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13-Jul-93 Daily File Collection
These files were added or updated between 12-Jul-93 at 21:00:00 {Central}
and 13-Jul-93 at 21:01:11.
=--=--=START=--=--= NASA Spacelink File Name:930713.REL
7/13/93: TDRSS C-BAND AGREEMENT RESTRUCTURED
Dwayne C. Brown
Headquarters, Washington, D.C. July 13, 1993
RELEASE: 93-126
NASA and Columbia Communications Corp., Honolulu, have restructured the
agreement under which Columbia leases the commercial C-band capacity on board
two of NASA's Tracking and Data Relay Satellites (TDRS).
Under terms of the restructured agreement, Columbia will share with
NASA all revenues received from leasing capacity to third parties. NASA has
leased to Columbia twelve 36-Mhz C-band transponders on two geostationary TDRS
satellites, located at 41 and 174 degrees west longitude, for a period of 6
years. Columbia is the only separate satellite system offering competitive
telecommunications services over the Pacific and one of only two such separate
satellite systems over the Atlantic.
"Restructuring the agreement furthers NASA's policy to support
commercialization of space and encourages the growth of telecommunications
companies. This shared revenue plan should provide even better payments and
investment to NASA and the U.S. taxpayer," said NASA Associate Administrator
for Space Communications Charles Force.
"NASA has shown tremendous creativity in working out this agreement
with Columbia. Revenue sharing will help assure Columbia's success and will
greatly advance international satellite competition," said Clifford Laughton,
Columbia's Chairman.
Conceived in the 1970s, TDRS was designed to support a variety of
telecommunications capabilities. In late 1988, discussions were initiated to
study commercial use of TDRS's C-band without impact to government operations.
As a result of these discussions, an agreement was established and in early
1989, NASA solicited bids for lease of the C-band. Columbia submitted the high
bid and was awarded the agreement.
The TDRS system is a space-based network that provides communications,
tracking, telemetry, data acquisition and command services essential to the
Space Shuttle and low-Earth orbital spacecraft missions. The TDRS system is
managed by the Office of Space Communications, Washington, D.C.
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:930713.SHU
KSC SHUTTLE STATUS 7-13-93
KENNEDY SPACE CENTER SPACE SHUTTLE STATUS REPORT
Tuesday, July 13, 1993
KSC Contact: Bruce Buckingham
MISSION: STS-51 ACTS-TOS/ORFEUS-SPAS
VEHICLE: Discovery/OV-103 ORBITAL ALTITUDE: 184 miles
LOCATION: Pad 39-B INCLINATION: 28.45 degrees
LAUNCH DATE: Saturday, July 17, 1993 CREW SIZE: 5
LAUNCH WINDOW: 9:22 - 10:24 a.m. EDT
EXPECTED KSC LANDING DATE/TIME: July 26 or 27 7:21 a.m. EDT
EXPECTED MISSION DURATION: 8 days/22 hours + 1 day (an additional
day on orbit may be granted if orbiter cryogenics allow)
IN WORK TODAY:
* Aft confidence test
* Payload bay closeouts
* Launch countdown preparations
WORK SCHEDULED:
* Countdown begins 9:30 a.m. Wednesday July 14.
* Crew scheduled to arrive KSC 2:30 p.m. Wednesday
* Close payload bay doors for flight (Wednesday)
WORK COMPLETED:
* Aft engine compartment closeouts
* Purge external tank
NOTE: Forecasters indicate a 10 percent probability of weather
prohibiting launch with a slight chance of showers
being the primary concern.
