Return-path: X-Andrew-Authenticated-as: 7997;andrew.cmu.edu;Ted Anderson Received: from hogtown.andrew.cmu.edu via trymail for +dist+/afs/andrew.cmu.edu/usr11/tm2b/space/space.dl@andrew.cmu.edu (->+dist+/afs/andrew.cmu.edu/usr11/tm2b/space/space.dl) (->ota+space.digests) ID ; Sat, 2 Feb 91 02:36:46 -0500 (EST) Message-ID: Precedence: junk Reply-To: space+@Andrew.CMU.EDU From: space-request+@Andrew.CMU.EDU To: space+@Andrew.CMU.EDU Date: Sat, 2 Feb 91 02:36:42 -0500 (EST) Subject: SPACE Digest V13 #108 SPACE Digest Volume 13 : Issue 108 Today's Topics: Re: Voyager CD-ROMs Re: Satellite Imagery of Iraq/Kuwait NASA Headline News for 01/30/91 (Forwarded) Re: Firm Fred Decisions Re: liquid SCUBA -- possible? Voyager Update - 01/30/91 quick orbit calculatio Administrivia: Submissions to the SPACE Digest/sci.space should be mailed to space+@andrew.cmu.edu. Other mail, esp. [un]subscription requests, should be sent to space-request+@andrew.cmu.edu, or, if urgent, to tm2b+@andrew.cmu.edu ---------------------------------------------------------------------- Date: 30 Jan 91 23:16:28 GMT From: sdd.hp.com!cs.utexas.edu!oakhill!hunter@ucsd.edu (Hunter Scales) Subject: Re: Voyager CD-ROMs baalke@mars.jpl.nasa.gov (Ron Baalke) writes: > I've received a number of inquiries about the Voyager images available >on CD-ROMs. There are eight CD-ROMs that contain about 16,000 images taken [ordering info deleted] > The images are stored in compressed format on the CD-ROM with each >image being about 220K. A decompression program, called PCDCOMP, and an >image display program that runs on an IBM PC computer, call IMDISP, are >included with the CD-ROMs. The most recent versions of the PCDCOMP >(version 2.0) and IMDISP (version 5.6) programs can also be obtained via >anonymous ftp at ames.arc.nasa.gov site under the filename imdisp56.zip in the >pub/SPACE/IMDISP directory. When the images are uncompressed, they will be Does anyone know if these CD-ROMs can be read on a Macinosh? If so, does anyone have a mac decompression/viewing program or failing that, is the compression and/or image file format spec available so that I can write my own? I'm starting to feel that I should buy a PC clone just so I dont have to feel left out of things like this. >spacecraft. All of the images are monochrome images since Voyager carried a >black-and-white camera. All of the color images you've might of seen on >the news and in magazines were images created by the Image Processing >Lab at JPL; there are no color images on the CD-ROMs. However, the IMDISP I dont understand. Were all the color pictures false color? I was under the impression that they were created by multiple monochrome pictures take thru color filters? >program mentioned before gives you the capability to perform some image >processing functions on the images, as well as applying color palettes >to the images. > A set of four CD-ROMs containing the Neptune images taken by Voyager 2 >is due to be released at the end of February 1991, and these CD-ROMs will also >be available at NSSDC. > ___ _____ ___ > /_ /| /____/ \ /_ /| Ron Baalke | baalke@mars.jpl.nasa.gov > | | | | __ \ /| | | | Jet Propulsion Lab | > ___| | | | |__) |/ | | |___ M/S 301-355 | It's 10PM, do you know > /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | where your spacecraft is? > |_____|/ |_|/ |_____|/ | We do! Thanks for the info, Ron. --- Motorola Semiconductor Inc. Hunter Scales Austin, Texas oakhill!hunter@cs.utexas.edu #include -- Motorola Semiconductor Inc. Hunter Scales Austin, Texas oakhill!hunter@cs.utexas.edu #include ------------------------------ Date: 30 Jan 91 16:12:27 GMT From: borg!homer!leech@mcnc.org (Jonathan Leech) Subject: Re: Satellite Imagery of Iraq/Kuwait In article <2332.27A5DF8A@ofa123.fidonet.org> you write: |> I realize that the resolution would be on the order of meters, but |> I'm still surprised that we haven't seen any. One of the networks subjected a Landsat image to analysis last week. The analyst pointed out what he claimed were new supply roads in Kuwait. I suspect the analyst was the only person who saw them, however. Jon (leech@cs.unc.edu) __@/ ------------------------------ Date: 30 Jan 91 19:02:08 GMT From: agate!dog.ee.lbl.gov!hellgate.utah.edu!caen!sdd.hp.com!elroy.jpl.nasa.gov!jato!mars.jpl.nasa.gov!baalke@ucbvax.Berkeley.EDU (Ron Baalke) Subject: NASA Headline News for 01/30/91 (Forwarded) Headline News Internal Communications Branch (P-2) NASA Headquarters Wednesday, January 30, 1991 Audio Service: 202 / 755-1788 This is NASA Headline News for Wednesday, January 30, 1991 Technicians at Kennedy Space Center are preparing to change out three thrusters on Discovery's orbital maneuvering system pods. Two of the thrusters had possible leaks and the third was suspected of having faulty braze joints. The new thrusters will be installed tomorrow. The roll over of Discovery from the Orbiter Processing Facility to the Vehicle Assembly Building is now targeted for Feb. 7. Work on Atlantis continues apace. Technicians