Return-path: X-Andrew-Authenticated-as: 7997;andrew.cmu.edu;Ted Anderson Received: from beak.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 ; Tue, 1 Jan 1991 03:15:40 -0500 (EST) Message-ID: Precedence: junk Reply-To: space+@Andrew.CMU.EDU From: space-request+@Andrew.CMU.EDU To: space+@Andrew.CMU.EDU Date: Tue, 1 Jan 1991 03:14:19 -0500 (EST) Subject: SPACE Digest V12 #706 SPACE Digest Volume 12 : Issue 706 Today's Topics: Re: More Launch Cost Data LSAT-5 Update - 12/17/90 Re: pressure-altitude relation Re: pressure-altitude relation Pioneer 6 WIN A SPACEFLIGHT TO MIR!!!!!!!!!!!! Internet address for NASA elements NASA Headline News for 12/14/90 (Forwarded) Administrivia: Submissions to the SPACE Digest/sci.space should be mailed to space+@andrew.cmu.edu. Other mail, esp. [un]subscription notices, should be sent to space-request+@andrew.cmu.edu, or, if urgent, to tm2b+@andrew.cmu.edu ---------------------------------------------------------------------- Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: Mon, 17 Dec 90 12:51:15 -0500 From: "Allen W. Sherzer" To: space+@andrew.cmu.edu Subject: Re: More Launch Cost Data Newsgroups: sci.space In-Reply-To: <1900.2768F8DB@ofa123.fidonet.org> Organization: Evil Geniuses for a Better Tomorrow Cc: In article <1900.2768F8DB@ofa123.fidonet.org>: | It was recently announced that McDonnell Douglas Space Systems |Co. (MDSSC) has won a $140.6 million contract with NASA to provide |Delta II launch services for upcoming NASA science missions (Source: |NASA news release). The basic contract is for the launch of 3 satellites... Another data point would be the launch of two SDI payloads (RME and LACE) using a single Delta II on Feb. 14. This launcher was procured in a totally commercial manner (some of my sources say NASA should use it as a model). According to Avation Week (Feb. 19, 1990 page 24) SDIO paid only $38 million for launch services. Dispite the fact that SDIO only bought one launch compared to NASA's three they still got it for ~20% less. SDIO estimates that the same launch would cost $13 to $17 million more if it was an Air Force procurement. | Editorial Comment: This gives us a basis for a cost per pound |for the Delta II launch vehicle. Rated performance of a Delta II is |about 11,110 lbs into a 100 nmi 28.5 deg circular orbit (Source: |MDSSC, "Delta II Fact Sheet"). For a commercial lot buy of 3 Delta |IIs, this is about $46.9M/launch or about $4218/lb. Using the numbers from the SDIO commercial procurement we get a unit cost of $38M and a payload of 11,110 pounds which gives $3420 per pound to LEO. Again, about 20% less. If SDIO bought in bulk they would have saved even more. I have read (but can't remember the source) that Delta II's can be had for $35 million each in quanity. This (if true) would bring cost down to $3150/pound to LEO. Allen -- +---------------------------------------------------------------------------+ | Allen W. Sherzer | If guns are outlawed, how will we shoot the liberals? | | aws@iti.org | | +---------------------------------------------------------------------------+ ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 17 Dec 90 16:57:24 GMT From: sdd.hp.com!elroy.jpl.nasa.gov!jato!mars.jpl.nasa.gov!baalke@ucsd.edu (Ron Baalke) Organization: Jet Propulsion Laboratory, Pasadena, CA. Subject: LSAT-5 Update - 12/17/90 Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu LSAT-5 Status Report December 17, 1990 An engineering test was performed with the LSAT-5 satellite and the 26 meter antenna in Australia on December 15. The purpose of the test was to validate the DSN (Deep Space Network) tracking capability of the backside of the LSAT-5 TDRS pointing High Gain Antenna. LSAT-5 has an anomaly in that it cannot switch the downlink to the Earth pointing antenna. This will be the nominal DSN 26 meter emergency support configuration. All objectives of the test was met, and the engineering test was successful. ___ _____ ___ /_ /| /____/ \ /_ /| | | | | __ \ /| | | | Ron Baalke | baalke@mars.jpl.nasa.gov ___| | | | |__) |/ | | |___ Jet Propulsion Lab | baalke@jems.jpl.nasa.gov /___| | | | ___/ | |/__ /| M/S 301-355 | |_____|/ |_|/ |_____|/ Pasadena, CA 91109 | ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 16 Dec 90 23:17:19 GMT From: hpda!hpcupt1!hpindwa!kinkley@ucbvax.Berkeley.EDU (David Kinkley) Organization: Hewlett-Packard, Cupertino CA Subject: Re: pressure-altitude relation References: <1990Dec16.061040.13677@athena.mit.edu> Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu / hpindwa:sci.space / kinkley@hpindwa.cup.hp.com (David Kinkley) / 3:10 pm Dec 16, 1990 / / hpindwa:sci.space / brndlfly@athena.mit.edu (Matthew T Velazquez) / 10:10 pm Dec 15, 1990 / >>>>>Depends on the atmospheric model you use. For the troposphere (valid >>>>>up to circa 20 km): >>>>>P(sea level)/P(z) = [1-L/T(sea level)]^^gamma/(1-gamma) >>>>For the stratosphere ( valid from c. 20 km - 50 km): >>>>P(z) = P(sea level) exp(-gz/RT) ------------------------------------------------------ Thanks Matthew! I haven't quite polished my climbing skills to the point where I'm venturing into the