>Date: Fri, 12 Mar 2004 09:16:25 -0700 (MST) >From: Terry Forrester >To: Mark Showalter >cc: mgordon@mail.arc.nasa.gov >Subject: Re: Voyager UVS ring occultation data set > > >Hi Mark and Mitch: > > I've pretty much finished looking over the UVS ring occultation >volume VG_2802. Overall, I'm quite impressed with the completeness of this >work and the sheer number of files. > > I spent some time browsing the tables in the EASYDATA directory, >particularly those for the Voyager 2 Delta Sco egress occultation with >which I'm the most familiar. I was easily able to make plots of ring >opacity vs. range to view the data. This is a nice, easy to use form of the >data that should be sufficient for most purposes. I also looked at the tables >in the EDITDATA directory, but don't have a really good way of viewing >binary tables at the moment. I tried to resurrect my IDL -> OAL software, >but was never able to get it to work; it kept crashing every time I tried >to load a table (with OaIDLReadObject). However, I was able to use tbtool >to to check out the table structure, to see how the GEOMETRY and CALIB >tables are related to the spectrum index. > > I also read through most of the documentation and catalog files. >I found a number of minor things that should be addressed, so I'll include >a list of these at the end of this message. > > > > Terry > > >--------------------------------------------------------------------------- > >Documentation and catalog file comments: > > > >--------------- >aareadme.txt >--------------- > > A number of places in this file refer only to Voyager 2, even though >one Voyager 1 occultation data set is included. The obvious places are the >NOTE near the top, the title, and the first line of the introduction. Also, >the Voyager 1 SPICE files are not listed in the directory listing, though >present in the SPICE directory itself. I suspect this file was written before >the Voyager 1 Iota Her data was added. Fixed. You're right, I forgot to update a few files when we added the Voyager 1 occultation data. > The last line of the description of the SPICE/PC directory looks like >something was left out or should have been something else entirely (reads >"This workstations running Unix."). Fixed. >------------------ >catalog/person.cat >------------------ > > Area code for BSANDEL, ABROADFOOT and TFORRESTER should be 520, not >602. Phone numbers themselves are still correct, though. Fixed. Thanks. >------------------- >catalog/catinfo.txt >------------------- > > This file has a listing for 'insthost.cat' (for Voyager 2), while >catalog files (vg1host.cat, vg2host.cat) are present for both spacecraft. Fixed. >------------------- >catalog/dataset.cat >------------------- > Under the 'Ancillary Data' heading, 'PPS' should be 'UVS'. Fixed. >------------------- >calib/calinfo.txt >------------------- > > No mention is made of the Voyager 1 iota Her occultation, and no >calibration files are present for that data set. I added a note about that now. We don't have calibration models for either the delta Sco ingress or for the iota Her occultation. However, these occultations are mainly useful for their geometric content, so the lack of calibration models is probably not critical. >--------------------------------------------------------------------------- >