MISSION: STS-58 Spacelab Life Sciences - 2
VEHICLE: Columbia/OV-102 ORBITAL ALTITUDE: 176 miles
LOCATION: OPF bay 2 INCLINATION: 39.00 degrees
MISSION DURATION: 14 days CREW SIZE: 7
TARGET LAUNCH PERIOD: Early/Mid September
LAUNCH TIME: Approximately 11:30 a.m. EDT
LAUNCH WINDOW: 2 hours, 30 minutes
IN WORK TODAY:
* Orbiter/external tank umbilical door functional checks
* Corrosion repairs on leading edge of wings and rudder speed brake
* Payload bay closeouts
* Solid rocket booster stacking operations in Vehicle Assembly Building high
bay 3
WORK SCHEDULED:
* Air frame structural inspections
* Aerosurface positioning and hydraulic operations
* Install spacelab in orbiter's payload bay
* Main engine installation
* Orbital maneuvering system electrical redundancy checks
WORK COMPLETED:
* Structural x-rays
* Potable water servicing
* Rudder speed brake corrosion checks
MISSION: STS-61 Hubble Space Telescope Repair Mission
VEHICLE: Endeavour/OV-105 ORBITAL ALTITUDE: 356 miles
LOCATION: OPF bay 1 INCLINATION: 28 degrees
MISSION DURATION: 11 days CREW SIZE: 7
TARGET LAUNCH PERIOD: Early December 1993
IN WORK TODAY:
* Payload bay deconfiguration
* Tunnel adapter removal
* Remove heatshields
* Auxiliary power unit lube oil deservicing
* KU-band checks
* TACAN system tests
* Main engine inspections
WORK SCHEDULED:
* Remove main engines
WORK COMPLETED:
* Waste containment system servicing
* Cycle payload bay door bulkhead latches
* Post flight hypergolic propellant deservicing operations
* Ammonia boiler checks
* Removed SPACEHAB and EURECA payloads
# # # #
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:930713.SKD
DAILY NEWS/TV SKED 7-13-93
Daily News
Tuesday, July 13, 1993
Two Independence Square; Washington, D.C.
Audio Service:202/358-3014
% STS-51 Processing underway for July 17 launch;
% NASA and Supra Medical Corp to develop new technology;
% HST Repair Mission Update.
Working towards a July 17 launch, technicians at the Kennedy Space Center are
preparing Space Shuttle Discovery for the upcoming mission. The countdown is
scheduled to begin tomorrow at 9:30 a.m. EDT. Workers have removed platforms
and installed the aft doors for flight.
The 5-member crew is scheduled to arrive at the Kennedy Space Center tomorrow
at 2:30 p.m. EDT. Discovery's STS-51 mission is scheduled to last 8 days and
land on July 26 at the Kennedy Space Center.
* * * * * * * * * * * * * * * *
NASA recently announced that along with Supra Medical Corp of Chadds Ford, Pa.,
they plan to develop advanced ultra-sound instrumentation which NASA will use
for non-destructive evaluation of a new class of woven composite materials.
Supra Medical will use the research to extend its high resolution capability
for the non-invasive examination of the breast.
Evelyna Dyson-Cantwell, President of Supra Medical said,We are developing
techniques and ultrasound instrumentation which will allow safe, low cost,
radiation-free, painless and verifiable diagnostic capabilities for detecting
cancerous breast tumors at very early stages of growth.
* * * * * * * * * * * * * * * *
Technicians at the Kennedy Space Center are working to prepare Space Shuttle
Endeavour for its upcoming mission in early December. Workers are servicing the
waste containment system and conducting KU-band checks. They are also
conducting TACAN system tests and doing main engine inspections. Technicians
are scheduled to remove the heatshields and main engines later this week.
Endeavour's STS-61 mission is targeted to last 11-days and and make repairs to
the Hubble Space Telescope.
* * * * * * * * * * * * * * * *
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.
Tuesday, July 13, 1993
noon NASA Today.
12:15 pm Aeronautics & Space Report.
12:30 pm Golden Days of Flight.
1:00 pm Telecommunications Conference: ACTS.
3:00 pm The Birth of NASA.
3:30 pm Around the World & On The Way.
Wednesday, July 14, 1993
noon NASA Today.
12:15 pm The Night Sky with Dr. Rich Terrile.
12:30 pm Pictures in the Mind.
1:00 pm NOVA: Russian Right Stuff.
2:00 pm Shaping Tomorrow.
2:30 pm Return to the Red Planet.
3:00 pm Gemini, the Twins.
3:30 pm Around the Moon.
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:930713A.REL
NOTE: This file is too large {15023 bytes} for inclusion in this collection.
