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"930413.DFC" (32250 bytes) was created on 04-13-93
13-Apr-93 Daily File Collection
These files were added or updated between 12-Apr-93 at 21:00:00 {Central}
and 13-Apr-93 at 21:19:30.
=--=--=START=--=--= NASA Spacelink File Name:930413.REL
4/13/93: COMPUTER PROGRAM WILL CATALOG ASTRONOMICAL SKY SURVEY
Charles Redmond
Headquarters, Washington, D.C. April 13, 1993
Jim Doyle
Jet Propulsion Laboratory, Pasadena, Calif.
RELEASE: 93-067
Scientists at NASA's Jet Propulsion Laboratory (JPL) and the
California Institute of Technology (Caltech), both in Pasadena,
Calif., announced today that they have developed a computer
software system to catalog and analyze the estimated half billion
sky objects in the second Palomar Observatory sky survey.
The survey of the northern sky includes more than 3,000
digitized photographic plates produced by Palomar, located in San
Diego.
Drs. Usama Fayyad and Richard Doyle of JPL said the system,
called Sky Image Cataloging and Analysis Tool (SKICAT), will be
delivered to Caltech this month. SKICAT is based on state-of-
the-art machine learning, high performance database and image
processing techniques.
Caltech astronomer Professor S. Djorgovski said each
photographic plate is being digitized into 23,040 by 23,040-pixel
images at the Space Telescope Science Institute, Baltimore. The
resulting data set will not be surpassed in quality or scope for
the next decade, he said.
"The sky object classification task is manually forbidding.
The plates contain hundreds of millions of sky objects. Humans
are unable to visually process the fainter objects in the
survey," Djorgovski said.
Fayyad said the core of the new system includes two
integrated machine learning mathematical formulas, called
algorithms. These algorithms automatically produce decision
trees for the computer based on astronomer-provided training data
or examples. A machine learning program learns to classify new
data based on training data provided by human experts.
Caltech astronomer Nick Weir and Fayyad said SKICAT has a
correct sky object classification rate of about 94 percent, which
exceeds the performance requirement of 90 percent needed for
accurate scientific analysis of the data.
By contrast, Fayyad said, the best performance of a
commercially available learning algorithm was about 75 percent.
By training the learning algorithms to predict classes for faint
astronomical objects on the survey plates, the algorithms can
learn to classify objects that actually are too faint for humans
to recognize.
The training data for faint objects was obtained from a
limited set of charge coupled device images taken at a much
higher resolution than the survey images, Weir said.
The SKICAT system will produce a comprehensive survey
catalog database containing about one-half billion entries by
automatically processing about three terabytes (24 trillion bits,
8-bits to a byte) of image data.
Since SKICAT can classify sky objects that are too faint for
humans to recognize, the SKICAT catalog will contain a wealth of
new information not obtainable using traditional cataloging
methods, Weir said. Because sky objects up to one visual
magnitude fainter now can be processed, the number of classified
catalog entries will be approximately three times larger than has
been possible so far with other techniques.
"Some historical sky object classification tasks performed
over a period of years could now be achieved in a few hours,"
Weir said.
One major benefit of this program includes freeing
astronomers from the tedium of an intensely visual and manual
task so they may pursue more challenging analysis and
interpretation problems, according to Djorgovski.
"This is an excellent example of the use of machine learning
technology to automate an otherwise infeasible task of dealing
with an amount of data that is simply overwhelming to humans,"
Fayyad said. "SKICAT represents a new generation of intelligent
trainable tools for dealing with the huge volumes of scientific
image data that today's instruments collect."
"We view SKICAT as a step towards the development of the
next generation of tools for the astronomer of the turn of the
century and beyond," Djorgovski said.
