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"930629.DFC" (20436 bytes) was created on 06-29-93
29-Jun-93 Daily File Collection
These files were added or updated between 28-Jun-93 at 21:00:00 {Central}
and 29-Jun-93 at 21:00:20.
=--=--=START=--=--= NASA Spacelink File Name:930629.REL
PLANETARY MISSION SUMMARY June 29, 1993
PUBLIC INFORMATION OFFICE
JET PROPULSION LABORATORY
CALIFORNIA INSTITUTE OF TECHNOLOGY
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
PASADENA, CALIF. 91109
PLANETARY MISSION STATUS
June 29, 1993
GALILEO: The spacecraft is now en route to Jupiter, scheduled to
enter orbit December 7, 1995. Galileo will also fly by asteroid
Ida, at 2400 kilometers, on August 28, 1993. The spacecraft's
performance and condition are excellent except that the high-gain
antenna is only partly deployed; science and engineering data are
being transmitted via the low-gain antenna, which the mission
team is planning to use for the Jupiter mission and the Ida
encounter. Galileo was launched October 18, 1989, flew by Venus
in 1990 and Earth in 1990 and 1992 for gravity assists, and flew
by asteroid Gaspra in October 1991 for scientific observation.
MAGELLAN: The Magellan spacecraft controllers are conducting an
aerobraking program, begun May 25, to lower and circularize the
spacecraft's orbit, permitting higher-resolution global gravity
mapping. In this 80-day innovative procedure, the spacecraft
dips into Venus's upper atmosphere each orbit, slowing and
shortening the orbit without expending fuel. Magellan was
launched May 4, 1989. It radar-mapped more than 98 percent of
Venus's surface from September 1990 to September 1992, and
surveyed parts of the gravitational field from its elliptical
orbit for the next 8 months.
MARS OBSERVER: Spacecraft health and performance are normal.
Mars Observer is scheduled to enter Mars orbit August 24, 1993;
it will be maneuvered into a mapping orbit by November 8 and
science operations are planned to start November 24. Mars
Observer was launched September 25, 1992.
TOPEX/POSEIDON: The satellite is healthy, and all scientific
instruments are performing normally, typically providing three
playbacks per day. The mission is mapping global sea level
changes, reflecting seasonal warming and cooling and winds. So
far it has accumulated 6 months of data. TOPEX/Poseidon was
launched August 10, 1992.
ULYSSES: The spacecraft is in a highly inclined solar orbit, now
more than 33 degrees south relative to the Sun's equator, in
transit from its Jupiter gravity assist in February 1992 toward
its solar polar passages (about 80 degrees south and north) in
1994 and 1995. Spacecraft condition and performance are
excellent, with Ulysses gathering data on the heliosphere -- the
realm dominated by the solar wind, a stream of charged particles
flowing from the Sun. The Ulysses spacecraft was built by the
European Space Agency and launched October 6, 1990.
VOYAGER 1 and 2: The two Voyager spacecraft are continuing their
Interstellar Mission, having remotely detected the heliopause,
the boundary between the solar magnetosphere and interstellar
space, for the first time last month. Voyager 1, launched
September 5, 1977, is currently 7.9 billion kilometers (4.9
billion miles) from the Sun after flying by Jupiter and Saturn in
1979 and 1980; Voyager 2, launched August 20, 1977, to fly by
Jupiter (1979), Saturn (1981), Uranus (1986) and Neptune (1989),
is now 6 billion kilometers (3.8 billion miles) from the Sun.
#####
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:930629.SKD
Daily News/TV Sked 6-29-93
Daily News
Tuesday, June 29, 1993 Two Independence Square; Washington, D.C.
Audio Service:202/358-3014
% STS-57 mission extended one day;
% TOPEX/Poseidon providing researchers with new data;
% Magellan Transition Experiment going well.
Because of weather restrictions today, Endeavour's
STS-57 mission has been extended a day. Expecting to
land this morning, crew members packed experiments and
flight gear and checked the flight control systems.
Tomorrow's landing attempt is targeted for 7:59
a.m. EDT at the Kenndey Space Center. With the one day
extension, the STS-57 mission will have lasted 9
days.
* * * * * * * * * * * * * * * *
Six months into its mission, the U.S.-French TOPEX/Poseidon oceanographic
satellite has recorded the most accurate measurements to date of global sea
level changes. Oceanographers will use the data to calibrate the computer
models that help forecast future climate changes.
The TOPEX/Poseidon project scientist at the Jet
Propulsion Laboratory, Lee-Lueng Fu, states that "changes in
sea level observed from October 1992 to March 1993
are a combination of the effects of seasonal warming
and cooling as well as wind forcing."
