USA-212

Last updated

USA-212
Boeing X-37B inside payload fairing before launch.jpg
OTV-1 during encapsulation prior to maiden launch
Mission typeDemonstration
Operator Air Force Space Command
COSPAR ID 2010-015A [1]
SATCAT no. 36514
Mission duration224 days, 9 hours, 24 minutes
Spacecraft properties
Spacecraft type Boeing X-37B
Manufacturer Boeing
Launch mass5,400 kg (11,900 lb) [2]
PowerDeployable solar array, batteries [2]
Start of mission
Launch date22 April 2010, 23:52:00 (2010-04-22UTC23:52Z) UTC [3]
Rocket Atlas V 501 [2]
Launch site SLC-41, Cape Canaveral
Contractor United Launch Alliance
End of mission
Landing date3 December 2010, 09:16:00 (2010-12-03UTC09:17Z) UTC [4]
Landing site Vandenberg, Runway 12
Orbital parameters
Reference system Geocentric
Regime Low Earth
Semi-major axis 6,598 km (4,100 mi) [5]
Eccentricity 0.0006 [5]
Perigee altitude 279 km (173 mi) [5]
Apogee altitude 287 km (178 mi) [5]
Inclination 39.9979° [5]
Period 88.9 min [5]
Mean motion 15.97 [5]
Epoch 29 November 2010, 04:26:19 UTC [5]
OTV program
OTV-2  →
 

USA-212 [1] was the first flight of the Boeing X-37B Orbital Test Vehicle 1 (X-37B OTV-1), an American robotic vertical-takeoff, horizontal-landing (VTHL) spaceplane. It was launched aboard an Atlas V rocket from Cape Canaveral on 22 April 2010, and operated in low Earth orbit. Its designation is part of the USA series.

Contents

The spaceplane was operated by Air Force Space Command, which has not revealed the specific identity of the spaceship's payload for the mission. The Air Force has stated only that the spacecraft would "demonstrate various experiments and allow satellite sensors, subsystems, components, and associated technology to be transported into space and back." [6]

Launch

USA-212 was launched on an Atlas V 501 rocket, tail number AV-012, from Space Launch Complex 41 at the Cape Canaveral Air Force Station in Florida. [7] [8] The launch, which was conducted by United Launch Alliance, occurred at 23:52 UTC on 22 April 2010, placing the spacecraft into low Earth orbit for testing. [9]

The X-37B spacecraft was originally intended to be deployed from the payload bay of a NASA Space Shuttle, but following the Columbia accident, it was transferred to a Delta II 7920. It was subsequently transferred to the Atlas V following concerns over the X-37B's aerodynamic properties during launch. [2]

The launch was the first flight of the Atlas V 501 configuration, [10] and the first in four years to use a 5.4-meter (18 ft) payload fairing. [10] [11] Prior to the installation of the spacecraft, the Atlas rocket was moved to the launch pad and performed a wet dress rehearsal on 2 April 2010. [12] It was returned to the Vertical Integration Facility the next day for final assembly. [13] The X-37 arrived at the VIF on 8 April. On 9 April, a 24-hour delay was announced. It subsequently slipped a further 24 hours after the landing of Space Shuttle Discovery on Mission STS-131 was delayed, as the Eastern Range could not have been reconfigured quickly enough to accommodate both events on the same day. [13] After a series of delays, it was set for 19 April 2010. On 21 April, the Atlas was rolled back out to the launch pad for launch. [13] The launch window on 22 April opened at 23:52 UTC, and closed at 00:01 on 23 April.