-end-
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:930413.SHU
KSC SHUTTLE STATUS REPORT 4/13/93
KENNEDY SPACE CENTER SPACE SHUTTLE STATUS REPORT
Tuesday, April 13, 1993
KSC Contact: Bruce Buckingham
Mission: STS-56/ATLAS-2/SSBUV Orbital altitude: 184 miles
Vehicle: Discovery/OV-103 Inclination: 57 degrees
Mission Duration: 8 days/6 hours Crew size: 5
KSC Landing Date/Time: April 16/approximately 7:33 a.m.
NOTE: The Shuttle Discovery remains in orbit following launch on
April 8 at 1:29 a.m. Landing is scheduled for KSC on Friday,
April 16 at 7:33 a.m.
-----------------------------------------------------------------
Mission: STS-55/SL-D2 Orbital Altitude: 184 miles
Vehicle: Columbia/OV-102 Inclination: 28.45 degrees
Location: Launch Pad 39-A Crew Size: 7
Mission Duration: 8 days/22 hours KSC Landing: May 3
Target Launch Date: NET April 24
Launch Window: 10:52 a.m. - 12:22 p.m.
IN WORK TODAY:
* Helium signature leak checks
* Main engine leak checks
WORK SCHEDULED:
* Continue engine check valve leak checks following helium sig-
nature tests
* Liquid hydrogen cavity purge
* Orbital maneuvering system heater checks (Wednesday)
* Preparations to enter spacelab to make final service of ex-
periments (Thursday)
* External tank purges (Thursday)
* Begin aft engine compartment closeouts (Thursday)
* Close payload bay doors for flight (Friday)
WORK COMPLETED:
* Microwave scanning beam landing system (MSBLS) tests
* Spacelab power-up and vent checks
* Open payload bay doors
* Helium signature leak check preparations
* Main engine flight readiness test
-----------------------------------------------------------------
Mission: STS-57/Spacehab/EURECA-Retrieval Orbital Alt.: 287 miles
Vehicle: Endeavour/OV-105 Inclination: 28 degrees
Location: Vehicle Assembly Building Crew Size: 6
Mission Duration: 7days/23 hours Target KSC Landing: May 26
Target Launch Date: NET May 18
IN WORK TODAY:
* Shuttle interface test
* External tank foaming operations
* Pre-rollout inspections
WORK SCHEDULED:
* SRB hydraulic closeouts
* Begin main engine installation April 16
* Rollout to pad 39-B targeted for NET April 22
WORK COMPLETED:
* Main engine interface inspections
* T-0 umbilical closeouts, leak checks and cavity purge
# # # #
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:930413.SKD
DAILY NEWS/TV SKED
Daily News
Tuesday, April 13, 1993 Two Independence Square, Washington, D.C.
Audio Service: 202/358-3014
% Spartan successfully retrieved;
% Preparations for Columbia's upcoming launch still underway.
* * * * * * * * * * * * * * * *
Space Shuttle Discovery's crew successfully retrieved
the Spartan science satellite this morning. Spartan
was deployed Sunday.
Spartan spent 2 days pointing its scientific
instruments towards the sun to probe the nature of
the solar wind and the sun's corona. The information
gathered by the instruments was tape-recorded
onboard Spartan and will be analyzed by scientists
when Discovery returns to Earth.
Discovery's 16 Shuttle mission is scheduled to land at
the Kennedy Space Center, Friday.
* * * * * * * * * * * * * * * *
Technicians at the Kennedy Space Center continue to
prepare Space Shuttle Columbia for its upcoming
mission. Scheduled to launch no earlier than April
24, 1993, Columbia will carry the Spacelab-D2 as its
primary payload. Over 90 experiments are planned
during the mission. The 7-member crew will be
divided into two teams so that science operations can
be carried out around the clock.
The STS-55 mission will be devoted primarily to
Germany for conducting a wide range of experiments
in the microgravity environment of space flight.
Space Shuttle Columbia's STS-55 mission is planned
for 9 days with a landing at the Kennedy Space
Center.