stratosphere but *now* I'm prepared :-) Plugging in numbers into the troposphere model I get a 0.48 bar pressure for Mt Everest (29000 feet) assuming 300K at sea level. Is this right I thought it might be a bit less??? dave kinkley kinkley@hpindwa.HP.COM ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 16 Dec 90 23:10:08 GMT From: hpda!hpcupt1!hpindwa!kinkley@ucbvax.Berkeley.EDU (David Kinkley) Organization: Hewlett-Packard, Cupertino CA Subject: Re: pressure-altitude relation References: <1990Dec16.061040.13677@athena.mit.edu> Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu / hpindwa:sci.space / brndlfly@athena.mit.edu (Matthew T Velazquez) / 10:10 pm Dec 15, 1990 / In article 26774 of sci.space Dave Kinkley writes: ^could somebody give me a pressure-altitude relation... Depends on the atmospheric model you use. For the troposphere (valid up to circa 20 km): P(sea level)/P(z) = [1-L/T(sea level)]^^gamma/(1-gamma) This reads: P of sea level over P of altitude z equals (1 minus L over T of sea level) to the power of (gamma over 1 minus gamma). Where L = 6.5 kelvins/km altitude and gamma = 1.41 for air. For the stratosphere ( valid from c. 20 km - 50 km): P(z) = P(sea level) exp(-gz/RT) In SI units, Pressure is in Pascals and T is in kelvins. Pressure at sea level is 1.013 x 10^^5 pascals. I'm too lazy to look up unit conversions for the rest of the stuff, so I guess you're out of luck in that regard. T Velazquez MIT Aero/Astro brndlfly@athena.mit.edu ---------- ------------------------------ Date: 17 Dec 90 18:08:53 GMT From: rti!dg-rtp!magic!rice@mcnc.org (Brian Rice) Subject: Pioneer 6 Yesterday (Sunday, December 16) was the twenty-fifth anniversary of the launch of Pioneer 6. A wire service report in the local paper says, "The probe was designed to relay measurements from the other side of the sun [that's kind of like the dark side of the moon, I guess :-) ] of magnetic fields, cosmic rays, and solar wind particles." No information was given about Pioneer 6's current venue or status, but the blurb did say that Ames old-timers were planning to tune it in for kicks today. Here's hoping for a "Pioneer 6 Status Report." -- Brian Rice rice@dg-rtp.dg.com +1 919 248-6328 DG/UX Product Assurance Engineering Data General Corp., Research Triangle Park, N.C. ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 17 Dec 90 20:32:49 GMT From: usc!zaphod.mps.ohio-state.edu!lavaca.uh.edu!jetson.uh.edu!cheehh@ucsd.edu Organization: University of Houston Subject: WIN A SPACEFLIGHT TO MIR!!!!!!!!!!!! Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu THE ULTIMATE For immediate release: 10 am Mon. Dec 17 1990 ADVENTURE 1-900-258-2MIR THREE TEXANS SEND "ORDINARY AMERICAN" TO SOVIET SPACE STATION Less than a year from now, someone will get the word he or she has been selected to go into space to visit Mir, the Soviet space station orbiting the Earth. It's the first time virtually everyone has a chance to become an astronaut. The astronaut doesn't have to be a test pilot... or a scientist... or compete against other candidates. It could be almost anyone from almost anywhere. It could be you. The three men who've made it happen are Texans, all from suburban Houston. Their company, Space Travel Services Corp., is headquartered in the Clear Lake area of Houston, right across NASA Road 1 from the Johnson Space Center, where the US manned space program is planned and managed. All three have close ties to the space program and share it's commitment to putting and keeping people in space. David J. Mayer, president and chief executive officer of Space Travel, studied physics at the University of Houston, where he was president of both the University Space Society and University of Houston Students for the Exploration and Development of Space. David has worked in computer system development and construction in the NASA area. He lives in Webster, adjacent to the NASA complex. His Space Travel co-founder, Howard L. Stringer, of Stafford, also has a background in computer systems and other high-tech fields. He graduated cum laude from the University of Texas and his Masters of Business Administration is from UH. Howard, too, is active in organizations which support space programs. He's a director of the Houston Space Society and has served as its president, secretary and treasurer. The third member of Space Travel's management team is James E. Davidson, senior vice president for marketing and business development, of Friendswood. Jim graduated from Columbia University, then earned his MBA from Rice. He's been working for companies planning commercial launches of space vehicles. Davidson shares Mayer's and Stringer's commitment to keeping men and women in space. He is, like Howard, a former treasurer and president of the Houston Space Society and serves as a director of the group. Jim's a former director of the National Space Society and is a senior associate of the Space Studies Institute. The company has a contract with the Soviet space bureau to put an American aboard a Soyuz space capsule with two cosmonauts and fly him or her to Mir, the space station in orbit 