Mission

Most of the mission parameters for the USA-212 flight have not been disclosed. [8] The vehicle is capable of being on-orbit for up to 270 days. The Air Force stated the mission time would depend on progress of the craft's experiments during orbit. [14] Mission control was handled by the 3rd Space Experimentation Squadron, 21st Space Wing, of the Air Force Space Command in Colorado Springs. [15]

Observations by amateur skywatchers

In May 2010, an amateur astronomer claimed to spot the spacecraft from his home in Toronto, Ontario, Canada. [16] Shortly after the initial observation, several more detailed observations were made by amateur skywatchers from around the world, who reported the spacecraft to have an almost circular 401 to 422 km (249 to 262 mi) low Earth orbit with an inclination of 40°. [17] The group believed in their calculations and observations with a high degree of confidence. [17] The spacecraft's ground track was observed to repeat every four days, which was considered indicative for a possible imaging reconnaissance mission profile. [17] [18]

For two weeks, starting on 29 July, the amateur skywatchers were unable to find the spacecraft in the locations they had predicted, leading them to believe it had suddenly changed its course. [19] During the mission, the vehicle was observed to change its orbit multiple times, with a total delta-v of the first four orbit changes amounting to 102 m/s (330 ft/s). A common characteristic of all the orbits was that the ground track nearly repeated every few days. [19] [20] By 12 November 2010, the orbit had been lowered to 281 by 292 km (175 by 181 mi) with the ground track now repeating every three days (47 orbits). [20]

Altitude and ground track resonance history

Based on data collected by amateur observers, the following orbital characteristics were calculated by amateur skywatcher Ted Molczan.

Time period Periapsis
(AMSL)		 Apoapsis
(AMSL)		Resonance
(orbits:days)
22 April 2010 – 9 August 2010 [21] 403 km (250 mi) [21] 420 km (260 mi) [21] 61:4 [18]
9 August 2010 – 6 October 2010 [22] 433 km (269 mi) [21] 444 km (276 mi) [21] 91:6
6 October 2010 – 1 November 2010 [4] 390 km (240 mi)395 km (245 mi)46:3
1 November 2010 – 12 November 2010 [4] 315 km (196 mi)328 km (204 mi)31:2
12 November 2010 – 3 December 2010281 km (175 mi)292 km (181 mi)47:3

Landing

Infrared view of OTV1 after landing OTV1 landing IR 20101203.png
Infrared view of OTV1 after landing

After completing its mission, the X-37B was deorbited, entered the atmosphere, and landed at Vandenberg Air Force Base on 3 December 2010. [23]

The X-37B is the second reusable spacecraft to perform an automated landing after returning from orbit, the first being the Soviet Buran spacecraft in 1988. [24]

Hypothetical mission components

As the mission of USA-212 and the X-37B program are classified, public commentary on the program is speculation. James Oberg speculated that the concurrent launch of Air Force's Hypersonic Technology Vehicle HTV-2 was related to the mission. Part of an X-37B's mission profile might involve a simulated enemy attack, which the X-37B should be able to detect and autonomously counteract. [25] HTV-2 was launched at 23:00 UTC on 22 April 2010, i.e., 52 minutes ahead of X-37B, from Vandenberg Air Force Base in California, [26] on a suborbital trajectory supposed to last less than 25 min. [27] The mission failed and was aborted nine minutes after launch. [28] [29]

William Scott, coauthor of the techno-novel Counterspace: The Next Hours of World War III and former Rocky Mountain Bureau Chief for Aviation Week & Space Technology magazine believes that with X-37B, the Air Force might test weapon delivery from a space plane in low Earth orbit. He mentions Rods from God as a possible scenario. [30] This hypothesis aligns with speculation that the launch of USA-212 marks the beginning of military operations in space. [31]

See also

Related Research Articles

Human spaceflight programs have been conducted, started, or planned by multiple countries and companies. The age of manned rocket flight was initiated by Fritz von Opel who piloted the world's first rocket-propelled flight on 30 September 1929. All space flights depend on rocket technology; von Opel was the co-designer and financier of the visionary project. Until the 21st century, human spaceflight programs were sponsored exclusively by governments, through either the military or civilian space agencies. With the launch of the privately funded SpaceShipOne in 2004, a new category of human spaceflight programs – commercial human spaceflight – arrived. By the end of 2022, three countries and one private company (SpaceX) had successfully launched humans to Earth orbit, and two private companies had launched humans on a suborbital trajectory.

<span class="mw-page-title-main">Cape Canaveral Space Force Station</span> Military rocket launch site in Florida

Cape Canaveral Space Force Station (CCSFS) is an installation of the United States Space Force's Space Launch Delta 45, located on Cape Canaveral in Brevard County, Florida.