* * * * * * * * * * * * * * * *
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. Live indicates a program is
transmitted live.
Continue d coverage of Space Shuttle Discovery STS-56 mission
Live 11:00a/ Mission Update: Providing viewers with a brief
but thorough update of the mission.
NASA TV will continue with its 24-hour a day coverage of
the STS-56 mission.
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_44_12_24.TXT
ATLAS 2 Public Affairs Status Report #10
6:00 p.m. CDT, April 12, 1993
4/17:31 MET
Spacelab Mission Operations Control
Marshall Space Flight Center
Huntsville, Alabama
"We have passed the halfway mark in the mission now, and the
science teams at Spacelab Mission Operations Control are very
pleased with the data they are getting," said Teresa Vanhooser,
mission manager for NASA's second Atmospheric Laboratory for
Applications and Science (ATLAS 2). "We are looking forward to
sending them off with a lot of data about the Earth's atmosphere
and the sun to begin their post-mission analyses."
ATLAS 2 has completed about 70 orbits of observations. Fourteen of
those orbits were devoted to two solar pointing periods, with the
rest focusing on the atmosphere. Currently, the Shuttle
Discovery's cargo bay is pointed toward Earth for the flight's
third period of atmospheric observations. All the ATLAS 2
instruments continue to operate well.
The Millimeter-Wave Atmospheric Sounder (MAS), a cooperative effort
of Germany, Switzerland and the United States, looks through the
atmosphere over the side of the Shuttle cargo bay to detect
microwave emissions of key components that affect global ozone
levels. For most of the current 19-orbit atmospheric viewing
period, the MAS radio antenna has been scanning the atmosphere for
levels of ozone and water vapor. Water vapor plays a central role
in ozone photochemistry because it is the source of active hydrogen
compounds that dominate ozone photochemical loss above 30 miles (50
km). It is also a primary tracer of motion in the middle
atmosphere. Therefore, MAS water vapor measurements provide
important information about the distribution of ozone.
MAS Principal Investigator Dr. Gerd Hartmann, from the Max Plank
Institute for Aeronomy in Germany, reports his instrument will take
more data during this flight than it did during ATLAS 1.
Improvements in the instrument should provide resolution twice as
sharp as that of observations collected during last year's flight.
In addition, improved mathematical models are giving the science
team better real-time data on chlorine monoxide, ozone and water
vapor than on the last mission. The MAS team also was quite
pleased with preliminary analysis of a unique microwave scan of the
moon they performed earlier, saying they "got exactly what they
expected." It was essentially a calibration exercise to measure
the scanning patten of their antenna in space against an object of
known brightness. However, it also was the first time a scan has
been made of the moon at the MAS operating frequencies.
The Shuttle Solar Backscatter Ultraviolet (SSBUV) team has used its
improved capability since the last ATLAS flight to preview their
ozone measurements in near-real time. A small amount of ozone data
has already been reviewed by the SSBUV staff at Goddard Space
Flight Center. Principal Investigator Ernest Hilsenrath said rough
analysis indicates the ozone level is about what they would expect
it to be at this time of year. However, he stressed that ozone
trends must be tracked on a long-term basis. While Shuttle SBUV
flights provide important short-term observations, their primary
value is to verify the accuracy of ozone-monitoring instruments
aboard free-flying satellites. "The best global ozone measurements
are being made by the National Oceanic and Atmospheric
Administration's NOAA-11 satellite, and that is our primary target
for concurrent measurements," said Hilsenrath. Thus far, the
flight paths of NOAA 11 and the Shuttle Discovery have allowed at
least 11 orbits of comparisons.
In an experiment to test their new capability for ground control of
their spectrometer gratings, the SSBUV team took readings of sulfur
dioxide over Asia and the Eastern United States during the last 24
hours. They worked closely with a Marshall Space Flight Center
team which tracks global weather patterns to determine when cloud
cover over target areas would allow sulfur dioxide readings.
