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"930323.DFC" (23743 bytes) was created on 03-23-93
23-Mar-93 Daily File Collection
These files were added or updated between 22-Mar-93 at 21:00:00 {Central}
and 23-Mar-93 at 21:01:23.
=--=--=START=--=--= NASA Spacelink File Name:930323.SHU
KSC SHUTTLE STATUS REPORT 3/23/93
SPACE SHUTTLE DAILY STATUS REPORT
Tuesday, March 23, 1993
George H. Diller
Kennedy Space Center
Vehicle: OV-102/Columbia Mission Number: STS-55
Current location: Pad 39-A Orbital altitude: 184 sm
Payloads: Spacelab D-2/SAREX Inclination: 28.45 degrees
Launch date: TBD Nominal landing: KSC
Mission duration: 9 + 1 days Crew Size: 7
IN WORK:
- close rotating service structure around vehicle (12 Noon)
- tail service mast securing
- removal of orbiter refrigerator/freezer experiment samples
- removal of mid-deck experiment lockers
- mating orbiter mid-body umbilical unit
- extension of external tank access arm
- external tank purge
- removal of aft compartment flight doors
- tile inspections
WORK SCHEDULED:
- offload cryogenic reactants tonight
- #3 main engine check valve removal/failure analysis Wednesday
- ordnance disconnects Thursday
- remove heat shields Friday and Saturday
STS-55 WORK COMPLETED:
- external tank liquid hydrogen boiloff
- power down orbiter refrigerator/freezer units
ISSUES AND CONCERNS:
While the aft compartment flight doors are being removed today, work in
the aft and the planned #3 main engine check valve removal will not begin until
Wednesday since offloading fuel cell cryogenic reactants will not be complete
until late tonight.
No manifest option will chosen until a check valve failure analysis has
been completed. A decison is likely to be made on Thursday.
SPECIAL TOPICS:
STS-56:
At Pad 39-B, loading of storable hypergolic propellants is in work today
and Wednesday. The pad is closed to all other work during this activity.
STS-57:
In OPF Bay 1, Endevour's weight and center of gravity determination is in
work and the orbiter will be placed on the transporter tonight. Rollover to
the Vehicle Assembly Building is scheduled for approximately 12 Noon Wednesday.
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:930323.SKD
Daily News/TV Sked 3/23/93
Daily News
Tuesday, March 23, 1993
Two Independence Square,
Washington, D.C.
Audio Service: 202/358-3014
% STS-55 Status Report;
% Upcoming Cyberspace Conference;
% First Woman of Hispanic Heritage to Fly in Space
* * * * * * * * * * * * * * * *
As NASA officials stated in the STS-55 Launch Shutdown Press Conference
yesterday, the reason for the mission abort appears to be that main engine 3
did not fully ignite because a liquid oxygen preburner check valve apparently
experienced an internal leak causing the purge system to be pressurized above
the maximum 50 pounds per square inch allowed. The onboard computers sensed
the higher than allowed pressure in the line and terminated the main engine
ignition sequence.
The amount of time estimated to pick up the Columbia's STS-55 countdown again
is about a minimum of three weeks. No definite schedule has been developed.
Schedule options are under consideration this week.
* * * * * * * * * * * * * * * *
To focus on and provide insight into the new world of Cyberspace, NASA's Lewis
Research Center and the Ohio Aerospace Institute will host a conference in
Cleveland, March 30 and 31.
Cyberspace is a metaphor coined and popularized by science fiction author
William Gibson to represent the 'universe' that human beings enter when they
use computers.
The conference, Vision 21 Symposium on Interdisciplinary Science and
Engineering in the Era of Cyberspace, will focus on this new metaphor.
Conference Chairperson and Lewis research physicist in the center's Power
Technology Division, Dr. Sheila Bailey states "that this new vision includes
not only the Earth's environment and the Martian terrain, but the artificial
reality of cyberspace." Dr. Bailey also feels that the conference mission will
be to foster speculative concepts and advanced thinking in science and
technology. "This event will provide a panoramic view of the research and
technology that will assist humans in exploration activities," she said.
