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"930430.DFC" (13042 bytes) was created on 04-30-93
30-Apr-93 Daily File Collection
These files were added or updated between 29-Apr-93 at 21:00:00 {Central}
and 30-Apr-93 at 21:00:28.
=--=--=START=--=--= NASA Spacelink File Name:930430.SKD
Daily News/TV Sked 4/30/93
Daily News
Friday, April 30, 1993
Two Independence Square, Washington, D.C.
Audio Service: 202/358-3014
% STS-55 mission status;
% Technology Transfer Center works with SDIO to help industry;
% Public Service Recognition Week begins May 3.
As the STS-55 mission continues, crew members conduct experiments in the German
spacelab as scheduled. Some of this lab work includes monitoring the growth of
cress roots in weightlessness and ground controllers in Germany are still
experimenting with controlling the robotic arm, called Rotex, aboard Columbia.
More experiments are scheduled with the robotic arm throughout the mission.
Yesterday, Astronaut Nagel had the opportunity to make contact with the
cosmonauts on the Russian space station Mir. Nagel used the Shuttle Amateur
Radio Experiment equipment to talk to the cosmonauts for about a minute. The
two crews exchanged greetings and congratulations.
* * * * * * * * * * * * * * * *
Continuing NASA's effort to transfer technology in the commercial sector, the
National Technology Transfer Center(NTTC) in Wheeling, W. VA., will work with
the Strategic Defense Initiative Organization (SDIO) to help SDIO in the
operation of its Technology Applications Information System. NTTC will also
help identify items to be included in the technology applications database.
NTTC is funded by NASA and works in cooperation with other federal agencies to
assist in the transfer of SDIO-developed technology into the commercial sector.
* * * * * * * * * * * * * * * *
On May 3-9, Public Service recognition Week will get underway in cities
throughout the United States. The week is sponsored by Public Employees
Round-table and the President's Council on Management Improvement.
NASA headquarters will have an exhibit on Washington, D.C.'s national Mall. The
exhibit will show how NASA is working with the private sector in medicine,
safety, sports, archeology and home improvement. The exhibit also include a
video on how space technology has been used on Earth.
* * * * * * * * * * * * * * * *
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.
NASA TV will cover the STS-55 mission from
lift- off to landing
3:00 pm STS-55 Mission Update
9:00 pm Replay Flight Day Activities
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_18_5.TXT
NOTE: This file is too large {28463 bytes} for inclusion in this collection.
The first line of the file:
- Current Two-Line Element Sets #184 -
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:6_2_2_43_12_12.TXT
Mission Control Status #10
MISSION CONTROL CENTER
STS-55 Status Report #10
Thursday, April 29, 1993, 5 p.m. CDT
STS-55 Commander Steve Nagel and Pilot Tom Henricks are completing a procedure
to troubleshoot and possibly recover the primary orbiter refrigerator/freezer.
The crew will measure seven different parameters for the primary refrigeration
unit including the inner temperature, input current, evaporator temperature and
motor temperature. The entire 41-step procedure was expected to take about
three hours. The middeck refrigerator began warming up shortly after Columbia
arrived on orbit. The unit was then powered down and experiment samples were
stored in a back-up unit which continues to operate normally.
Today, Henricks also tested the Crew Telesupport Experiment which is a graphics
device that will allow shuttle astronauts to interact with ground controllers
instantaneously. Henricks and investigators were unable to establish the
communications link between the German Operations Control Center and Columbia,
but the equipment onboard performed very well.
Nagel also made contact with cosmonauts on the Russian space station Mir using
Shuttle Amateur Radio Experiment equipment. Nagel said the two crews talked
for about a minute and exchanged greetings and congratulations. During the
contact, Mir was about 51 n.m. above Columbia over Indonesia.
In the Spacelab module, Mission Specialist Jerry Ross and Payload Specialist
Ulrich Walter continued with their D-2 payload activitis. Both astronauts
completed respiratory tests and continued processing the materials science
investigations. Dr. Peter Sahm said the more than 200 German investigators
were "extraordinarily satisfied" with the experiments so far and reported that
a 20 mm galium arsenide crystal, the largest grown in space, has been grown
during the mission.
Columbia continues to operate well as it makes its 14th flight and is currently
circling the Earth in a 162 by 158 n.m. orbit.
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:6_2_2_43_12_13.TXT
Mission Control Status Report #11
MISSION CONTROL CENTER
STS-55 Status Report #11
Friday, April 30, 1993, 6 a.m. CDT
Columbia's Red Team science crew -- Mission Specialist Bernard Harris and
German Space Agency astronaut Hans Schlegel -- continued working on schedule in
the German Spacelab during the night while the spacecraft caretaker -- Mission
Specialist Charlie Precourt -- dealt with a few minor glitches.
Lab work included monitoring the growth of cress roots in weightlessness by
Harris to investigate how the roots, which have the ability to sense up and
down, grow in an environment where those directions don't exist. Ground
controllers in Germany also continued investigations into controlling the
robotic arm experiment onboard, called Rotex, driving the arm to grasp various
objects. More work remains scheduled with the arm.