The Atmospheric Trace Molecule Spectroscopy (ATMOS) team took data
both on their dedicated flight recorder and via low-rate downlinks
from the Spacelab High Data Rate Recorder. Late this afternoon,
the ATMOS recorder reached its capacity, and plans were made to
downlink data from as many of the remaining orbital sunrises and
sunsets Tracking and Data Relay Satellite coverage will permit.
Priority will be given to sunrises, since those observations over
the Northern Hemisphere should reveal important information about
factors influencing suspected ozone depletion in that region.
However, sunsets will be downlinked as well, as these measurements
are important for verifying similar instruments aboard the Upper
Atmosphere Research Satellite.
The Solar Spectrum (SOLSPEC) experiment continued to do double duty
as an atmospheric instrument, taking readings of the distribution
of ozone by altitude. The other three solar instruments are on
standby, awaiting four orbits of solar observations which will
begin Tuesday morning after the SPARTAN retrieval.
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:6_2_2_44_12_25.TXT
STS-56 Status Report #14
MISSION CONTROL CENTER
Tuesday, April 13, 1993, 5:30 a.m. CDT
Discovery's crew sailed through the retrieval of a science satellite this
morning that they had dropped off early Sunday.
After Commander Ken Cameron had eased Discovery up to the Spartan satellite,
Mission Specialist Ellen Ochoa slipped the shuttle's mechanical arm over a
special fixture on the science platform and locked on at 2:20 a.m. CDT. Ochoa
then lowered the satellite into its latches in the cargo bay and locked them in
place at 3:02 a.m. CDT.
Spartan spent two days flying free of Discovery, pointing its scientific
instruments at the sun to probe the nature of the solar wind and the sun's
corona. The information gathered by the instruments was tape recorded onboard
Spartan and will be analyzed by scientists after Discovery brings it back to
Earth. All activities involved with Spartan's deployment and retrieval went
exactly as scheduled with no problems encountered, in fact, using less
propellant than had been predicted preflight.
Members of the blue shift are now at work on Discovery -- Cameron, Ochoa and
Pilot Steve Oswald. Discovery has been powered down to its normal
electricity-conserving mode for this flight, and much of the rest of today will
be spent pointing the atmospheric insturments of the ATLAS-2 array at sunrises
and sunsets so they may continue ozone-related research.
Discovery is now in a 162 by 157 nautical mile high orbit, circling Earth every
90 minutes and 31 seconds.
* * * * *
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:6_2_2_44_12_26.TXT
ATLAS 2 Public Affairs Status Report #11
6:00 a.m. CDT, April 13, 1993
5/05:31 MET
Spacelab Mission Operations Control
Marshall Space Flight Center
Huntsville, Alabama
As the fifth night of the second Atmospheric Laboratory for
Applications and Science (ATLAS 2) mission got under way, science
operations were temporarily put on hold, while the Space Shuttle
Discovery crew members retrieved the Spartan-201 satellite, and
then resumed after the satellite grapple concluded.
The Atmospheric Trace Molecule Spectroscopy (ATMOS) experiment
measured the chemical and physical composition of the middle
atmosphere. Since ATMOS first flew on Spacelab 3 in 1985,
scientists have identified over 30 different gases that are present
in the atmosphere and their location by altitude, including several
chlorofluorocarbons, nitrogen-oxygen compounds, ozone, carbon
monoxide, carbon dioxide, water and methane.
The ATMOS instrument viewed the stratosphere at orbital sunrise and
sunset, gathering information in the infrared portion of the
electromagnetic spectrum. Since trace gas molecules absorb solar
radiation at different wavelengths, ATMOS determines which
wavelengths are being absorbed, giving scientists a more detailed
picture of the molecular makeup of the atmosphere. ATMOS data from
ATLAS 2 will be compared to information gathered during other
missions to note worldwide, seasonal and long-term atmospheric
changes. ATMOS data will be compared with infrared measurements
obtained by the Upper Atmosphere Research Satellite (UARS).
