
I mean...if you have a Secret Space Station.....why would you allow a very, very puplic Space Shuttle to rendezvous with it????

Well lets step back in time a little BEFORE there was the ISS...
Now its true that the launches are public... but the missions are not always so... granted it is harder these days to 'keep the lid on' but they do
it in between filming... or do you really think they sleep that much?
Well lets talk a little about the SECRET Space Shuttle Missions... the ones that carried ONLY US Military personnel
I like this patch...
image source: http://www.thelivingmoon.com/45jack_files/04images/Space_Craft/dod_1.jpg
The first military Shuttle mission was launched from Pad 39A at 1500Z on 27 June 1982. Military space missions also accounted for part or all of 14
out of 37 Shuttle flights launched from the Cape between August 1984 and July 1992. While many details of those missions are not releasable, some
features of Shuttle payload ground processing operations and range support requirements can be summarized for what might be termed a "typical"
military space mission.

Regular space shuttles have on occasion carried out missions for the military. It is noteworthy that NASA and the DoD agreed on delivering
Discovery to Vandenberg AFB, first in May 1985 and then in September of that year. Discovery would have been dedicated for military and civilian
flights from Vandenbergs' SLC-6 launch complex. The schedule slipped until the Challenger Accident in January 1986. In the wake of Challenger, on
December 26, 1989 the Space Shuttle Program at Vandenberg was terminated by the USAF.
So Vandenburg has a shuttle capable launch complex... Hmmmm

Military Shuttle flights were conducted from Kennedy Space Center in Florida, the last dedicated mission being STS-53 in late 1992, deploying a
military SDS B-3 communication satellite. Some military payloads have been flown on regular civilian Shuttle missions afterwards.
DoD Mission Patch
This was worn on those "Secret" Missions
image source: http://www.thelivingmoon.com/45jack_files/04images/Space_Craft/dod_2.gif
STS-51C - January 24, 1985
First mission dedicated to Department of Defense. U.S. Air Force Inertial Upper Stage (IUS) booster deployed and met mission objectives. This
mission's accomplishments are classified due to the nature of the work done.
Also according to Aviation Week, the shuttle initially entered a 204 km x 519 km orbit at an inclination of 28.45 deg to the equator. It then
executed three OMS (orbital maneuvering system) burns, the last on orbit #4. The first burn is to circularize the orbit at 519 km.
STS-51C: Classified DoD Mission
Mission: Department of Defense
Space Shuttle: Discovery
Launch Pad: 39A
Launch Weight: 250,891 pounds
Launched: January 24, 1985 at 2:50:00 p.m. EST
Landing Site: Kennedy Space Center, Florida
Landing: January 27, 1985 at 4:23:23 p.m. EST
Landing Weight: Classified
Orbit Altitude: 220 nautical miles
Orbit Inclination: 28.5 degrees
Seems they don't want to tell us what they brought back down
STS-51J - October 7, 1985
First flight of Space Shuttle Atlantis. First Department of Defense Space Shuttle flight in which the
payload, orbital parameters and mission
objectives remain classified. An Air Force crew flew the highly successful mission. Landed at Edwards Air Force Base, CA at 1:00 PM EDT on October
7. Flight duration was four days, one hour and 45 minutes.
STS-27 - December 2, 1988
STS-27 was a space shuttle mission by NASA using the Space Shuttle Atlantis. It was the 27th shuttle mission, and the 3rd for Atlantis, 2nd after the
Challenger disaster. It carried a payload for the U.S. Department of Defense.
Mission: Department of Defense
Mission name: STS-27
Shuttle: Atlantis
Launch pad: 39-B
Launch Weight: Classified
Launch: December 2, 1988, 9:30:34 a.m. EST
Landing: December 6, 1988, 3:36:11 p.m. PST
Landing Weight: 190,956 pounds
Duration: 4 days, 9 hours, 5 minutes, 37 seconds
Orbit altitude: Classified
Orbit inclination: 57.0 degrees
STS-28 - August 8, 1989
STS-28 was the fourth shuttle mission dedicated to United States Department of Defense, and first flight of Columbia since mission STS-61-C. The
details of the mission are classified.
Orbit altitude: Classified (although based on distance traveled and number of orbits, this would be between 220 and 380 km)
Mission: Department of Defense
Space Shuttle: Columbia
Launch Pad: 39B
Launch Weight: Classified
Launched: August 8, 1989, 8:37:00 a.m. EDT
Landing Site: Edwards Air Force Base, Calif.
Landing: August 13, 1989, 6:37:08 a.m. PDT
Landing Weight: 190,956 pounds
Runway: 17
Rollout Distance: 6,015 feet
Rollout Time: 46 seconds
Revolution: 81
Mission Duration: 5 days, 1 hour, 0 minutes, 8 seconds
Returned to KSC: August 21, 1989
Orbit Altitude: Classified
Orbit Inclination: 57 degrees
Miles Traveled: 2.1 million
STS-33 - November 22, 1989
STS-33 was the fifth space shuttle mission for the Department of Defense. Due to the nature of this mission, specific details are classified. The
Space Shuttle Discovery lifted of from Pad A, Launch Complex 39, KSC, on 22 November 1989 at 7:23 p.m. EST.
Mission: Department of Defense
Space Shuttle: Discovery
Launch Pad: 39B
Launch Weight: Classified
Launched: November 22, 1989, 7:23:30 p.m. EST
Landing Site: Edwards Air Force Base, Calif.
Landing: November 27, 1989, 4:30:16 p.m. PST
Landing Weight: 194,282 pounds
Runway: 4
Rollout Distance: 7,764 feet
Rollout Time: 46 seconds
Revolution: 79
Mission Duration: 5 days, 0 hours, 6 minutes, 49 seconds
Returned to KSC: December 4, 1989
Orbit Altitude: 302 nautical miles
Orbit Inclination: 28.45 degrees
Miles Traveled: 2.1 million
Continued...