The first line of the file:
7/13/93: STS-51 COUNTDOWN SCHEDULED TO BEGIN JULY 14
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:6_2_2_46_6.TXT
STS-51 TV SCHEDULE
***********************************************************************
NASA SELECT TV SCHEDULE
STS-51
7/12/93
***********************************************************************
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.
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.
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 11:01 pm Central Time.
***********************************************************************
-------------------------- WEDNESDAY, JULY 14 -------------------------
L-3 DAYS
SUBJECT SITE CDT
------- ---- ---
COUNTDOWN STATUS BRIEFING KSC 10:00 AM
---------------------------- THURSDAY, JULY 15 ------------------------
L-2 DAYS
COUNTDOWN STATUS BRIEFING KSC 7:00 AM
ACTS/TOS PROGRAM OVERVIEW REPLAY KSC 8:00 AM
ACTS EXPERIMENTERS REPLAY KSC 9:00 AM
---------------------------- FRIDAY, JULY 16 --------------------------
L-1 DAY
COUNTDOWN STATUS BRIEFING KSC 7:00 AM
ACTS/TOS PAYLOAD BRIEFING KSC 9:00 AM
ORFEUS PAYLOAD BRIEFING KSC 8:00 AM
CHROMEX BRIEFING KSC 9:45 AM
PRE-LAUNCH PRESS CONFERENCE KSC 10:00 AM
SECONDARY PAYLOADS BRIEFING KSC 12:00 PM
OFFICE OF ADVANCED CONCEPTS KSC 12:30 PM
AND TECHNOLOGY BRIEFING
--------------------------- SATURDAY, JULY 17 -------------------------
FD1
ORBIT SUBJECT SITE MET CDT
----- ------- ---- --- ---
NASA SELECT COVERAGE BEGINS KSC 03:30 AM
LAUNCH KSC 00/00:00 08:22 AM
NASA SELECT ORIGINATION JSC 00/00:04 08:26 AM
SWITCHED TO JSC
MECO 00/00:08 08:30 AM
1 NASA SELECT ORIGINATION KSC 00/00:13 08:35 AM
SWITCHED TO KSC
1 LAUNCH REPLAYS KSC 00/00:13 08:35 AM
(APPROX. 5 MIN. AFTER MECO)
T=30:00
1 NASA SELECT ORIGINATION JSC 00/00:43 09:05 AM
SWITCHED TO JSC
1 NASA SELECT ORIGINATION KSC 00/01:04 09:26 AM
SWITCHED TO KSC
1 POST LAUNCH PRESS CONFERENCE KSC 00/01:08 09:30 AM
2 NASA SELECT ORIGINATION JSC 00/02:08 10:30 AM
SWITCHED TO JSC
3 Ku BAND ANTENNA 00/02:30 10:52 AM
DEPLOY AND ACTIVATION
(not televised)
3 MISSION UPDATE JSC 00/02:38 11:00 AM
3 ACTS/TOS PRE-DEPLOY CHECKOUT TDRE 00/03:00 11:22 AM
T=15:00
3 RMS POWERUP/CHECKOUT TDRE 00/03:35 11:57 AM
T=20:00
4 RMS PAYLOAD BAY SURVEY TDRE 00/04:40 01:02 PM
T=15:00
4 NASA SELECT ORIGINATION KSC 00/05:15 01:37 PM
SWITCHED TO KSC
4 ENGINEERING LAUNCH REPLAYS KSC 00/05:15 01:37 PM
T=30:00
5 NASA SELECT ORIGINATION JSC 00/05:45 02:07 PM
SWITCHED TO JSC
5 ACTS/TOS RAISED TO TDRE 00/05:50 02:12 PM
DEPLOY POSITION
T=35:00
6 Ku BAND CONFIGURE TO RADAR MODE 00/07:15 03:37 PM
(not televised)
6 ACTS/TOS DEPLOY 00/07:58 04:20 PM
(not televised live)
7 Ku BAND CONFIGURE TO COMM MODE 00/08:50 05:12 PM
(not televised)
8 CREW SLEEP 00/11:00 07:22 PM