will be installing a new main engine controller on engine #2 later this week. A retest of engine #2 will follow the installation of the controller. AtlantisU forward reaction control system arrives at the OPF today and will be installed later this week. The STS- 37 stack, in the VAB, is now awaiting mating of the external tank. Current work includes closeout of all solid rocket booster field joints and alignment of the boosters. Tank mating could occur this weekend. Columbia continues to have minor modifications and routine servicing work done while it remains in the VAB. * * * * * * * * * * * * * * * * * * * * * * * * * * NASA's Office of Commercial Programs yesterday announced the selection of 39 research proposals for negotiation of Phase II contract awards as part of the Small Business Innovation Research Program. Included are 36 small, high technology firms located in 17 states. Estimated worth of the contracts is $19 million. Twelve California firms received 14 awards, five Massachusetts firms received one award each. Pennsylvania, Colorado, Nevada, and Maryland each had two firms receiving awards. The proposals run the gamut from robotics hardware and software development to sensor technology development and include several related to rotational energy storage device development. * * * * * * * * * * * * * * * * * * * * * * * * * * The Ohio State University's Center for Mapping, in Columbus, one of 16 NASA Centers for the Commercial Development of Space, has developed a system that will reduce the amount of time and money needed to gather information on highway conditions. Unreported deteriorating road conditions are believed to cost the United States $16 billion a year in wasted fuel and excessive vehicle repairs. Currently, the center is fine-tuning a prototype vehicle equipped with television cameras and Global Positioning System (GPS) equipment that automatically can map and record transportation systems, including bridges, railways, grass- mowing areas, equipment locations and secondary roads. The system also will be helpful in locating roadways needing repair as well as other hazardous conditions, including the location of fatal accidents. The system combines on-vehicle camera views with the GPS geographic information to develop a geographical data base system which highway department or public safety officers can use. The 18-month project involves the Federal Highway Administration, 38 different state transportation departments and the Canadian province of Alberta. NASA has contributed $280,000 and the 38 states have contributed $565,000. Demonstration and performance evaluation projects have been completed in New Orleans and in Albemarle County, Va., and are planned for Colorado, Ohio, Florida and along the West Coast. Here's the broadcast schedule for Public Affairs events on NASA Select TV. All times are Eastern. **indicates a live program. Wednesday, 1/30/91 1:15 pm **Magellan-at-Venus report from Jet Propulsion Laboratory. 1:30 pm Aeronautics and Space Report #255 will be transmitted. Thursday, 1/31/91 11:30 am NASA Update will be transmitted. 12:00 pm NASA Productions will be transmitted. NASA Select TV: Satcom F2R, Transponder 13, C-Band, 72 degrees West Longitude, Audio 6.8, Frequency 3960 MHz. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@mars.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |___ M/S 301-355 | It's 10PM, do you know /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | where your spacecraft is? |_____|/ |_|/ |_____|/ | We do! ------------------------------ Date: Wed, 30 Jan 91 12:28:49 -0500 From: "Allen W. Sherzer" Subject: Re: Firm Fred Decisions Newsgroups: sci.space Cc: In article <1991Jan29.133819.29954@engin.umich.edu> Ken writes: >>> [MTC only for Freedom] >>I wonder if we are seeing the first results of Staffords Synthesis Group >The current restructuring effort is a result of congressional requests >to cut the price of station. Agreed. That doesn't mean the people responsible havn't been talking to Stafford's group for guideance. I don't know if they are or are not; I was just speculating. >There has been little or no conscious effort >to incorporate the suggestions of the Augustine committee. True. But the Augustine Committee is less concerned with the architecture of the space infrastructure. Stafford is very interested in it so it would have been nice if they talked to him and his group. >I would also add that (in my opinion) if you're trying to incorporate >Stafford's sugestions, stopping at MTC isn't the way to do it. Depends on the architecture selected. Maybe (pure speculation here) Freedom becomes a microgravity free flyer and the life science and transportation node is in a cheaper station. >Since congress >gives every indication of not wanting to fund _TWO_ stations, There are indications that may change. All this will be revisited when Stafford's group is done and releases their work. The Appropriations Committees recently released a few million for mission studies with the