* * * * * * * * * * * * * * * *
NASA's planned launch of the Space Shuttle mission STS-56 will have a special
meaning for the nation's Hispanic community. The crew of the Space Shuttle
Discovery will include the first woman of Hispanic heritage to fly in space.
Dr. Ellen Ochoa will have this honor. Dr. Ochoa holds a degree in physics and
electrical engineering, and is an authority in optical recognition systems for
space automation. She is assigned as a mission specialist on Space Shuttle
mission STS- 56 which is scheduled to launch in early April.
* * * * * * * * * * * * * * * *
Here's the broadcast schedule for Public Affairs events on NASA Select
TV. Note that all events and times may change without notice and that all times
listed are Eastern. Live indicates a program is transmitted live.
Tuesday, March 23, 1993
12:00 pm Adventures in Research
12:15 pm Aeronautics and Space Report
12:30 pm NOVA: The Fastest Planes in the Sky
1:30 pm Images of the Universe from HST
2:00 pm Starfinder 22
2:30 pm And then there was Voyager
3:00 pm TQM 62
Wednesday, March 24, 1993
12:00 pm Inflatable Lunar Habitat
12:15 pm Aeronautics and Space Report
12:30 pm Safe Computing
1:00 pm Apollo 13: 'Houston we've got a problem'
1:30 pm Life on the Moon
2:00 pm Starfinder 23
2:30 pm Birth of NASA
3:00 pm TQM 63
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_12_7.TXT
Post Burn Mir Element Set #959 22 March 93
Mir
1 16609U 86 17 A 93 81.55179959 .00018196 00000-0 25064-3 0 9596
2 16609 51.6178 294.3465 0001631 107.1933 251.9882 15.57294464405629
Satellite: Mir
Catalog number: 16609
Epoch time: 93081.55179959
Element set: 959
Inclination: 51.6178 deg
RA of node: 294.3465 deg Semi-major axis: 3657.4436 n.mi.
Eccentricity: 0.0001631 Apogee altitude: 214.1060 n.mi.
Arg of perigee: 107.1933 deg Perigee altitude: 212.9129 n.mi.
Mean anomaly: 251.9882 deg Altitude decay: 0.0285 n.mi./day
Mean motion: 15.57294464 rev/day Apsidal rotation: 3.7388 deg/day
Decay rate: 1.8196E-04 rev/day2 Nodal regression: -5.0052 deg/day
Epoch rev: 40562 Nodal period: 92.4064 min
Mark T. Severance
Code AR - U.S./Russian Programs Office
NASA-JSC
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:6_2_2_43_3.TXT
STS-55 LAUNCH DELAY
SPACELINK NOTE: We'll post additional information on the launch as
it becomes available. Previously issued news releases and status reports
concerning the STS-55 launch follow.
3/22/93
While igniting Columbia's three main engines which began at
T-6.6 seconds, the onboard computers initiated a main engine abort
sequence. Shutdown was completed at approximately T-3 seconds at
9:51 a.m. EST.
The reason for the abort appears to be that main engine #3
did not fully ignite due to a liquid oxygen preburner check valve
which apparently experienced an internal leak, causing the purge
system to be pressurized above the maximum 50 pounds per square
inch allowed. Ambient pressure would have allowed full engine
ignition to occur. The onboard computers sensed the higher than
allowed pressure in the line and terminated the main engine
ignition sequence.
The amount of time estimated to pick up the Columbia's STS-55 countdown again
is about a minimum of three weeks. No definite schedule has been developed.
Schedule options are under consideration this week.
STS-55 LAUNCH DATE SET FOR MARCH 21,1993
Ed Campion March 12, 1993
Headquarters, Washington, D.C.
George Diller
Kennedy Space Center, Fla.
Release No. 22-93
NOTE TO EDITORS: NEW LAUNCH DATE FOR STS-55 MISSION
NASA Managers today set March 21, 1993 as the launch date for Shuttle
Mission STS-55 which will see Space Shuttle Columbia and her 7 member crew fly
a mission dedicated to the German Space Agency. The major payload for STS-55,
the pressurized spacelab module - designated as Spacelab-D2 for this flight -
will allow the astronauts to conduct a wide range of experiments in the
microgravity environment of space.