The TOPEX/Poseidon satellite was launched in
August 1992 as part of NASA's long-term effort to study
Earth as a global environment system.
* * * * * * * * * * * * * * * *
The Jet Propulsion Laboratory reports that the
Magellan Transition Experiment to circularize the
spacecraft's orbit by lowering it into the top of the Venusian
atmosphere to create drag is going well.
As of June 25, 1993, the spacecraft had made 260 atmospheric drag passes.
Magellan is also being maintained in a specific corridor on its closest passes
to the planet. To slightly raise the altitude at the closest point to the
planet and to maintain a steady course, project officials are planning to
execute a corridor orbit trim maneuver this Thursday. Project officials
anticipate that the orbit will be sufficiently changed by early August so that
only fine-tuning the orbit will be necessary to achieve the desired circular
orbit for high- resolution gravity studies of Venus.
The Magellan experiment is the first time that a spacecraft's orbit has been
changed at another planet by "aerobraking" or using the planet's atmosphere to
create drag.
Here's the broadcast schedule for Public Affairs events on NASA TV. Note that
all events and times may change without notice and that all times listed are
Eastern.
NASA TV will provide continuous coverage of the
STS-57 mission from lift-off to landing.
NASA TV is carried on GE Satcom F2R, transponder 13, C-Band, 72 degrees West
Longitude, transponder frequency is 3960 MHz, audio subcarrier is 6.8 MHz,
polarization is vertical.
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:6_2_2_45_11_20.TXT
MCC Status Report #18
MISSION CONTROL CENTER
STS-57 Status Report #18
Tuesday, June 29, 1993, 5 a.m. CDT
Endeavour's cargo bay doors have been shut and all preparations for a planned
7:44 a.m. CDT landing at Kennedy Space Center's Runway 33 are proceeding
smoothly.
For a 7:44 a.m. Florida touchdown, Endeavour will fire its engines at 6:34
a.m. to begin its descent. The current weather forecast for Kennedy calls for
favorable weather, but there is a chance of rainshowers in the vicinity of the
landing site. Flight controllers will continue to monitor the weather and
receive updated forecasts as the morning progresses.
If needed, a second opportunity also exists at KSC, beginning with an engine
firing by Endeavour at 8:14 a.m. and leading to a 9:23 a.m. touchdown on Runway
33. Opportunities also exist for a landing at Edwards Air Force Base, Calif.,
a backup landing site, but they are not under consideration by flight
controllers as an option today.
After a 6:34 a.m. deorbit burn, Endeavour would enter the atmosphere at about
7:13 a.m. when it reaches an altitude of about 75 miles. Its approach to
Florida will take it across the coast of northern Baja California at about 7:24
a.m. and continuing above northern Mexico to cross the western Texas border at
about 7:26 a.m. It will cross Texas in less than four minutes, traveling
through the central part of the state and passing north of Marfa, south of San
Angelo and south of Waco before crossing the Louisiana border about 7:30 a.m.
After passing almost directly above Alexandria, La., Endeavour will move off
the coast and over the Gulf midway between New Orleans and Mobile, Al., at
about 7:32 a.m. At about 7:36 a.m., still traveling four times the speed of
sound, Endeavour will cross the Florida coast north of Tampa. It will go
subsonic at it passes north of Orlando at about 7:40 a.m. and then perform a
right 232-degree turn above Kennedy as it makes a final approach for touchdown.
-- end--
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:6_2_2_45_11_21.TXT
STS-57 Status Report #19
Tuesday, June 29, 1993, 4:30 p.m. CDT
The STS-57 crew went to sleep at 2:07 p.m. CDT today after unfavorable weather
conditions at Florida's Kennedy Space Center canceled their landing plans.
Low clouds at the Shuttle Landing Facility and possible showers in the Kennedy
area required that today's landing be delayed until Wednesday.
The Shuttle crew completed their deorbit and landing backout procedures, gave
status reports on some middeck payloads, and prepared the vehicle for an
overnight stay in space.
Endeavour's crew will wake up at 10:07 p.m. CDT tonight to begin final
preparations for a Wednesday landing. The first landing opportunity is to
Kennedy Space Center with a deorbit engine firing at 5:48 a.m. CDT and landing
on runway 33 at 6:59 a.m. CDT.
Should weather prove unsuitable for a KSC landing, two back-up landings are
available at Edwards Air Force Base in California. The first opportunity calls
for a deorbit burn at 7:17 a.m. CDT with landing at 8:28 a.m. CDT.
Endeavour continues to perform well as it orbits Earth every 93 minutes in an
elliptical orbit of 257 by 208 nautical miles.