400 kilometers above the Earth. (400 km is about the distance from Space Travel's office to Dallas, but without the traffic.) Anyone interested in the trip to space can call the Space Travel information number, 1-900-258-2MIR for details. There is a $2.99 charge per call. Callers who wish to be considered as potential guest astronauts for the flight may stay on the line and register at no additional charge. The selection will be made next December, when an independent judging organization selects one person at random from among the registrants. That person will have the option of taking a million-dollar cash prize or, sometime in late 1992 or early 1993, riding a Russian rocket to the space station, Mir. He or she will spend about a week in orbit and then return... a permanent part of space history. "We don't know who that person will be," Mayer said, "and we've turned over complete control of the selection to an outside firm. But it sure wouldn't disappoint us any if that person turned out to be a fellow Texan." - 30 - -- ------------------------------------------------------------------------------- ............. | Rikhit Arora And, while with silent, lifting mind I've trod | cheehh@uhupvm1.bitnet The high untrespassed sanctity of space, | Arora@uh.edu Put out my hand, and touched the face of God. | ~~~~~~~~~~~~~~~~~~ ------------------------------------------------------------------------------- ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 18 Dec 90 00:50:32 GMT From: sdd.hp.com!news.cs.indiana.edu!msi.umn.edu!cs.umn.edu!uc!nachos.SSESCO.com!SSESCO.com!elmquist@ucsd.edu (Chris Elmquist) Organization: none Subject: Internet address for NASA elements Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu Someone sent e-mail asking for the actual internet address for our NASA element set FTP site. My e-mail is bouncing to him, so I thought I'd post for the benefit of the net. NASA element sets are available for anonymous FTP from: nachos.ssesco.com [192.55.187.18] in the directory: sat_elements/nasa Please use your e-mail address as the anonymous password so that we can trace network problems. Thank you. Chris ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 17 Dec 90 19:33:29 GMT From: trident.arc.nasa.gov!yee@ames.arc.nasa.gov (Peter E. Yee) Organization: NASA Ames Research Center, Moffett Field, CA Subject: NASA Headline News for 12/14/90 (Forwarded) Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu Headline News Internal Communications Branch (P-2) NASA Headquarters Friday, December 14, 1990 Audio Service: 202 / 755-1788 This is NASA Headline News for Friday, December 14, 1990 The turnaround operations at Dryden Flight Research Center to prepare Columbia for its flight back to the Kennedy Space Center are proceeding well. Technicians have removed both Data Display Units which were problematic during the flight. They are being flown back to KSC for troubleshooting. The removal of the Ultraviolet Imaging Telescope's film has been rescheduled for early tomorrow morning. The turnaround crew still expects to be able to fly Columbia on the first leg of its trip on Sunday morning. The flight will make several refueling stops and will lay over at Kelly Air Force Base. In the Orbiter Processing Facility Bay 1, Discovery is set for a brake anti-skid test today. Yesterday, Discovery's nose wheel steering system was tested. The vehicle is scheduled for roll over to the Vehicle Assembly Building at the end of January. In OPF Bay 2, Atlantis' main engines have been removed and taken to the VAB engine shop for post-flight inspection and tests. In the VAB, stacking operations for the solid rocket boosters for the STS-39 mission are nearing completion. Both forward assemblies have been mated and closeout activities now are underway on all the field joints. CORRECTION: Thursday's Headline News inaccurately indicated that the STS-35 post mission crew press briefing was to have occurred yesterday. The STS-35, Astro-1, post-flight crew press conference will take place at the Johnson Space Center, next Thursday, Dec. 20, at 2:00 pm EST. It will be carried live on NASA Select TV. The following are some of the office Christmas parties which have been posted: Dec. 18, Tuesday 12:30 pm Code P, room 5092, Bldg. 6; 2:00 pm Code N, room 5143, Bldg. 6; 2:00 pm Code C, Crystal Gateway 4, Suite 1200; 3:00 pm Code L, room 6061, Bldg. 6; Dec. 19, Wednesday 12:00 pm Code SM, room 137, Bldg. 10B; 2:00 pm Codes XD, XM, XN room 6123, Bldg. 6; Here's the broadcast schedule for Public Affairs events on NASA Select TV. All times are Eastern. **indicates a live program. Programming on NASA Select TV will resume on Tuesday, Dec. 18. All events and times may change without notice. This report is filed daily, Monday through Friday, at 12:00 pm, EST. It is a service of Internal Communications Branch at NASA Headquarters. Contact: CREDMOND on NASAmail or at 202/453-8425. NASA Select TV: Satcom F2R, Transponder 13, C-Band, 72 degrees West Longitude, Audio 6.8, Frequency 3960 MHz. Headline News ------------------------------ End of SPACE Digest V12 #706 *******************