The launch window on March 21 opens at 9:52 a.m. EST. Following launch,
Columbia's crew will be divided into two teams each working a 12-hour shift, so
that science operations can be carried out around the clock. The Spacelab-D2
mission duration is planned for 9 days and will conclude with a landing at
Kennedy Space Center's Shuttle Landing Facility.
Columbia's launch date will have an influence on the next mission to be
flown. Space shuttle Discovery, flying the ATLAS 2 payload on Shuttle Mission
STS-56, now targeted for launch sometime around April 7th. The actual launch
date for STS-56 will be set at a Flight Readiness Review meeting which will be
held approximately two weeks before launch.
"The Shuttle team has done a great job in addressing and closing issues
such as the hydraulic flex hose problem and putting together a new plan for
processing activities" said Shuttle Director Tom Utsman. "Also the cooperation
we've received from the United States Navy, the United States Air Force and
Hughes Space and Communication Company made the March 21st launch of Columbia
possible."
STS-55 STATUS 3/08/93
DAILY NEWS/TV SKED
Daily News
Monday, March 8, 1993
Managers and engineers will continue to asses the launch schedule impact
attributable to inspections of the hydraulic flex hoses and clean-up and
inspection of the aft engine compartment and number two main engine. An
assessment of a new schedule will be made available early this week.
2/26/93: MARCH 14 SET AS LAUNCH DATE FOR STS-55 MISSION
Ed Campion
Headquarters, Washington, D.C. Feb. 26, 1993
George Diller
Kennedy Space Center, Fla.
KSC Release No. 16 - 93
NASA managers today set March 14, 1993 as the launch date
for Shuttle Mission STS-55 which will see Space Shuttle Columbia
and her seven-member crew fly a mission dedicated to the German
Space Agency.
The major payload for STS-55, the pressurized spacelab
module - designated as Spacelab-D2 for this flight - will allow
the astronauts to conduct a wide range of experiments in the
microgravity environment of space. Some 90 experiments are
planned during the mission.
The launch announcement follows the removal, inspection and
replacement of the high pressure oxidizer turbopumps on
Columbia's three main engines. The pump changeout came after a
search of processing paperwork could not conclusively determine
that the pumps were equipped with a newer version of turbine tip
seal retainers. The seals minimize the flow of gas around the
tips of the turbine blades to enhance pump performance and the
retainers hold the seals in place.
The launch window on March 14 extends from 10 a.m. until
12:30 p.m. EST. Following launch, Columbia's crew will be
divided into two teams, each working a 12-hour shift, so that
science operations can be carried out around the clock. The
Spacelab-D2 mission duration is planned for 9 days and will con-
clude with a landing at Kennedy Space Center's Shuttle Landing
Facility. This date was chosen primarily because it was the
first open date on the Eastern Range during this time frame.
# # # # #
STS-55 REVIEW COMPLETED, LAUNCH DATE TO BE SET LATER
Ed Campion
Headquarters, Washington, D.C. February 11, 1993
George Diller
Kennedy Space Center, Fla.
NOTE TO EDITORS: N93-7
NASA managers today completed their review of the flight readiness of
Shuttle Mission STS-55, a mission dedicated primarily to the German Space
Agency for research in life and microgravity sciences.
Because of a decision reached yesterday to remove and replace
Columbia's high pressure oxidizer pumps, a launch date for the mission was not
set. Managers are still assessing the time it will take to perform the work
and resume launch preparations. Tom Utsman, Director of the Space Shuttle
Program, said a launch date for STS-55 would be set the last week in February.
The pumps being replaced feed super cold oxygen to the Shuttle's three
main engines. They are being removed because a search of processing paperwork
could not conclusively determine that the pumps are equipped with a newer
version of turbine tip seal retainers. The tip seals minimize the flow of gas
around the tips of the turbine blades to enhance pump performance and the
retainers hold the seals in place.
The major payload for Space Shuttle Columbia and her 7 member crew is
the pressurized Spacelab module - designated Spacelab-D2 - which will allow the
astronauts to conduct a wide range of experiments in the microgravity
environment of space. Some 90 experiments are planned during the mission.