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:6_2_2_45_12.TXT
6/29/93: SPACELINK NOTE--ENDEAVOUR LANDING
Because of weather restrictions today, Endeavour's
STS-57 mission has been extended a day. Expecting to
land this morning, crew members packed experiments and
flight gear and checked the flight control systems.
Tomorrow's landing attempt is targeted for 7:59
a.m. EDT at the Kenndey Space Center. With the one day
extension, the STS-57 mission will have lasted 9
days.
6/28/93: ENDEAVOUR SCHEDULED TO LAND AT KSC TOMORROW MORNING
Mitch Varnes June 28, 1993
KSC Release No. 74-93
Nearly eight days after rocketing into space on the year's fourth
Shuttle mission, the orbiter Endeavour and a six member crew are
preparing to return home tomorrow morning.
Endeavour is now scheduled to land at the Shuttle Landing
Facility (SLF) at 8:44 a.m. EDT on Tuesday. The deorbit burn to
bring Endeavour back to Earth is planned to take place at 7:34
a.m., 70 minutes before landing.
The nominal landing time of 8:44 a.m. is the first of two oppor-
tunities Endeavour has to land at its Florida launch site. The
ship's second chance to land at KSC is at 10:24 tomorrow morning.
Current weather forecasts for tomorrow morning indicate marginal
but potentially favorable conditions for a KSC landing. Endeavour
will reenter Earth's atmosphere over the South Pacific and head
eastward toward the three-mile-long Shuttle runway. The
spaceship will soar over Baja California, Mexico, southern Texas
and the Gulf of Mexico before reaching the west central Florida
coast. Mission commander Ron Grabe will then guide NASA's newest
orbiter high above Orlando and Titusville before bringing the
Shuttle in for a landing onto the concrete runway. Endeavour's
twin sonic booms should be audible over much of Central Florida.
Endeavour roared away from KSC launch pad 39-B on Monday, June 21
at 9:07 a.m. EDT. STS-57 is the fourth flight of Endeavour and
the 56th Space Shuttle mission. During the course of the eight-
day flight, the astronauts successfully conducted scores of
biomedical and materials sciences experiments inside the pres-
surized Spacehab module. Two astronauts particpated in a
spacewalk and the European Retrievable Carrier (EURECA) was
retrieved by the crew and stowed inside Endeavour's payload bay.
EURECA was deployed from the Shuttle Atlantis in the summer of
1992 and contains several experiments to study the longterm ef-
fects of exposure to microgravity.
Endeavour will next fly on mission STS-61, now targeted for
launch in December.
KSC's Shuttle Landing Facility has previously served as the land-
ing site for 15 Shuttle missions. The first KSC landing occurred
at the end of mission STS-41-B, on Feb. 11, 1984. The most
recent KSC landing occurred on April 17, 1993 when STS-56 Com-
mander Ken Cameron guided Discovery to a successful landing.
The KSC news center will open at 5 a.m. on Tuesday to support
Endeavour's landing. Buses will begin transporting members of
the news media to the landing facility beginning at 5:15 a.m.
The last press bus will leave at 7:15 a.m., sharp.
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:6_2_2_45_2.TXT
STS-57 KEPLERIAN ORBITAL ELEMENTS
SPACELINK NOTE: Spacelink contains an IBM MS-DOS/Windows program (V2L9322.ZIP)
that will convert M-50 state vectors into the 2-line format preferred by many
callers. Enter IBM at the GO TO prompt and check out the section on satellite
tracking programs.
STS-57 element set JSC-023 (orbit 128)
STS-57
1 22684U 93 37 A 93180.75961038 .00002843 00000-0 51876-4 0 230
2 22684 28.4577 256.4525 0061638 88.4688 272.3019 15.44734847 1284
Satellite: STS-57
Catalog number: 22684
Epoch time: 93180.75961038 = (29 JUN 93 18:13:50.33 UTC)
Element set: 023
Inclination: 28.4577 deg
RA of node: 256.4525 deg Space Shuttle Flight STS-57
Eccentricity: .0061638 Keplerian Element set JSC-023
Arg of perigee: 88.4688 deg from NASA flight Day 9 vector
Mean anomaly: 272.3019 deg
Mean motion: 15.44734847 rev/day G. L. Carman
Decay rate: 2.843e-05 rev/day~2 NASA Johnson Space Center
Epoch rev: 128
Checksum: 335
G.L.CARMAN
STS-57 FLIGHT DAY 9 STATE VECTOR
STS-57
FLIGHT DAY 9 STATE VECTORS
ON ORBIT OPERATIONS
(Posted 06/29/93 by Roger Simpson)
The following vector for the flight of STS-57 is provided by NASA Johnson
Space Center, Flight Design and Dynamics Division for use in ground track
plotting programs. The vector represents the trajectory of Endeavour
during on orbit operations after the rendezvous with Eureca.