8 REPLAY OF FD1 ACTIVITIES 00/11:38 08:00 PM
----------------------------- SUNDAY, JULY 18 -------------------------
FD2
13 CREW WAKE UP 00/19:00 03:22 AM
15 SPAS GRAPPLE 00/22:00 06:22 AM
(not televised)
16 SPAS DEPLOY OPERATIONS TDRW/E 00/22:20 06:42 AM
T=25:00
16 SPAS DEPLOY OPERATIONS TDRW/E 00/23:20 07:42 AM
T=85:00
17 SPAS DOOR TEST TDRW 01/01:15 09:37 AM
T=15:00
18 SPAS RELEASE TDRE 01/01:45 10:07 AM
T=15:00
18 MISSION UPDATE JSC 01/02:38 11:00 AM
19 RICS MANUEVERS TDRE 01/03:35 11:57 AM
20 TV OPPORTUNITY TDRW/E 01/04:15 12:37 PM
T=50:00
20 MISSION STATUS/PAYLOAD JSC/KSC 01/04:38 01:00 PM
OPERATIONS BRIEFINGS
21 VTR DUMP OF SPAS TDRW 01/06:23 02:45 PM
DEPLOY OPERATIONS
T=19:00
21 MISSION UPDATE PM JSC 01/06:38 03:00 PM
(Includes Daily Video Highlights)
23 CREW SLEEP 01/10:00 06:22 PM
----------------------------- MONDAY, JULY 19 -------------------------
FD3
29 CREW WAKE UP 01/18:00 02:22 AM
32 P/TV05 MIDDECK ACTIVITIES TDRE/W 01/22:30 06:52 AM
T=17:00
32 TV OPPORTUNITY TDRW 01/23:05 07:27 AM
T=18:00
33 TV OPPORTUNITY TDRE 02/00:05 08:27 AM
T=15:00
34 MISSION UPDATE JSC 02/02:38 11:00 AM
35 INTERNATIONAL SPACE TDRE 02/03:48 12:10 PM
UNIVERSITY INTERVIEW
T=15:00
36 MISSION STATUS BRIEFING JSC 02/04:38 01:00 PM
37 MISSION UPDATE PM JSC 02/06:38 03:00 PM
(Includes Daily Video Highlights)
39 CREW SLEEP 02/09:00 05:22 PM
----------------------------- TUESDAY, JULY 20 ------------------------
FD4
44 CREW WAKE UP 02/17:00 01:22 AM
47 EMU CHECKOUT TDRW/E 02/21:00 05:22 AM
T=20:00
47 EMU CHECKOUT TDRW/E 02/22:00 06:22 AM
T=25:00
48 CBS "THIS MORNING" INTERVIEW TDRE 02/23:11 07:33 AM
T=15:00
49 MIDDECK EVA PREP TDRW 03/01:10 09:32 AM
T=10:00
50 MIDDECK EVA PREP TDRW 03/01:45 10:07 AM
T=20:00
50 P/TV05 MIDDECK ACTIVITIES TDRE 03/02:20 10:42 AM
T=20:00
50 MISSION UPDATE JSC 03/02:38 11:00 AM
51 MIDDECK EVA PREP TDRW 03/03:20 11:42 AM
T=20:00
52 MISSION STATUS BRIEFING JSC 03/04:38 01:00 PM
53 MISSION UPDATE PM JSC 03/06:38 03:00 PM
(Includes Daily Video Highlights)
54 CREW SLEEP 03/08:00 04:22 PM
----------------------------- WEDNESDAY, JULY 21 ----------------------
FD5
59 CREW WAKE UP 03/16:00 12:22 AM
62 EVA PREP TDRW 03/19:15 03:37 AM
T=65:00
62 EVA PREP TDRE 03/20:35 04:57 AM
T=20:00
62 AIRLOCK DEPRESS TDRW 03/20:55 05:17 AM
T=15:00
63 AIRLOCK EGRESS TDRE 03/21:10 05:32 AM
T=45:00
64 EVA - HIGH TORQUE, MASS HANDLING TDRW/E 03/22:10 06:32 AM
AND PFR EVALUATIONS
T=85:00
64 EVA TDRW/E 03/22:45 07:07 AM
T=80:00
66 EVA TDRW/E 04/01:20 09:42 AM
T=50:00
66 EVA - PAYLOAD BAY CLEANUP TDRE 04/00:53 09:15 AM
T=10:00
67 AIRLOCK INGRESS 04/03:15 11:37 AM
(MAY NOT BE TELEVISED)
68 MISSION STATUS BRIEFING JSC 04/04:38 01:00 PM
69 MISSION UPDATE JSC 04/06:38 03:00 PM
69 CREW SLEEP 04/07:00 03:22 PM