<span class="mw-page-title-main">Spaceplane</span> Spacecraft capable of aerodynamic flight in atmosphere

A spaceplane is a vehicle that can fly and glide like an aircraft in Earth's atmosphere and maneuver like a spacecraft in outer space. To do so, spaceplanes must incorporate features of both aircraft and spacecraft. Orbital spaceplanes tend to be more similar to conventional spacecraft, while sub-orbital spaceplanes tend to be more similar to fixed-wing aircraft. All spaceplanes to date have been rocket-powered for takeoff and climb, but have then landed as unpowered gliders.

<span class="mw-page-title-main">Boeing X-20 Dyna-Soar</span> Research spaceplane by Boeing

The Boeing X-20 Dyna-Soar was a United States Air Force (USAF) program to develop a spaceplane that could be used for a variety of military missions, including aerial reconnaissance, bombing, space rescue, satellite maintenance, and as a space interceptor to sabotage enemy satellites. The program ran from October 24, 1957, to December 10, 1963, cost US$660 million, and was cancelled just after spacecraft construction had begun.

<span class="mw-page-title-main">Boeing X-37</span> Reusable robotic spaceplane

The Boeing X-37, also known as the Orbital Test Vehicle (OTV), is a reusable robotic spacecraft. It is boosted into space by a launch vehicle, then re-enters Earth's atmosphere and lands as a spaceplane. The X-37 is operated by the Department of the Air Force Rapid Capabilities Office, in collaboration with United States Space Force, for orbital spaceflight missions intended to demonstrate reusable space technologies. It is a 120-percent-scaled derivative of the earlier Boeing X-40. The X-37 began as a NASA project in 1999, before being transferred to the United States Department of Defense in 2004. Until 2019, the program was managed by Air Force Space Command.

<span class="mw-page-title-main">Atlas V</span> Expendable launch system

Atlas V is an expendable launch system and the fifth major version in the Atlas launch vehicle family. It was originally designed by Lockheed Martin, now being operated by United Launch Alliance (ULA), a joint venture between Lockheed Martin and Boeing. It is used for DoD, NASA, and Commercial payloads. It is America's longest-serving active rocket. After 87 launches, in August 2021 ULA announced that Atlas V would be retired, and all 29 remaining launches had been sold. As of 6 October 2023, 17 launches remain.

<span class="mw-page-title-main">FalconSAT</span> Program within the United States Air Force Academy for building small satellites

FalconSAT is the United States Air Force Academy's (USAFA) small satellite engineering program. Satellites are designed, built, tested, and operated by Academy cadets. The project is administered by the USAFA Space Systems Research Center under the direction of the Department of Astronautics. Most of the cadets who work on the project are pursuing a bachelor of science degree in astronautical engineering, although students from other disciplines join the project.

<span class="mw-page-title-main">United Launch Alliance</span> Joint venture of Lockheed Martin and Boeing

United Launch Alliance, LLC, commonly referred to as ULA, is an American aerospace manufacturer, defense contractor and launch service provider that manufactures and operates a number of rocket vehicles that launch spacecraft into orbits around Earth and other bodies in the Solar System.

<span class="mw-page-title-main">Wideband Global SATCOM</span> Defense satellite communications project

The Wideband Global SATCOM system (WGS) is a high capacity United States Space Force satellite communications system planned for use in partnership by the United States Department of Defense (DoD), Canadian Department of National Defence (DND) and the Australian Department of Defence. The system is composed of the Space Segment satellites, the Terminal Segment users and the Control Segment operators.

Shenlong is a Chinese reusable robotic spaceplane currently in development. Only a few pictures have appeared since it was revealed in late 2007.

<span class="mw-page-title-main">Space Shuttle retirement</span> End of NASAs Space Shuttle spacecraft system in 2011

The retirement of NASA's Space Shuttle fleet took place from March to July 2011. Discovery was the first of the three active Space Shuttles to be retired, completing its final mission on March 9, 2011; Endeavour did so on June 1. The final shuttle mission was completed with the landing of Atlantis on July 21, 2011, closing the 30-year Space Shuttle program.

