Presenters:

There are talking points in the notessection at the bottom of some of theslides (not visible in slide show mode).

Enjoy!


2/33

THE ROSETTA

MISSION


3/33

What are comets?

ce and dst.


4/33

There are lots of rocks floating arondotside of the solar system. "ccasionally#

one changes trajectory# into the system.


5/33

Why go?

$iscover details of comets% composition.

&ow did solar system evolve'

$o comets contain essential ingredientsof life'

re they the origin of the bilding blocksof life on earth'


6/33


7/33


8/33

Basic facts aboutmission: * years of planning+

,* years flying time- lanched in arch/**0 on riane12 rocket+

3,.4 billion+

5osetta is the si6e of an 789+

Each solar panel jst shorter than a

semi1trck+ :hilae 1 washing machine si6e.


9/33

Why is this an amazing mission?

$istance to comet re;ired hibernation+

7peed re;ired.


10/33

Hibernation

"n *< =ne /*,,# 5osetta was pt intohibernation. >o contact. :lannedwakep date- /* =an /*,0.

Three () years no contact!

?hy'


11/33

Mission delays

@atal flaws with riane rockets delayed5osetta mission over one year. AoldnBtcatch originally1planned comet.


12/33

67P

They fond a new comet. C4: D Ahrymov1

erasimenko. t the limit of 5osettaBs distancecapabilities. 2** million miles from sn.7olar panels cold not get enogh power. (0F ofintensity of solar power on earth.)


13/33

Hibernation

Trn off all non1essential e;ipment+

Gose comm.


14/33

Hibernation (contd

:roblem 11 they had to sht down thegyrostabili6ers.

>ow craft cold rotate (solar panels

cold move away from sn# losing the0F energy they needed to keep essen1tials Hheaters# etcI rnning).

7oltion' ...


15/33

!"in #osetta$


16/33

Wa%e u" time:

7top spin+

et oriented. (djst alignment soantenna is pointing to earth).

&ow'


17/33

!tar &rac%ers$


18/33


19/33

'et ) send radio "ulse


20/33

*reen is bac%ground radio noise


21/33

+ hours late, s"i%ea""ears$


22/33

'eed for !"eed$

C4: traveling at speeds as high as

,2#*** kph (


23/33

!"eed (contd

5osetta was going 4C#*** mph after firstsling.

(Earth actally slowed one million

millionths of a mile per hor 11 giving itsspeed to 5osetta)

/ more Earth sling shots# , ars sling

shot. @inally got craft to rende6vos speed.


24/33

(:osition of craft and planets approKimate)


25/33

5ed dot indicates approKimate intersection with planet.


26/33


27/33


28/33

-atest 'e.s

Ganding site-


29/33

Philae !lee"ing

The lander is now in sleep mode.

>ot getting enogh snlight de tolanding bonce.

Aold revive as it gets closer to sn.


30/33

&hey found organic com"ound$

Aold replicate /**C finding of an aminoacid (glycine) in comet dst collectedfrom tail of comet (mission- 7tardst)+

Theory- .< billion years ago 11 comethit earth# seeding it with amino acids Lthe bilding blocks of life!


31/33

More data coming

5osetta contines to send data from itsorbit arond C4:.


32/33

Main !ource:

oogle-

To catch a comet :M7 9ideo

(ake sre the entry yo click has theword video in it)

, hor docmentary- free.


33/33

/ne *igundo ste" for human%ind$

Slid h t d b C t N fi i AEO SWR AZ 10 !S d AZ"

Documents

Rosetta PowerPoint