74 CREW WAKE UP 04/15:00 11:22 PM
----------------------------- THURSDAY, JULY 22 -----------------------
FD6
78 P/TV06 FLIGHT DECK ACTIVITIES TDRW 04/20:45 05:07 AM
T=50:00
79 WWWE CLEVELAND AND WBZ BOSTON 04/21:30 05:52 AM
RADIO INTERVIEWS
81 FOX TELEVISION INTERVIEW TDRW 05/01:23 09:45 AM
T=15:00
82 MISSION UPDATE JSC 05/02:38 11:00 AM
83 MISSION STATUS/PAYLOAD JSC/KSC 05/04:38 01:00 PM
OPERATIONS BRIEFING
85 MISSION UPDATE PM JSC 05/06:38 03:00 PM
(Includes Daily Video Highlights)
85 CREW SLEEP 05/06:40 03:02 PM
90 CREW WAKE UP 05/14:40 11:02 PM
----------------------------- FRIDAY, JULY 23 -------------------------
FD7
93 P/TV05 MIDDECK ACTIVITIES TDRW 05/19:05 03:27 AM
T=15:00
94 P/TV08 APE ACTIVITIES TDRE 05/19:40 04:02 AM
T=20:00
95 P/TV05 MIDDECK ACTIVITIES TDRW 05/21:55 06:17 AM
T=15:00
96 P/TV08 APE ACTIVITIES TDRW 05/23:50 08:12 AM
T=25:00
97 TV OPPORTUNITY TDRE 06/00:30 08:52 AM
T=17:00
97 P/TV06 FLIGHT DECK ACTIVITIES TDRE 06/01:15 09:37 AM
T=5:00
98 P/TV05 MIDDECK ACTIVITIES TDRW 06/01:30 09:52 AM
T=5:00
98 MISSION UPDATE JSC 06/02:38 11:00 AM
100 MISSION STATUS BRIEFING JSC/KSC 06/04:38 01:00 PM
101 MISSION UPDATE PM JSC 06/06:38 03:00 PM
(Includes Daily Video Highlights)
101 CREW SLEEP 06/06:20 02:42 PM
106 CREW WAKE UP 06/14:20 10:42 PM
----------------------------- SATURDAY, JULY 24 -----------------------
FD8
109 RMS POWERUP TDRW 06/19:10 03:32 AM
T=20:00
110 PAYLOAD BAY SURVEY TDRE 06/19:45 04:07 AM
T=15:00
112 SPAS GRAPPLE 06/23:55 08:17 AM
(not televised live)
113 RICS PHOTO SEQUENCE TDRE 07/00:35 08:57 AM
T=50:00
114 SPAS BERTH TDRE 07/02:10 10:32 AM
T=25:00
114 MISSION UPDATE JSC 07/02:38 11:00 AM
115 VTR DUMP OF SPAS RETRIEVAL TDRW 07/03:12 11:34 AM
T=20:00
115 MISSION STATUS/PAYLOAD JSC/KSC 07/04:38 01:00 PM
OPERATIONS BRIEFINGS
116 CREW SLEEP 07/06:00 02:22 PM
117 MISSION UPDATE PM JSC 07/06:38 03:00 PM
(Includes Daily Video Highlights)
112 CREW WAKE UP 07/14:00 10:22 PM
----------------------------- SUNDAY, JULY 25 -------------------------
FD9
124 PAYLOAD BAY SURVEY TDRE 07/16:40 01:02 AM
T=35:00
124 RMS POWERDOWN TDRW 07/17:40 02:02 AM
T=20:00
126 TV OPPORTUNITY TDRE 07/20:05 04:27 AM
127 P/TV08 APE ACTIVITIES TDRE 07/21:30 05:52 AM
127 P/TV09 CREW CONFERENCE TDRW 07/22:35 06:57 AM
T=20:00
130 MISSION UPDATE JSC 08/02:38 11:00 AM
130 Ku BAND STOW 08/02:55 11:17 AM
(not televised)
131 MISSION STATUS BRIEFING JSC 08/04:38 01:00 PM
132 CREW SLEEP 08/06:00 02:22 PM
133 MISSION UPDATE PM JSC 08/06:38 03:00 PM
(Includes Daily Video Highlights)
138 CREW WAKE UP 08/14:00 10:22 PM
----------------------------- MONDAY, JULY 26 -------------------------
FD10
142 DEORBIT BURN 08/20:59 05:21 AM
(not televised)
143 KSC LANDING KSC 08/21:59 06:21 AM
LANDING REPLAYS KSC TBD TBD
