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"930426.DFC" (7551 bytes) was created on 04-26-93
26-Apr-93 Daily File Collection
These files were added or updated between 25-Apr-93 at 21:00:00 {Central}
and 26-Apr-93 at 21:09:59.
=--=--=START=--=--= NASA Spacelink File Name:6_2_2_43_12_2.TXT
STS-55 Spacelab D-2 Mission April 26, 1993
The space shuttle Columbia lifted off at 9:50:00 a.m. CST into partly cloudy
Florida skies. Mission Control Status Reports are generally issued
several hours after liftoff, and are usually updated on a 12 hour basis,
depending on mission events. We will be posting these updates as they are
released.
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:6_2_2_43_12_3.TXT
MISSION CONTROL CENTER STATUS #1
MISSION CONTROL CENTER
STS-55 Status Report #1
Monday, April 26, 1993, 5:30 p.m. CDT
Payload activities have started on board Columbia as the German Spacelab
mission gets underway following a flawless launch and smooth laboratory
activation.
Following the successful activation of the Spacelab module, Mission Specialist
Jerry Ross and Payload Specialist Ulrich Walter have initiated the Biolabor
experiments which study the effects of microgravity on a variety of biological
specimen including small frogs and fish. The Biolabor facility represents 16
of the 88 experiments that make up the D-2 payload.
Columbia was launched from the Kennedy Space Center today at 9:50 a.m. Central
and since that time has been functioning without any major systems anomalies.
Crew members, however, were required to switch to the backup orbiter
refrigerator/freezer when the primary unit began warming up early in the flight
because of a suspected blockage in that units freon system. Astronauts
switched to the backup unit which has been functioning as expected.
The freezer unit is needed to preserve the blood and urine samples for the life
sciences experiments as well as some of the biological samples from Biolabor.
Its normal operating temperature ranges between -21 and -23 degrees Centigrade.
The seven-member crew is divided into two teams for 24-hour payload operations
for STS-55. The Red Team consisting of Mission Specialists Charlie Precourt and
Bernard Harris and Payload Specialist Hans Schlegel began a six- hour sleep
period shortly after Columbia arrived on orbit. They will be awakened 7:20
p.m. Central and, after a short handover from the Blue Team, will begin their
first full day of payload operations. The Blue Team consisting of Commander
Steve Nagel, Pilot Tom Henricks, Ross and Walter will begin their sleep period
at 8:50 p.m. Central.
Before the Red Team began their sleep period, Mission Manager Hauk Dodeck spoke
to the crew from the German Operations Control Center and extended
congratulations from German Chancellor Helmut Kohl.
Columbia currently is circling the Earth once every 90 minutes in a 163 by 161
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_7.TXT
STS-55 Keplerian Elements/State Vector
SPACELINK NOTE: These are the predicted elements released by Gil Carman on
4/24/93. This afternoon (4/26/93) he told us that because we had an on-time
launch, these elements are correct to within 4 seconds. He expects to issue
updated elements on 4/25.
STS-55
1 00055U 93116.66861589 .00120200 00000-0 36300-3 0 79
2 00055 28.4697 268.5815 0003812 314.2100 45.8202 15.90487610 22
Satellite: STS-55
Catalog number: 00055
Epoch time: 93116.66861589 = (26 APR 93 16:02:48.41 UTC)
Element set: JSC-007
Inclination: 28.4697 deg
RA of node: 268.5815 deg Space Shuttle Flight STS-55
Eccentricity: .0003812 Prelaunch Keplerian Elements
Arg of perigee: 314.2100 deg Launch: 26 APR 93 14:50 UTC
Mean anomaly: 45.8202 deg
Mean motion: 15.90487610 rev/day G. L. Carman
Decay rate: 1.2020e-03 rev/day~2 NASA Johnson Space Center
Epoch rev: 2
STS-55
FLIGHT DAY 1 STATE VECTOR (PREDICTED)
ON ORBIT OPERATIONS
(Posted 04/22/93 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 predictied 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 : 1993/114/14:52:00.000
Lift off Date : 04/24/93
Vector Time (GMT) : 114/15:35:00.000
Vector Time (MET) : 000/00:43:00.000
Orbit Count : 1
Weight : 244237.0 LBS
Drag Coefficient : 2.00
Drag Area : 2750.0 SQ FT
M50 Elements Keplerian Elements
----------------------- --------------------------
X = -16316639.1 FT A = 3608.0505 NM
Y = 11463512.2 FT E = 0.000522
Z = -9082446.2 FT I (M50) = 28.21573 DEG
Xdot = -11959.988763 FT/S Wp (M50) = 258.26527 DEG
Ydot = -21597.692493 FT/S RAAN (M50) = 266.81945 DEG
Zdot = -5764.287807 FT/S / N (True) = 342.98133 DEG
Anomalies \ M (Mean) = 342.99882 DEG
Ha = 162.4037 NM
Hp = 160.0044 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_43_8.TXT
NOTE: This file is too large {22036 bytes} for inclusion in this collection.
The first line of the file:
STS-55 TV SKED REV
STS-55 TV SKED D
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:6_2_2_44_12_2.TXT
STS-56 ATLAS 2 Mission April 8, 1993
The space shuttle Discovery lifted off at 12:29 a.m. CDT into clear
Florida skies. Mission Control Status Reports are generally issued
several hours after liftoff, and are usually updated on a 12 hour basis,
depending on mission events. We will be posting these updates as they are
released.
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 {17716 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-=--=--=
=--=END OF COLLECTION---COLLECTED 6 FILES---COMPLETED 22:11:28=--=