American chemical engineer mission specialist astronaut 1996-on. 369 cumulative days in space. First NASA astronaut to return to earth in a Russian spacecraft. 369 cumulative days in space. 3 spaceflights, 369.7 days in space. Flew to orbit on STS-113 (2002), STS-126, Soyuz TMA-03M.

The second Thor flight test missile launched on the Atlantic Missile Range (AMR) was successful until the Range Safety Officer (RSO) accidentally destroyed the missile. Douglas Thor IRBM (XSM-75) was launched at Cape Canaveral, Fla., destroyed by range safety officer. The missile was actually on course throughout its flight. The console wiring error led the range safety officer to believe it was headed inland rather than out to sea, so he hit the destruct button.

A conference was held at NASA Headquarters on the relationship between the Prospector and Apollo programs. Representatives of the Jet Propulsion Laboratory (JPL) and STG discussed the possible redirection of Prospector planning to support more directly the manned space program. The Prospector spacecraft was intended to soft-land about 2,500 pounds on the lunar surface with an accuracy of +/-1 kilometer anywhere on the visible side of the moon. An essential feature of Prospector was the development of an automatic roving vehicle weighing about 1500 pounds which would permit detailed reconnaissance of the lunar surface over a wide area. Additional Details: here....

Korolev's fantastic 'Orbitalniy Poyas' (OP -Orbital Belt) scheme anticipated Ronald Reagan's Strategic Defence Initiative by 25 years. Two to three large N-I launched military manned stations would control a constellation of strategic assets. Geosynchronous nuclear-powered satellites would provide secure communications. Piloted reconnaissance spacecraft would surprise the enemy, observing military preparations without warning. The orbital stations would provide continuous observations of the territory of the imperialist block.

NASA selected IBM, Federal Systems Division, to develop and build the instrument units (IU) for the Saturn IB and Saturn V launch vehicles. (IBM had been chosen by NASA in October 1963 to design and build the IU data adapters and digital guidance computers and to integrate and check out the IUs.) Under this new contract, expected to be worth over $175 million, IBM would supply the structure and the environmental control system. NASA would furnish the telemetry system and the stabilized platform (ST-124M) of the guidance system. MSFC would manage the contract.

A VPK Military-Industrial Commission resolution on the L1 program plan was issued and included the total accelerated program for build of 14 L1 and 6 7K-OK podsadka spacecraft. The schedule:
7K-L1:
1 unit 3rd quarter 66
4 units 4th quarter 66
3 units 1st quarter 67
3 units 2nd quarter 67
3 units 3rd quarter 67
7K-OK for delivery of crews to L1:
3 units 4th quarter 66
3 units 1st quarter 67. (Mishin Diaries 1-234)

150 people attend. The readiness of the spacecraft and launch vehicles are confirmed. The final responsibilities and schedule are approved. Everything is go. Afterwards there is a meeting with Mishin. He is mainly worried about two things that could cause them to scrub the launch of the second Soyuz: a failure of the Igla automatic docking system or the solar panels on Soyuz 1.

The third and last SV-5D Precision Recovery Including Maneuvering Entry (PRIME) flight vehicle, essentially a small maneuverahle reentry spacecraft, successfully performed cross-range maneuvers after being launched from Vandenberg on an Atlas booster. The series of three flights was so successful in demonstrating that a maneuverable spacecraft could survive reentry that the planned fourth flight test was cancelled. The full design 1145 km cross range was demonstrated, and the X-23A SV-5D lifting body vehicle was successfully snatched at 3700 m altitude, 8 km from the target point. With this success the rest of the project was cancelled, and the two remaining unflown X-22A's were sent to the USAF Museum at Wright Patterson Air Force Base.

Six of eight fans in the ECS have failed. There are only two back-ups, which are not enough for the 90-day active mission life planed. But it is decided the problem could actually be failed sensors, and in any case the first crew can easily repair the fans. At 17:00 the State Commission meets publicly (radio and television coverage) to approve the launch of Soyuz 10. Launch is set for 22 April at 03:30.

Anik I and Anik II also registered as United States objects. .The satellites, act as space repeaters capable of receiving transmissions from earth stations and retransmitting them to other earth stations in Canada. The antenna coverage of the satellite pr ovides the capability of serving virtually all of Canada. Anik I and II had weights of 1240.59 lb and 1246.48 lb. Each satellite has 12 RF channels each capable of transmitting a color television signal or up to 900 one-way voice channels. Positioned in geosynchronous orbit over the Americas at 109 deg W in 1973-1979; over the Americas at 106 deg W in 1979-1981; over the Americas at 114 deg W in 1981-1982 As of 26 August 2001 located at 0.59 deg E drifting at 1.690 deg W per day. As of 2007 Mar 9 located at 150.94E drifting at 1.684W degrees per day.