direction that they be used for planning. The implication was that if reasonable numbers are given for funding and schedule then work may begin at some level. Congress is putting limits on the money to be spent. They care a lot less about how many stations are built with the money. >As a side note, vehicle assembly plays havoc with a micro-g environment. Indeed it does. All the more reason to separate the transportation node from the micro-g node. Allen -- +-----------------------------------------------------------------------------+ |Allen Sherzer |A MESSAGE FROM THE ANTI-WAR MOVEMENT TO THE PEOPLE OF KUWAIT: | |aws@iti.org | "If rape is inevitable, enjoy it!" | +-----------------------------------------------------------------------------+ ------------------------------ Date: 30 Jan 91 18:25:31 GMT From: jb7m+@andrew.cmu.edu (Jon C. R. Bennett) Subject: Re: liquid SCUBA -- possible? adeboer@gjetor.geac.COM (Anthony DeBoer) writes: > I heard via my brother that apparently a human volunteer had breathed this > stuff successfully, but I'll leave that classified under Urban Legend unless > and until anyone can confirm that. the idea of liquid SCUBA was covered in an article in Discover (i think) in any case i read (in whatever the article was in) that, human testing had been limited to a professional SCUBA diver, and they had only filled one lung with the stuff (yeah, they put it in with a tube thats why they used a PROFESSIONAL SCUBA diver), the article also stated that there were other problems relating to having liquid in your lungs that might make the system impractical. jon ------------------------------ Date: 31 Jan 91 01:17:22 GMT From: usc!elroy.jpl.nasa.gov!jpl-devvax!jato!mars.jpl.nasa.gov!baalke@ucsd.edu (Ron Baalke) Subject: Voyager Update - 01/30/91 VOYAGER STATUS REPORT January 30, 1991 Voyager 1 The Voyager 1 spacecraft collected routine UVS (Ultraviolet Spectrometer) data throughout this period on sources HD 58978 and the South Galactic Pole. On January 22, one frame of high-rate PWS (Plasma Wave) data was recorded. On January 19 an TLC (Tracking Loop Capacitor) test was scheduled over the 70 meter Canberra station; however it was not performed due to a power outage at SPC 40 (Signal Processing Center 40). A TLC test was successfully performed by the 34 meter Goldstone antenna on January 24. A Dummy CC command was transmitted to the spacecraft on January 24 to reset the Command Loss Timer. Round trip light time is 12 hours, 15 minutes. On January 24, the AACS (Attitude and Articulation Control Subsystem) scan platform was slewed to a position of azimuth 249.48 degrees elevation 57.14 degrees; the IRIS (Infrared Interferometer Spectrometer and Radiometer) channels all returned to their nominal values as observed prior to slewing to the low cone angle platform position on January 16. Also on January 24, shortly after the slew to the South Galactic Pole, the IRIS Primary Heater went back to within 1 DN of its pre-alarm state. This would tend to confirm the suspicion that the heater output dropped due to solar heating caused by the pointing after the initial UVS slew. The alarm limit for this heater was lowered and will probably be left at its new value. Voyager 2 The Voyager 2 spacecraft collected routine UVS data on sources AKN 120 and HD 17925. On January 22, one frame of high-rate PWS data was recorded. January 24 marked the fifth anniversary of Voyager 2's encounter with Uranus. Round trip light time is 9 hours, 37 minutes. On January 21, the FDS (Flight Data Subsystem) commutator was modified from the on board sequence to increase the sampling rate of the azimuth actuator temperature. A Dummy CC command was transmitted to the spacecraft on January 24 to reset the Command Loss Timer. The bracketed command procedure and 3 db command suppression were used for the uplink; two of the seven commands transmitted to the spacecraft were received. CONSUMABLE STATUS AS OF 01/30/91 P R O P E L L A N T S T A T U S P O W E R Consumption One Week Propellant Remaining Output Margin Spacecraft (Gm) (Kg) Watts Watts Voyager 1 5 36.2 + 2.0 366 55 Voyager 2 6 39.2 + 2.0 370 61 ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@mars.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |___ M/S 301-355 | It's 10PM, do you know /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | where your spacecraft is? |_____|/ |_|/ |_____|/ | We do! ------------------------------ Date: 30 Jan 91 06:01:38 GMT From: news-server.csri.toronto.edu!utgpu!utzoo!attcan!lsuc!canrem![tom.neumann%canrem.uucp]@rutgers.edu (tom neumann) Subject: quick orbit calculatio Hi All! I am sure this is really simple stuff for you, but is there a SIMPLE way to calculate orbits once a velocity and intial points are given? If so, would you be so kind as to post the appropriate calculations? Thanks, Tom Neumann --- ~ DeLuxe}ab #350 ~ I'm SO confused... -- Canada Remote Systems. Toronto, Ontario NorthAmeriNet Host ------------------------------ End of SPACE Digest V13 #108 *******************