The Millimeter-wave Atmospheric Sounder (MAS) instrument, a
multi-national ATLAS 2 investigation, measured the amounts of water
vapor, ozone and chlorine monoxide (a major culprit in ozone
destruction), as well as temperature, in the middle atmosphere.
The ozone layer absorbs ultraviolet light from the sun, protecting
Earth from this harsh radiation and providing a heat source in the
middle atmosphere.
The MAS instrument uses a parabolic antenna to receive extremely
faint signals from our atmosphere. This permits scientists such as
Principal Investigator Dr. Gerd K. Hartmann of the Max Plank
Institute for Aeronomy in Germany to infer trace gas concentrations
from the emitted radiation.
The Shuttle Solar Backscatter Ultraviolet (SSBUV) experiment
continued to make calibration measurements for NASA and NOAA
free-flying ozone instruments, part of the National Plan for
Stratospheric Monitoring. The SSBUV instrument makes its ozone
measurements by comparing the amount of solar radiation reaching
the top of the Earth's atmosphere to the amount being scattered
back from the atmosphere. This information gives scientists a
measure of the amount of ozone present in a given area. In
addition, the device continued to operate successfully in its new
experimental mode as it acquired its third set of sulfur dioxide
measurements in the troposphere (lower atmosphere), this time over
eastern Asia.
The Solar Spectrum (SOLSPEC) experiment, designed primarily for
solar observations, demonstrated its versatility by spending much
of the last 12 hours viewing the Earth, looking at ultraviolet and
visible light scattering back from the top of the atmosphere.
SOLSPEC's Earth-viewing, or nadir pointing, capability uses a
technique similar to that of SSBUV to determine the amount of ozone
in the middle atmosphere.
The instrument had also completed some very good coincident
measurements with the Solar Spectrum (SOSP) device, SOLSPEC's twin
counterpart, aboard the European Retrievable Carrier (EURECA)
satellite, especially during the second solar viewing period. The
scenarios for these comparative observations, and also for those
made by the ATLAS-2 Measurement of the Solar Constant (SOLCON)
experiment and the EURECA Solar Variation (SOVA) device, were
prepared by the European Space Agency's European Space Observation
Center (ESOC) in Germany.
During the next 12 hours, the four solar science instruments for
ATLAS 2 will begin their third period of solar observations. The
Active Cavity Radiometer Irradiance Monitor, from the Jet
Propulsion Laboratory, and Belgium's SOLCON experiment will measure
the total solar energy received by the Earth. The SOLSPEC
experiment will concentrate on the sun's radiant output in
ultraviolet, visible and infrared wavelengths while the U.S. Naval
Research Laboratory's Solar Ultraviolet Spectral Irradiance Monitor
examines solar output in the ultraviolet wavelengths.
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:6_2_2_44_12_27.TXT
STS-56 Status Report #15
MISSION CONTROL CENTER
Tuesday, April 13, 1993, 11 a.m. CDT
With the SPARTAN satellite safely back in the payload bay, Discovery's crew
turned its attention back to the ATLAS-2 complement of instruments.
STS-56 Pilot Steve Oswald continued to conduct carefully choreographed
manuevers of the orbiter using the small thruster rockets to assist in pointing
the various experiments at the Sun above the payload bay and as it rises and
sets on each horizon.
During the dark portions of each orbit the spacecraft is rotated one full turn
to keep the instruments pointed toward darkness for cooling purposes.
Crew members also conducted several ham radio contacts with schools in Otego,
New York and in Montana.
Mission Specialists Ken Cockrell and Mike Foale are scheduled to wake up at
about one this afternoon to relieve Oswald, Commander Ken Cameron and Mission
Specialist Ellen Ochoa currently overseeing all orbiter and payload activities.