Lift off Time : 1993/172/13:07:21.953
Lift off Date : 06/21/93
Vector Time (GMT) : 180/20:07:21.953
Vector Time (MET) : 008/07:00:00.000
Orbit Count : 129
Weight : 238195.0 LBS
Drag Coefficient : 2.00
Drag Area : 2750.0 SQ FT
M50 Elements Keplerian Elements
----------------------- --------------------------
X = 17659137.2 FT A = 3678.5542 NM
Y = -8590590.4 FT E = 0.007309
Z = 10331874.0 FT I (M50) = 28.20503 DEG
Xdot = 10018.233144 FT/S Wp (M50) = 88.98997 DEG
Ydot = 23117.694788 FT/S RAAN (M50) = 255.24363 DEG
Zdot = 2037.710221 FT/S / N (True) = 351.12519 DEG
Anomalies \ M (Mean) = 351.25371 DEG
Ha = 256.380 NM
Hp = 207.706 NM
Mean of 1950 (M50) : Inertial, right-handed Cartesian system whose
Coordinate System origin is the center of the earth. The epoch
is the beginning of the Besselian year 1950.
X axis: Mean vernal equinox of epoch
Z axis: Earth's mean rotational axis of epoch
Y axis: Completes right-hand system
A: Semi-major axis
E: Eccentricity N: True anomaly
I: Inclination M: Mean anomaly
Wp: Argument of perigee Ha: Height of apogee
RAAN: Right ascension of ascending node Hp: Height of perigee
Questions regarding these postings may be addressed to Roger Simpson,
Mail Code DM4, L. B. J. Space Center, Houston, Texas 77058,
Telephone (713) 483-1928.
Dear Customer, we are in the process of reviewing the contents of
this product and are interested in determining if it fits your needs.
If you use these state vectors, please drop us a postcard and
let us know what we can do to improve your use of this product.
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:6_2_2_45_6.TXT
STS-57 TV SKED REV N
***********************************************************************
NASA SELECT TV SCHEDULE
STS-57
6/29/93
REV N
***********************************************************************
NASA Select programming can be accessed through GE Satcom F2R,
transponder 13. The frequency is 3960 MHz with an orbital position
of 72 degrees West Longitude. This is a full transponder service
and will be operational 24 hours a day.
Two hour edited programs of each flight day will be replayed for Hawaii
and Alaska on Telstar 301, transponder 9, channel 18. The orbital
position is 96 degrees West Longitude, with a frequency of 4060 MHz.
Audio is on 6.2 & 6.8 MHz. The programs will begin on launch day and
continue through landing airing at 11:01PM Central Time.
This NASA Select Television Schedule of mission coverage is available
on COMSTORE, the mission TV schedule computer bulletin board service.
Call 713/483-5817, and follow the prompts to access this service.
NOTE: The STS-57 launch occurred on Monday, June 21st at 8:07AM CDT
---------------------------- Tuesday, June 29 -------------------------
FD9
ORBIT SUBJECT SITE MET CDT
----- ------- ---- --- ---
125 * MISSION STATUS BRIEFING JSC 07/02:23 10:30 AM
128 * CREW SLEEP 08/05:00 01:07 PM
133 * CREW WAKE UP 08/13:00 09:07 PM
-------------------------- Wednesday, June 30 -------------------------
FD10
139 * DEORBIT BURN (Not Televised) 08/21:41 05:48 AM
140 * LANDING KSC 08/22:52 06:59 AM
POST LANDING PRESS CONFERENCE KSC L+TBD
LANDING REPLAYS KSC L+TBD
------------------------ DEFINITION OF TERMS ------------------------
CDT: Central Daylight Time
EFE: Environmental control and life support system
Flight Experiment
EURECA: European Retrievable Carrier
FARE: Fluid Acquisition and Resupply Experiment
FD: Flight Day
JSC: Johnson Space Center
KSC: Kennedy Space Center
LEMZ: Liquid Encapsulated Melt Zone
MET: Mission elapsed Time. The time which begins at the moment
of launch and is read: Days/Hours:minutes. Launch= 00/00:00
MSB: Mission Status Briefing
P/TV: Photo/Television Scene
RMS: Remote Manipulator System
SCG: Solution Crystal Growth
SPACEHAB:Commercial module carried in payload bay
STS: Space Transportation System
TDRE,W: Tracking and Data Relay Satellite, both East and West
longitudes
TDRSS: Tracking and Data Relay Satellite System
T=: Time event duration equals
VTR: Video Tape Recorder
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=END OF COLLECTION---COLLECTED 7 FILES---COMPLETED 21:09:02=--=