This will be the 14th flight of the orbiter Columbia and the 54th Space
Shuttle mission.
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:6_2_2_44_2.TXT
NOTE: This file is too large {41942 bytes} for inclusion in this collection.
The first line of the file:
STS-56 ATLAS 2 FACT SHEET
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:6_8_3_4_59.TXT
MAGELLAN STATUS 3/22
Magellan Status
Status Report of Magellan for Monday, March 22, 1993:
1. The Magellan spacecraft continues to operate normally, gathering gravity
data in its fourth 243-day cycle of Venus. All starcals over the weekend were
successful. There was a TWTA spurious shut-off earlier this morning, which was
corrected automatically.
2. There was no commanding of the spacecraft since Friday, and none is planned
for today. Tomorrow the high rate gyro biases will be uplinked in the
preparation for the high rate gyro calibration test starting Wednesday.
3. Magellan has operated using low rate gyro biases through most of the
mission to date, so it has not been necessary to calibrate the gyros in high
rate mode. But the aerobraking experiment which will start in late May has a
moderate probability of pushing the attitude control into the range where the
high rate mode is needed.
4. The 24th Lunar and Planetary Science Conference in Houston was attended by
several Magellan scientists who presented technical papers. The Magellan
exhibit was of considerable interest to the conference participants.
5. A memorial session on the Geology of Venus was held on Monday in tribute to
Valery Leonidovich Barsukov, the late director of the V. I. Vernadsky Institute
in Moscow. The session was chaired by J. W. Head and R. S. Saunders.
Academician Basurkov was very active in promoting international cooperation in
planetary exploration and made possible the sharing of Russian data on Venus
exploration.
6. Magellan has completed 7042 orbits of Venus since August 10, 1990.
Magellan is 64 days from the end of Cycle-4.
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:6_8_5_3_47.TXT
ULYSSES STATUS REPORTS 132 & 133
SUBJECT: ULYSSES MISSION OPERATIONS REPORT No. 132
PERIOD: 2nd March to 8th March 1993
1. MISSION OPERATIONS
Experiment reconfigurations have been carried out as
required.
On 2nd March a HET calibration was carried out.
On 3rd March HET was reset.
On 8th March a KEP (Energetic Particles instrument) in-flight
calibration was carried out.
Routine Earth pointing manoeuvres were performed on 3rd,
5th, and 7th March.
An average of 93.2 % data recovery was achieved during the
reporting period.
The percentage of data acquired as a function of bit rate is
as follows:
1024 bps 45.86 %
512 bps 46.92 %
On 4th March a complete pass at Goldstone was lost due to a
maser failure. An extra pass was made available at Canberra
and a rapid replanning of operations took place to minimise
the amount of data loss. Operations for the following day
were also replanned.
On 5th March the Goldstone maser was brought back into
operation. The total data loss following this failure was 4
1/2 hours. More than 27 hours of data would have been lost
if the replanning had not occurred. The support from the
Deep Space Network in providing extra coverage was much
appreciated.
2. SPACECRAFT STATUS
POWER
Nominal.
Estimated S/C power consumption 256 watts.
AOCS
Nominal.
TTC
The 34 meter ground stations are in use to support TTC
operations. Ranging from 34 meter ground stations is
performed when the spacecraft is configured for bit rates of
1024 bps or less. Ranging passes from 70 meter ground
stations are also being taken periodically.
Received downlink level -137 dBm.(34 meter) X-band.
(Variations of up to 10 db. can be expected as a result of
station antenna in use, local weather conditions, and
spacecraft antenna off-pointing).
Received uplink level -126 dBm.
DATA HANDLING
Nominal.
THERMAL
Nominal.
3. FLIGHT DYNAMICS
Solar Aspect The angle increased from 4.64 on
Angle (deg.) 2nd March to 4.91 on 8th March.
Sun-Probe-Earth The angle increased from 4.63 on
Angle (deg.) 2nd March to 4.90 on 8th March.
Spin Rate 4.979 rpm.
4. ORBITAL DATA
Data taken at 13:00 PDT on 8th March.
Distance from Earth 598,709,567 km.