The long-range weather report from the Spacefllight Meteorology Group at the
Johnson Space Center shows the possibility of rain and thunderstorms in the
vicinity of the Kennedy Space Center at landing time Friday. Saturday's weather
is forecast to improve.
Discovery is currently in a 160 by 157 orbit, circling the Earth every 90
minutes.
* * *
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:6_2_2_44_12_28.TXT
STS-56 Status Report #16
MISSION CONTROL CENTER
Tuesday, April 13, 1993, 6 p.m. CDT
Discovery's astronauts continued to take high resolution photographs of the
Earth and worked to restore some experiment support equipment to operations
since retrieving the SPARTAN satellite early this morning.
A laptop computer used by the HERCULES experiment to identify and append
precise geographic location to Earth observations photographs was replaced and
Ken Cockrell made some programming changes that will allow another to help
store the information, allowing the crew to make as much use of the HERCULES
system as possible.
Mike Foale inspected the connections among the computer, antenna, and receiver
that receive and store precise positioning cues from a Global Positioning
System satellite. After the flight, scientists may be able to use that
information to verify the exact location of the orbiter when ATLAS-2
instruments recorded their readings. The developmental system appears now to
be in working order.
The long-range weather report from the Spaceflight Meteorology Group at the
Johnson Space Center shows the possibility of rain and thunderstorms in the
vicinity of the Kennedy Space Center at landing time Friday. Saturday's weather
is forecast to improve.
Discovery is currently in a 161 by 157 orbit, circling the Earth every 90
minutes.
- end -
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:6_2_2_44_7.TXT
STS-56 Keplerian Elements/State Vector
STS-56 element set GSFC-019 (orbit 83)
STS-56
1 22621U 93 23 A 93103.37311814 0.00047945 00000-0 13817-3 0 199
2 22621 57.0042 155.1072 0004785 279.7972 80.2565 15.92688268 833
Satellite: STS-56
Catalog number: 22621
Epoch time: 93103.37311814 (13 APR 93 08:57:17.41 UTC)
Element set: GSFC-019
Inclination: 57.0042 deg
RA of node: 155.1072 deg Space Shuttle Flight STS-56
Eccentricity: 0.0004785 Keplerian Elements
Arg of perigee: 279.7972 deg
Mean anomaly: 80.2565 deg
Mean motion: 15.92688268 rev/day Semi-major Axis: 6672.8958 Km
Decay rate: 0.48E-03 rev/day*2 Apogee Alt: 297.70 Km
Epoch rev: 83 Perigee Alt: 291.31 Km
NOTE - This element set is based on NORAD element set # 019.
The spacecraft has been propagated to the next ascending
node, and the orbit number has been adjusted to bring it
into agreement with the NASA numbering convention.
R.A. Parise, Goddard Space Flight Center
G.L.CARMAN
STS-56 Flight Day 6 Vector
STS-56
FLIGHT DAY 6 STATE VECTOR (ACTUAL)
ON ORBIT OPERATIONS
(Posted 04/13/93 by Bruce Williamson)
The following vector for the flight of STS-56 is provided by NASA
Johnson Space Center Flight Design and Dynamics Division for use in
ground track plotting programs. The vector is valid for flight
day six. The vector represents the trajectory of Discovery after
completion of the SPARTAN rendezvous. Questions regarding these
postings may be addressed to Don Pearson, Mail Code DM4, L. B. J.
Space Center, Houston, Texas 77058, Telephone (713) 483-8052.
