Summary of Changes
1995 March 15:
- Made some minor layout changes to the page... more changes to come.
1995 March 4:
- Updated the list of other SL9 pages by
adding some new sites and deleting some defuct pages.
1995 February 5:
- Corrected the URL for the SL9 FAQ at Texas A & M
University.
1994 November 23:
- Debugged the new images added to the page
(generally just minor formatting problems)
1994 November 14:
- Added a lot of new images to the impacts
page (some debugging needs to be done here, probably)
1994 November 12:
1994 November 11:
1994 October 16:
- Added a link to a paper
written by Syed Towheed of the NSSDC for an upcoming WWW conference.
1994 September 16:
1994 September 1:
1994 August 26:
- A page of other WWW sites with impact
information has been added, based on a list compiled by Hartmut Frommert
- The impact page has been given a
permanent place in the main menu.
1994 August 25:
- A handful of new impact images have been added to the
impacts page.
1994 August 13:
- A newly-released image
and caption of
impact K as seen by Galileo has been added.
1994 August 12:
1994 August 9:
1994 July 28:
1994 July 25:
- Some animations of simulated impacts have been added to the impacts page
1994 July 22:
1994 July 19:
1994 July 18:
1994 July 17:
- A new impacts page with information on
the impacts has been added, with information for fragments
A, B, C,
D, and E.
- New predicted impact times
from JPL.
- Spectacular images of impact A available from the European Southern Observatory.
1994 July 16:
- A table of times
each impact will rotate into view from Earth.
- A table of
offset ephemerides for each fragment.
1994 July 14:
- An HST image of
SL9 taken in May.
- An HST image of
Jupiter and Io, taken in May.
- An HST composite
image of the comet and Jupiter.
- A press release from
the University of Arizona on the impacts.
- An edited version of an article
by Paul Weissman to appear in Nature.
- An announcement of a conference
for educators to feature SL9.
- A WWW page
on plans to observe the impacts in the near-infrafred.
- New animations of an impact simulation by John Spencer of Lowell
Observatory are available in
large and small
formats.
- New impact times,
ephemerides, and
elements have been
added.
- New satellite positions, in
condensed and full
formats, have been added.
- A table of offset positions
for the Galilean satellites have been added.
- A table of offset
positions for each impact have been added.
- A list of estimated impact
times for the "lost" SL9 fragments.
- A new WWW page on
the impacts has been provided by JPL.
- The "March 1994" HST image of the comet has been corrected to read as
an enhanced January 1994 image (thanks to Hal Weaver, STScI, for pointing
this out).
1994 July 6:
- New impact times, dated
July 5, have been added.
- Added an image of
the comet taken last year by Bill Keel.
- Added transit times
for major Jovian features this month.
- Added predictions
for radio astronomers.
- A notice on updates to this site during
the impacts.
1994 July 3:
- An HTML version of the fact sheet has been
created.
- A press release on
spacecraft observation plans has been added.
- An HTML version of a paper by Rob Landia about
the impacts has been added.
1994 June 30:
- A list of the best locations to observe each impact.
- An updated list of Jovian satellite locations for each impact, in a
condensed and a
full format.
- A plot of the
predicted limb and sublight arrival times for the fireball and plume
possibly associated with each impact.
- The General Information page has been
reorganized.
1994 June 29:
- A new version of the fact
sheet from the University of Maryland has been added.
- A table of Jovian moon
events for July is now available.
- A new WWW page
has been created by the CEA.
1994 June 27:
1994 June 24:
- Added an updated version of a
paper by Rob Landis about the impacts.
- Added a link to a Sandia press release on the
Other Information page.
1994 June 19:
- Added an online comment form to allow users
to leave comments, suggestions, etc.
1994 June 18:
1994 June 16:
- Updated the link to the new
impact time predictions by Paul Chodas et al., JPL.
- Updated the linnk to the FAQ, which is available in
plain text and
PostScript formats.
- Added a new plot in
PostScript with the impact times and satellite positions.
- Added the current timeline
for HST observations of the impacts.
- Added tables of Jovian moon
positions and transit times
for Jovian cloud features.
- Added a new image of
the comet, an enhanced version of a 1993 image.
1994 June 14:
1994 June 12:
1994 June 10:
1994 June 7:
1994 June 3:
1994 May 25:
- Included information about image sizes adjacent to links to images,
so you know in advance how big an image is.
1994 May 23:
- Fixed link to Wasserman's plot
of the Jupiter-facing hemisphere of Earth for each impact.
- Created a hypertext version of JPL's
educator's guide to the impacts. (The plain text version still exists but
is not working right now.)
1994 May 11:
- Added link to a groundbased image of the comet, courtesy of Bill Keel, University of Alabama.
1994 April 28:
1994 April 21:
1994 April 18:
1994 April 12:
- Added information on the
positions of the Galilean satellites during the impacts, by Spencer.
1994 April 9:
- Adjusted path for Mordecai Mac-Low's movies (transparent change)
1994 April 8:
- Updated information on plans to use Galileo to observe the
impacts, by Clark Chapman.
1994 March 30:
- Included new figures of the comet's orbit
and viewing geometries provided by Paul Chodas of JPL.
1994 March 25:
1994 March 21:
- Added captions to 1993 HST images of the comet.
1994 March 11:
- Finished replacing full-sized images on image pages with thumbnails.
1994 March 10:
1994 March 1:
- Wasserman's plots added,
all files transferred to seds.lpl.arizona.edu.
1994 February 26:
1994 February 22:
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