POST LANDING PRESS CONFERENCE KSC TBD TBD
***********************************************************************
DEFINITION OF TERMS
***********************************************************************
ACTS/TOS: ADVANCED COMMUNICATIONS TECHNOLOGY SATELLITE/TRANSFER ORBIT STAGE
APE: AURORAL PHOTOGRAPHY EXPERIMENT
CDT: CENTRAL DAYLIGHT TIME
FD: FLIGHT DAY
JSC: JOHNSON SPACE CENTER
KSC: KENNEDY SPACE CENTER
MECO: MAIN ENGINE CUT-OFF
MET: MISSION ELAPSED TIME. THE TIME WHICH BEGINS AT MOMENT OF
LAUNCH AND IS READ: DAYS/HOURS:MINUTES. LAUNCH=00/00:00
ORFEUS/SPAS: ORBITING RETRIEVABLE FAR AND EXTREME ULTRAVIOLET
SPECTROMETER/SHUTTLE PALLET SATELLITE
PFR: PORTABLE FOOT RESTRAINT
P/TV: PHOTOGRAPHIC/TELEVISION ACTIVITY
RICS: REMOTE IMAX CAMERA SYSTEM
RMS: REMOTE MANIPULATION SYSTEM
TBD: TO BE DETERMINED
TDRE,W: TRACKING AND DATA RELAY SATELLITE, EAST AND WEST LONGITUDE
VTR: VIDEOTAPE RECORDER
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:6_2_2_46_8.TXT
NOTE: This file is too large {15023 bytes} for inclusion in this collection.
The first line of the file:
7/13/93: STS-51 COUNTDOWN SCHEDULED TO BEGIN JULY 14
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=--=START=--=--= NASA Spacelink File Name:6_8_3_4_34.TXT
MAGELLAN STATUS 7/12/93
Magellan Status for July 12, 1993
1. The Magellan Transition Experiment continues to go well after 48 days and
440 orbits of aerobraking in Venus' atmosphere. The apoapsis has been reduced
below 3200 km from a starting point of 8460 km.
2. The orbit period has been reduced from 194 minutes to 124 minutes, so we
now perform 11.5 orbits per day.
3. This week Magellan is passing through a phase in which the local gravity
field changes, causing the periapsis drift to reverse from the downward trend
we have seen since the start of aerobraking to an upward drift.
4. It now appears that we will perform a R1/2 downS COTM10 on Thursday morning
in order to keep the orbit change on course for achieving a 102 minutes orbit
by July 27th.
5. On that date we begin the End Game which will place Magellan in the desired
orbit for collecting gravity data in the high latitude regions of Venus. The
End Game adjustments are designed to achieve an orbit which varies form 200 to
650 km from the planet's surface, with a period of 94 minutes.
6. All spacecraft systems are nominal. The solar panels still peak about 70
degrees C which translates to a High Grain Antenna maximum of 105 degrees C.
Propellant usage is now running between 10 and 20 grams per orbit, and there is
currently a 17 kg margin (enough propellant to maintain Magellan through
several Venus cycles).
Source:NASA Spacelink Modem:205-895-0028 Internet:192.149.89.61
=--=--=-END-=--=--=
=--=END OF COLLECTION---COLLECTED 7 FILES---COMPLETED 21:40:12=--=