Lift off Time : 1993/098/05:28:59.950
Lift off Date : 04/08/93
Vector Time (GMT) : 103/16:58:59.950
Vector Time (MET) : 005/11:30:00.000
Orbit Count : 88
Weight : 221270.0 LBS
Drag Coefficient : 2.00
Drag Area : 5000.0 SQ FT
M50 Elements Keplerian Elements
----------------------- --------------------------
X = 4769886.8 FT A = 3600.7239 NM
Y = -14104573.4 FT E = 0.0006550
Z = 16034817.8 FT I (M50) = 57.10113 DEG
Xdot = 22767.280310 FT/S Wp (M50) = 16.17316 DEG
Ydot = -4129.428495 FT/S RAAN (M50) = 152.84509 DEG
Zdot = -10382.843003 FT/S / N (True) = 103.04561 DEG
Anomalies \ M (Mean) = 102.97248 DEG
Ha = 160.39550 NM
Hp = 156.61930 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
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:6_2_2_44_9.TXT
STS-56 TV SKED, REV G
***********************************************************************
NASA SELECT TV SCHEDULE
STS-56/ATLAS-II/SPARTAN-201
4/13/93
REV G
***********************************************************************
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 Galaxy 6, transponder 19, channel 19. The orbital
position is 99 degrees West Longitude, with a frequency of 4080 MHz.
Audio is 6.2 and 6.8 MHz. The programs will begin on launch day and
continue through landing, airing at 11pm 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.
* Denotes Change from previous revision
LAUNCH-Thursday, April 8, 1993 KSC 00/00:00 12:29 AM
----------------------- Tuesday, April 13 -----------------------------
FD 6
89 BLUE/RED (FD7) HANDOVER 05/13:45 02:14 PM
92 FD6 ACTIVITIES REPLAY JSC 05/18:31 07:00 PM
----------------------- Wednesday, April 14 ---------------------------
FD 7
97 RED/BLUE (FD7) HANDOVER 06/01:00 01:29 AM
99 * P/TV10 CREW CONFERENCE TDRW 06/03:40 04:09 AM
WITH KSC PARTICIPATION
T=20:00
102 MISSION UPDATE JSC 06/09:01 09:30 AM
103 CHANNEL ONE INTERVIEW TDRW 06/09:45 10:14 AM
T=15:00
104 WGN/CHICAGO MUSEUM TDRW 06/11:25 11:54 AM
OF SCIENCE & INDUSTRY INTERVIEW
T=15:00
106 BLUE/RED (FD8) HANDOVER 06/13:00 01:29 PM
104 MISSION STATUS BRIEFING JSC 06/13:31 02:00 PM
MSFC
108 FD7 ACTIVITIES REPLAY JSC 06/18:31 07:00 PM
----------------------- Thursday, April 15 ----------------------------
FD 8
114 RED/BLUE (FD8) HANDOVER 07/03:30 03:59 AM
118 MISSION UPDATE JSC 07/09:31 10:00 AM
120 MISSION STATUS BRIEFING JSC 07/13:31 02:00 PM
MSFC
123 BLUE/RED (FD9) HANDOVER 07/16:15 04:44 PM
124 FD8 ACTIVITIES REPLAY JSC 07/18:31 07:00 PM
------------------------ Friday, April 16 -----------------------------
FD 9
129 Ku BAND ANTENNA STOW 08/01:20 01:49 AM
(not televised)
131 DEORBIT BURN 08/05:05 05:34 AM
(not televised)
132 KSC LANDING KSC 08/06:04 06:33 AM
LANDING REPLAYS KSC TBD TBD
POST LANDING PRESS CONFERENCE KSC TBD TBD
***********************************************************************
DEFINITION OF TERMS
***********************************************************************
CDT: Central Daytight Time
FD: Flight Day
JSC: Johnson Space Center
KSC: Kennedy Space Center
MET: Mission Elapsed Time. The time which begins at the moment
of launch and is read: days/hours:minutes. Launch=00/00:00
OPS: Operations
P/TV: Photographic/Television activity
SPARTAN: Solar Wind Generation Experiment
STS: Space Transportation System
T=: Time equivalent; Used for duration of event.
TBD: To be determined.
TDRE,W: Tracking and Data Relay Satellite, East and West longitudes.
TIG: Terminal Initiation; on-orbit shuttle burn.
VTR: Videotape recorder.
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
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