<span class="mw-page-title-main">USA-226</span> First flight of the second Boeing X-37B

USA-226 was the first flight of the second Boeing X-37B, the Orbital Test Vehicle 2, an American unmanned robotic vertical-takeoff, horizontal-landing spaceplane. It was launched aboard an Atlas V rocket from Cape Canaveral on 5 March 2011, and landed at Vandenberg Air Force Base on 16 June 2012. It operated in low Earth orbit. Its mission designation is part of the USA series.

USA-227, known before launch as NRO Launch 27 (NROL-27), is an American communications satellite which was launched in 2011. It is operated by the United States National Reconnaissance Office.

<span class="mw-page-title-main">USA-240</span> Second flight of the first Boeing X-37B

USA-240, also referred to as Orbital Test Vehicle 3 (OTV-3), is the second flight of the first Boeing X-37B, an American unmanned robotic vertical-takeoff, horizontal-landing spaceplane. It was launched to low Earth orbit aboard an Atlas V rocket from Cape Canaveral on 11 December 2012. Its mission designation is part of the USA series.

<span class="mw-page-title-main">USA-261</span> Rocket flight

USA-261, also referred to as Orbital Test Vehicle 4 (OTV-4) or AFSPC-5, is the second flight of the second Boeing X-37B, an American unmanned vertical-takeoff, horizontal-landing spaceplane. It was launched to low Earth orbit aboard an Atlas V rocket from Cape Canaveral on May 20, 2015. Its mission designation is part of the USA series.

<span class="mw-page-title-main">USA-277</span>

USA-277, also referred to as Orbital Test Vehicle 5 (OTV-5), is the third flight of the second Boeing X-37B, an American unmanned vertical-takeoff, horizontal-landing spaceplane. It was launched to low Earth orbit aboard a Falcon 9 rocket from LC-39A on September 7, 2017. Its mission designation is part of the USA series.

The Chinese reusable experimental spacecraft is the first Chinese reusable spacecraft. It was first launched on 4 September 2020 at 07:30 UTC on a Long March 2F from the Jiuquan Satellite Launch Center, in the Gobi Desert of northwestern China. Xinhua News Agency said in a report, "After a period of in-orbit operation, the spacecraft will return to the scheduled landing site in China. It will test reusable technologies during its flight, providing technological support for the peaceful use of space".

<span class="mw-page-title-main">USA-299</span> Third flight of the first X-37B

USA-299, also referred to as USSF-7 and Orbital Test Vehicle 6 (OTV-6), is the third flight of the first Boeing X-37B, an American unmanned vertical-takeoff, horizontal-landing spaceplane. It was launched to low Earth orbit aboard an Atlas V launch vehicle from SLC-41 on 17 May 2020. Its mission designation is part of the USA series.

<span class="mw-page-title-main">USSF-52</span> USA Classified X-37B spaceplane mission 7

United States Space Force-52 (USSF-52), also referred to as Orbital Test Vehicle 7 (OTV-7) will be the fourth flight of the second Boeing X-37B, an American unmanned vertical-takeoff, horizontal-landing spaceplane. It will be launched to low Earth orbit aboard a Falcon Heavy rocket from LC-39A NET December 12, 2023.