Velocity relative to the Earth 105,627 km/hr.
Velocity relative to the Sun 35,740 km/hr.
Ecliptic latitude 19.5 deg/south
5. PLANNED OPERATIONS
Routine data gathering operations will continue together
with experiment reconfigurations as required.
On 10th March a HED (Magnetic Field instrument) calibration will
be carried out.
On 15th March a KEP in-flight calibration will be carried
out.
Earth pointing manoeuvres will be carried out on 9th, 11th,
13th, and 15th March.
Periods of 2048 bps at low antenna elevations will now be
avoided only when using DSS42, which shows poorer
performance due to larger tracking errors. Playback at low
elevations will, however, continue to be avoided.
6. GROUND SEGMENT
The ground segment performed nominally during the reporting
period with the exception of the failure at Goldstone
referred to above.
SUBJECT: ULYSSES MISSION OPERATIONS REPORT No. 133
PERIOD: 9th March to 15th March 1993
1. MISSION OPERATIONS
Experiment reconfigurations have been carried out as
required.
On 10th March a HED (Magnetic Field instrument) calibration
was carried out.
On 15th March a KEP (Energetic Particles instrument) in-flight
calibration was carried out.
Routine Earth pointing manoeuvres were performed on 9th,
11th, 13th and 15th March.
An average of 98.2 % data recovery was achieved during the
reporting period.
The percentage of data acquired as a function of bit rate is
as follows:
1024 bps 53.60 %
512 bps 44.39 %
2. SPACECRAFT STATUS
POWER
Nominal.
Estimated S/C power consumption 256 watts.
AOCS
Nominal.
TTC
The spacecraft is currently configured with receiver 2 as
the prime unit fed via the high gain antenna and with
receiver 1 as backup fed through the low gain antenna (LGA-
F). The downlink is provided through EPC2/TWTA2.
The 34 meter ground stations are in use to support TTC
operations. Ranging from 34 meter ground stations is
performed when the spacecraft is configured for bit rates of
1024 bps or less. Ranging passes from 70 meter ground
stations are also being taken periodically.
Received downlink level -136 dBm.(34 meter) X-band.
(Variations of up to 10 db. can be expected as a result of
station antenna in use, local weather conditions,
andspacecraft antenna off-pointing).
Received uplink level -121 dBm.
DATA HANDLING
Nominal.
THERMAL
Nominal.
3. FLIGHT DYNAMICS
Solar Aspect The angle increased from 4.87 on
Angle (deg.) 9th March to 5.51 on 15th March.
Sun-Probe-Earth The angle increased from 4.98 on
Angle (deg.) 9th March to 5.62 on 15th March.
Spin Rate 4.979 rpm.
4. ORBITAL DATA
Data taken at 13:00 PDT on 15th March.
Distance from Earth 599,711,379 km.
Velocity relative to the Earth 102,385 km/hr.
Velocity relative to the Sun 35,975 km/hr.
Ecliptic latitude 19.9 deg/south
5. PLANNED OPERATIONS
Routine data gathering operations will continue together
with experiment reconfigurations as required.
Earth pointing manoeuvres will be carried out on 17th, 19th,
21st, and 23rd March.
On 20th March a HUS (Solar X-ray instrument) datation test will
commence.
On 21st March the HUS datation test will terminate.
On 22nd March a KEP in-flight calibration will be carried
out.
Periods of 2048 bps at low antenna elevations will now be
avoided only when using DSS42, which shows poorer
performance due to larger tracking errors. Playback at low
elevations will, however, continue to be avoided.
6. GROUND SEGMENT
The ground segment performed nominally during the reporting
period.
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:8_3.TXT
NOTE: This file is too large {17715 bytes} for inclusion in this collection.
The first line of the file:
NASA TEACHER RESOURCE CENTER TRCN NETWORK
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:9_4_2_5.TXT
NOTE: This file is too large {133154 bytes} for inclusion in this collection.
The first line of the file:
EDUCATIONAL HORIZONS WINTER 1992 Volume 1 Number 4
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=END OF COLLECTION---COLLECTED 9 FILES---COMPLETED 21:12:59=--=