IPB

Welcome Guest ( Log In | Register )

 
Reply to this topicStart new topic
Images of Venus Clouds from past probes?
ncc1701d
post Jun 29 2013, 06:51 PM
Post #1


Junior Member
**

Group: Members
Posts: 76
Joined: 21-August 06
Member No.: 1063



Hello,
Anybody know off hand where I can find the raw non false colored nasa images taken of the Venus Clouds from past probes? I have seen some here and there on the internet but looking for the best original source that have not been tweaked or scaled or colored by others. thanks
Go to the top of the page
 
+Quote Post
Phil Stooke
post Jun 29 2013, 08:58 PM
Post #2


Martian Cartographer
****

Group: Members
Posts: 7259
Joined: 5-April 05
From: Canada
Member No.: 227



Google took me right here.

http://www.astrosurf.com/nunes/explor/explor_pvenus.htm

But the ultimaste archive in the National Space Science Data Center is here:

http://nssdc.gsfc.nasa.gov/nmc/datasetDisp...o?id=PSPA-00346

Where you will learn that the data are archived as photographic negatives. The raw data are not available online, as far as I know. This was the world before the internet - or at least before universal access. As a very low science priority, it has never been put online.

Phil



--------------------
... because the Solar System ain't gonna map itself.
Go to the top of the page
 
+Quote Post
mcaplinger
post Jun 29 2013, 10:35 PM
Post #3


Senior Member
****

Group: Members
Posts: 1599
Joined: 13-September 05
Member No.: 497



Mariner 10 or Messenger flyby imaging is probably more accessible than PV data.
http://pds-imaging.jpl.nasa.gov/volumes/mess.html for Messenger.


--------------------
Disclaimer: This post is based on public information only. Any opinions are my own.
Go to the top of the page
 
+Quote Post
ncc1701d
post Jul 2 2013, 01:31 AM
Post #4


Junior Member
**

Group: Members
Posts: 76
Joined: 21-August 06
Member No.: 1063



QUOTE (mcaplinger @ Jun 29 2013, 10:35 PM) *
Mariner 10 or Messenger flyby imaging is probably more accessible than PV data.
http://pds-imaging.jpl.nasa.gov/volumes/mess.html for Messenger.

great suggestions to all. Thank you.
Go to the top of the page
 
+Quote Post
4throck
post Dec 16 2016, 10:39 AM
Post #5


Junior Member
**

Group: Members
Posts: 62
Joined: 17-December 12
From: Portugal
Member No.: 6792



Just to say that I've updated my astronomy page and some links have changed.

The Pioneer Venus images are now displayed with image number, code and date.
Processing is minimal, just histogram equalization of the scans.

There are a few more Pioneer Venus images online, but I've been unable to identify them.

http://www.astrosurf.com/nunes/explor_pvenus.html


--------------------
www.astrosurf.com/nunes
Go to the top of the page
 
+Quote Post
tedstryk
post Dec 18 2016, 01:41 PM
Post #6


Interplanetary Dumpster Diver
****

Group: Moderator
Posts: 4387
Joined: 17-February 04
From: Powell, TN
Member No.: 33



A big problem is that almost all the released imagery is from 1979-1980, despite the fact that PVO imaged Venus through most of the 1980s if not into the 1990s (I can't find any documentation of images being taken after 1988, but I can't find anything to suggest that they stopped either). With the exception of very poor reproductions of some 1985 images (bad photocopies), I've never seen anything beyond 1982. Between the Pioneer 10/11 digital data and PVO digital data (and any form of data from later in the mission), this is one of the biggest holes in the available record of planetary exploration. Even the Venera-9 orbiter dataset is easier to come by (although it is tiny).


--------------------
Go to the top of the page
 
+Quote Post
4throck
post Dec 18 2016, 05:38 PM
Post #7


Junior Member
**

Group: Members
Posts: 62
Joined: 17-December 12
From: Portugal
Member No.: 6792



I have a few more images I can add for completeness sake.
For example, this paper shows images 38 and 45:
http://eaps4.mit.edu/research/papers/Travis_etal_1979a.pdf

But again, the data if from early on the mission.


--------------------
www.astrosurf.com/nunes
Go to the top of the page
 
+Quote Post
JRehling
post Dec 28 2016, 05:27 PM
Post #8


Senior Member
****

Group: Members
Posts: 1987
Joined: 20-April 05
Member No.: 321



This is great, 4thRock. I've just had my first tries at photographing these details in UV from Earth, and I'll be back at it next summer, when Venus is better placed for Northern Hemisphere observers. Personally, I found that a clearer image comes from subtracting a visible-light image from the UV image, to reduce the information due to phase angle effects and emphasize the information due to the UV absorber. These PVO images were so great for their time and are still inspirational.
Go to the top of the page
 
+Quote Post

Reply to this topicStart new topic

 



RSS Lo-Fi Version Time is now: 21st September 2017 - 05:46 PM
RULES AND GUIDELINES
Please read the Forum Rules and Guidelines before posting.

IMAGE COPYRIGHT
Images posted on UnmannedSpaceflight.com may be copyrighted. Do not reproduce without permission. Read here for further information on space images and copyright.

OPINIONS AND MODERATION
Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators.
SUPPORT THE FORUM
Unmannedspaceflight.com is a project of the Planetary Society and is funded by donations from visitors and members. Help keep this forum up and running by contributing here.