References

  1. 1 2 "X-37B - Satellite Information". Heavens Above. Retrieved 10 July 2013.
  2. 1 2 3 4 Krebs, Gunter D. "X-37B OTV 1, 2, 3". Gunter's Space Page. Retrieved 10 July 2013.
  3. ↑ "OTV 1: Launch information". National Space Science Data Center. NASA. Retrieved 10 July 2013.
  4. 1 2 3 Clark, Stephen (30 November 2010). "Secret mini-shuttle due for landing as soon as Friday". Spaceflight Now. Retrieved 5 December 2010.
  5. 1 2 3 4 5 6 7 8 "X-37B - Orbit". Heavens Above. 29 November 2010. Retrieved 10 July 2013.
  6. ↑ Lubold, Gordon (20 April 2010). "Air Force To Launch X-37 Space Plane: Precursor To War in Orbit?". The Christian Science Monitor . Retrieved 23 April 2010.
  7. ↑ Leonard, David (22 October 2009). "Air Force's Secretive Space Plane Nears Maiden Voyage". Space.com.
  8. 1 2 Clark, Stephen (25 February 2010). "Air Force X-37B spaceplane arrives in Florida for launch". Spaceflight Now. Retrieved 3 March 2010.
  9. ↑ Clark, Stephen (22 April 2010). "Atlas rocket delivers Air Force spaceplane to orbit". Spaceflight Now. Retrieved 23 April 2010.
  10. 1 2 "Air Force officials launch Atlas V carrying X-37B Orbital Test Vehicle". AF.mil. U.S. Air Force. 23 April 2010. Archived from the original on 27 May 2012. Retrieved 23 April 2010.
  11. ↑ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 23 April 2010.
  12. ↑ Clark, Stephen (2 April 2010). "Air Force spaceplane is an odd bird with a twisted past". Spaceflight Now. Retrieved 23 April 2010.
  13. 1 2 3 Ray, Justin (23 April 2010). "Mission Status Center (OTV-1)". Spaceflight Now. Retrieved 23 April 2010.
  14. ↑ Klotz, Irene (24 April 2010). "U.S. Air Force X-37B Launched". Aviation Week .
  15. ↑ "Air Force Bloggers Roundtable: Air Force set to launch first X-37B Orbital Test Vehicle". DODlive.mil. U.S. Department of Defense. 20 April 2010. Archived from the original on 24 April 2010. Retrieved 23 April 2010.
  16. ↑ "Amateur astronomers unravel X37-B orbit, say likely use for deploying spy satellites". News.com.au. 24 May 2010. Archived from the original on 27 May 2010. Retrieved 5 December 2010.
  17. 1 2 3 David, Leonard (22 May 2010). "Secret X-37B spaceplane spotted by amateur skywatchers". Space.com.
  18. 1 2 Broad, William J. (21 May 2010). "Surveillance Is Suspected as Spacecraft's Main Role". The New York Times . Retrieved 23 May 2010.
  19. 1 2 Farquhar, Peter (25 August 2010). "US military's top secret X-37B shuttle 'disappears' for two weeks, changes orbit". News.com.au. Archived from the original on 28 August 2010. Retrieved 27 August 2010.
  20. 1 2 Molczan, Ted (25 November 2010). "Updated X-37B OTV 1-1 elements". SatObs.org. Retrieved 25 November 2010.
  21. 1 2 3 4 5 David, Leonard (24 August 2010). "Secret X-37B space plane has changed orbit". NBC News. Retrieved 5 December 2010.
  22. ↑ Wethington, Nicholos (11 October 2010). "'Secret' X-37B Space Plane Disappears Again". Universe Today. Retrieved 5 December 2010.
  23. ↑ Clark, Stephen (3 December 2010). "Home again: U.S. military space plane returns to Earth". Spaceflight Now.
  24. ↑ Chertok, Boris E. (2005). Siddiqi, Asif A. (ed.). Rockets and People. NASA History Series. Vol. 1. National Aeronautics and Space Administration. p. 179. SP-2005-4110.
  25. ↑ Oberg, James (31 March 2010). "U.S. Air Force Launches Secret Flying Twinkie: Military's new space plane tests unnamed powers". IEEE Spectrum. Retrieved 25 April 2010.
  26. ↑ Clark, Stephen (23 April 2010). "New Minotaur rocket launches on suborbital flight". Spaceflight Now. Retrieved 25 April 2010.
  27. ↑ Little, Geoffrey (1 September 2007). "Mach 20 or Bust". Air & Space .
  28. ↑ Jones, Johanna (23 April 2010). "Falcon HTV-2 Launch Tests Hypersonic Vehicle Flight Capabilities" (Press release). DARPA. Archived from the original on 4 August 2012. Retrieved 5 December 2010.
  29. ↑ "DARPA Concludes Review of Falcon HTV-2 Flight Anomaly". DARPA (Press release). 16 November 2010. Archived from the original on 4 August 2012. Retrieved 5 December 2010.
  30. ↑ David, Leonard (12 April 2010). "Air Force's Mystery X-37B Space Plane Fuels Speculation". Space.com.
  31. ↑ Starr, Barbara (23 April 2010). Mystery military space plane (Video). CNN.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.