Cameras in the cargo bay continued to photograph the Milky Way in ultraviolet
wide- angle images and to take stereo television of Earth to be used in making
highly detailed maps that can show areas in wavelengths from the visible to
infrared light.
What originally was thought to be a small cabin leak aboard Columbia, is now
believed to be normal, but flight controllers will continue to closely watch
the data to support their findings.
Precourt later successfully flushed Columbia's flash evaporator system, or FES,
with warm water to purge what was believed to be ice blocking its operation.
The FES, a cooling system on the spacecraft sometimes used to slowly dump
excess water overboard, has operated normally after the flush. The system had
turned off during a water dump Tuesday night.
Precourt also played a videotaped tour of the spacecraft's cabin given by
German astronaut Ulrich Walter for German controllers. Columbia remains in a
160 by 158 nautical mile orbit, and the Blue Team of crew members will awaken
at about 6:20 a.m. CDT.
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:6_2_2_43_12_14.TXT
Mission Control Status #12
MISSION CONTROL CENTER
STS-55 Status Report #12
Friday, April 30, 1993, 10 a.m. CDT
The STS-55 Blue Team took over this morning from the Red Team at about 7 a.m.
Central time. Jerry Ross and Ulrich Walter had sessions on the Anthrorack
respiratory monitoring experiments. These studies take advantage of
microgravity to learn more about lung function and the body's regulating
mechanisms under conditions not available to medical researchers on Earth.
Later today, a procedure will be sent to the crew for cleaning up some
particles found floating in the sample chamber of one of the materials
processing experiments. The experiment uses a sample encased in an aluminum
oxide ceramic mold. When Red Team payload crew member Hans Schlegel pulled the
sample from its case, he noticed some of the ceramic material had flaked off
and a few particles were floating in the chamber. Schlegel returned the sample
and case to the experiment container and closed the door to prevent the
particles escaping into the Spacelab environment. Flight controllers are
working out the final details of the clean-up procedure. Preliminary plans
call for one or two crew members to insert the portable vacuum cleaner hose
into the sample chamber opening and vacuum out the particles. Crew members
will wear goggles and a mask to avoid any particles causing irritation of the
eyes or respiratory system.
Further analysis on yesterday's indications of a small leak of cabin air showed
the actual cause of the increased oxygen flow to be a change in air temperature
and not an air leak. The change in oxygen flow was detected by flight
controllers yesterday over a period of about 12 hours, and the Red Team's
Charlie Precourt closed several valves in Columbia's air system and on some lab
workstations that had overboard vents.
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:6_2_2_43_7.TXT
STS-55 Keplerian Elements/State Vector
STS-55 element set GSFC-013 (orbit 65)
STS-55
1 22640U 93 27 A 93120.62020368 0.00044855 00000-0 12708-3 0 131
2 22640 28.4606 239.1107 0011268 287.1577 72.7801 15.91747408 652
Satellite: STS-55
Catalog number: 22640
Epoch time: 93120.62020368 (00 MAY 93 14:53:05.60 UTC)
Element set: GSFC-013
Inclination: 28.4606 deg
RA of node: 239.1107 deg Space Shuttle Flight STS-55
Eccentricity: 0.0011268 Keplerian Elements
Arg of perigee: 287.1577 deg
Mean anomaly: 72.7801 deg
Mean motion: 15.91747408 rev/day Semi-major Axis: 6675.5251 Km
Decay rate: 0.45E-03 rev/day*2 Apogee Alt: 304.66 Km
Epoch rev: 65 Perigee Alt: 289.62 Km
NOTE - This element set is based on NORAD element set # 013.
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-55 FLIGHT DAY 1 STATE VECTOR
ON ORBIT OPERATIONS
Posted 04/27/93 by Roger Simpson)
The following vector for the flight of STS-55 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 Columbia during on
orbit operations, after the OMS-2 maneuver. The vector assumes an on time
launch. Questions regarding these postings may be addressed to Roger Simpson,
Mail Code DM4, L. B. J. Space Center, Houston, Texas 77058.
Lift off Time : 1993/116/14:49:59.981
Lift off Date : 04/26/93
Vector Time (GMT) : 117/21:45:00.000
Vector Time (MET) : 001/06:55:00.020
Orbit Count : 21
Weight : 243363.0 LBS
Drag Coefficient : 2.00
Drag Area : 1208.5 SQ FT
M50 Elements Keplerian Elements
----------------------- --------------------------
X = -18128590.7 FT A = 3607.2724 NM
Y = 6791448.5 FT E = 0.000700
Z = -10245409.7 FT I (M50) = 28.20593 DEG
Xdot = -8020.695997 FT/S Wp (M50) = 256.33419 DEG
Ydot = -23996.633259 FT/S RAAN (M50) = 258.79283 DEG
Zdot = -1718.306504 FT/S / N (True) = 5.42741 DEG
Anomalies \ M (Mean) = 5.41982 DEG
Ha = 160.999 NM
Hp = 160.492 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-=--=--=
=--=END OF COLLECTION---COLLECTED 6 FILES---COMPLETED 21:17:13=--=