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Vega xyz & models

Posted: 29.06.2003, 14:59
by JackHiggins
Hey everybody!

It's... Vega! (Vega 1, to be precise...)

Vega 1 & 2 were launched in 1985, and were the final 2 Venera-style probes. They each arried a Venus surface lander & atmospheric balloon probe, but also were to fly by comet Halley in 1986. I've made an xyz from an old .trj format file I found on the NSSDC FTP site, so it's not great, but it does the job. (They don't have any trajectory for Vega 2).

I've also made 2 models, one showing Vega with the Venus probe attached, and the other for after it had deployed. These models are converted from VRML, from this site: http://vsm.host.ru/e_vrml.htm However, they had to be highly modified to get the .3ds to look like the .wrl file, and nearly all the parts are new, just the design is the same. Anyway, thanks VSM! :-D

You can download the xyz & model from the Spacecraft page on my site http://homepage.eircom.net/~jackcelestia/ , and also you can get a comet Halley xyz for 1986, from the Other xyz's & ssc's page.

But before you do so, check out some screenshots...

Before the probe deployment:
Image
(That pic uses a very small FOV, it doesn't actually get that close to Venus- sorry...)

And after the venus part of the mission:
Image
Image
Image

I should also explain about the flags on the Spacecraft page- Vega was almost entirely a Soviet Image mission, but the French Image provided a few experiments for the surface probe, so I think they deserve a mention. Don't you?!

Enjoy! :-D

Posted: 29.06.2003, 18:55
by Guest
Blimey!!...It must be the Murphys!

bh...not logged in again!

Posted: 29.06.2003, 19:29
by Jeam Tag
Ho, Jack, you are incredible....

"Combien etes-vous?" :D

So , here is my little explanation in french for these probes, i hope this contains no silly errors...
# VEGA-1 (1984-1987) Mod?le et placement (1985-1987)
par Jack Higgins http://homepage.eircom.net/~jackcelestia/ Juin 2003

Les sondes jumelles VEGA 1 & 2 (contraction de VEnera-GAlleia,
transcription de Venus-Halley en russe) furent lanc?es respectivement les 15/12/84 et 21/12/84 depuis Ba?konour, sur une orbite h?liocentrique qui leur fit d'abord approcher V?nus (? 39 000 km et 24 500 km les 11/06/85 et 15/06/85) pour y larguer chacune un ballon-sonde qui ?tudia l'atmosph?re ? une altitude de 54 km, et un atterrisseur (d?riv? de la seconde g?n?ration des sondes Venera) destin? ? l'?tude de la cro?te superficielle, qui ?mettront pendant pr?s d'une heure.
Elles ont poursuivi leur p?riple vers la com?te de Halley dont elles travers?rent la chevelure ? 8 900 km et 8 030 km du noyau les 06/03/86 et 09/03/86. Si les prises de vues de la derni?re session de Vega-1, au plus pr?s, furent l?g?rement flout?es, le reste des observations, sur la poussi?re, les ondes de plasma, gaz, particules et champs magn?tique com?taires (dont une bonne partie des instruments ?tait le fruit d'une large collaboration europ?enne, notamment avec le CNES, france) ajout?rent aux mesures que la ru?e de sondes vers Halley permirent de r?colter.
Voir:
Site Vega: http://www.iki.rssi.ru/ssp/vega.html


Great work. Halley's comet becomes more and more visited, day after day :-)
Jeam