On 20 April 1979 LVI-4 VA (VA s/n 103 and s/n 008) was awaiting launch. The booster ignited, but then shut down on the pad. This triggered the launch escape system, which pulled the top capsule away from the booster. The parachute system failed and the capsule crashed to the ground. The lower capsule remained in the rocket. The top capsule was to have been manned, but the inability to demonstrate two consecutive failure-free launches of the Proton/TKS-VA combination made that (luckily) impossible.

On 19.04.1995 at 1912 UTC this spherical microsat (21 CM diameter, mass 20 KG) has been pushed into space from an airlock of Mir's base block. GFZ-1 moved off with a speed of 1.2 M/sec. The traffic in which the reports of data and images of the autonomous GFZ-1 could be monitored via Altair. The same operation had taken place some days before: On 17.04.1995 at 08Hrs 19Mins 50Secs the crew launched a container with garbage to be sure that the system would work well. This object is now in space under catalogue number 23557. GFZ-1 has been built by the German firm Kayser-Threde. The co-ordination of the observations of GFZ-1 will be done by the Geoforschungszentrum Potsdam. Abt 25 observatories all over the world will execute measurements by laser reflections. Stations are among others: London, Grasse (France), Potsdam, Easterisland, Graz (Austria) and even one in Kirgizie. The stations can 'catch' GFZ-1 with a beamwidth of 200 Meters. During the first pass London and Graz did not get reflections, but during the 2d pass Graz caught GFZ-1 and was able to pick the first geodetic and ballistic measurements. During the launch the Mir-crew acted independently.

Planning for the near future:

Some crucial operations had to be put back by the Russians (launch module Spektr, EVA-s, a.s.o.) and this forced the Americans to put back the launch of the Atlantis to the second half of June. Therefore the flight of Discovery has been put forward and will now begin at abt 8.06.1995.

Cargo Progress-M27: An antenna for radio-amateur purposes, delivered by Progress-M27, has been damaged due an improper packing. The crew showed this antenna via Altair and discussed this problem with the well known radio-amateur Sergey Samburov.

Chris v.d. Berg, NL-9165/A-UK3202

Repeated rumours appeared that a Chinese military satellite was launched or suffered a failure on this date. The story was first carried by Reuters in May 1997. In December 2000 it was again reported in a Chinese professional magazine that China launched its last recoverable satellite on April 20, 1997. The last official launch of the series was in October 1996.

If all goes as planned, this time next week the International Space Station will house visitors for the first time since the visit by the crew of STS-96 last year. All continues to go smoothly with preparations for the launch of Atlantis to start the STS-101 mission on Monday. Additional Details: here....

Gravity Probe B's mission was to confirm a prediction of Einstein's theory of relativity. The physics experiment, developed by Stanford University and Lockheed Martin, was to observe the magnitude 5 star IM Pegasi for over a year, attempting to measure the tiny shifts in the spacecraft gyroscopes' orientation caused by the Lense-Thirring gravitomagnetic (or `frame-dragging') effect. To accomplish this the spacecraft carried four gyroscopes kept at 1.8 deg Kelvin by a liquid helium dewar, laser retroreflectors and two GPS receivers for orbit determination, a drag compensation system, and a 14 cm aperture quartz telescope. The satellite was also to make an accurate measurement of the already-established gravitostatic warping of spacetime due to the Earth's mass.

The first Centaur upper stage burn placed the stack into a 167 km x 22442 km x 24.8 deg transfer orbit. After a second burn the Centaur released the satellite into a 6470 km x 36240 km x 23.8 deg orbit, from which it would use its own engine to achieve final geosynchronous orbit. As of 2007 Mar 10 located at 19.18E drifting at 0.022W degrees per day.

Surveillance satellite. Carried the LISS-4 camera, a 6-meter-resolution imager, which was to be used for both military reconnaissance and civilian remote sensing. It also carried the lower resolution LISS-3 (23 m resolution) and AWIFS (56 m resolution), and an AIS Automatic Identification System payload for Comdev of Canada for tracking ships at sea.

Docked at the Pirs module of the International Space Station on 22 April at 14:39 GMT. Undocked and after three weeks of independent flight involving Radar-Progress experiments using thruster burns to study the ionosphere, was deorbited over the Pacific on 20 August.

See Soyuz-MS 04. Soyuz MS-04 docked with the ISS Poisk module 6hr 4min after launch. Soyuz commander was Fyodor Yurchikin and flight engineer was Jack Fischer. This was the first two-person Soyuz mission in 14 years (Soyuz TMA-2 in Apr 2003), as Russia scaled back its ISS crew pending completion of the delayed Nauka module.

See Tianzhou 1 (TZ 1). China's first space station cargo resupply ship. Tianzhou-1 had a mass of 12910 kg. It flew on the second Chang Zheng 7 rocket, launched from Wenchang space centre on Hainan island. Tianzhou-1 docked with the Tiangong-2 space lab, then unoccupied. This mission was mainly for technology development; the Tianzhou frieghters were to be used operationally to resupply China's future large space station. Tianzhou 1 was inserted into a 198 x 372 km x 42.8 deg initial orbit, which was then raised to 311 x 369 km. The second stage ejected the usual four motor separation covers into 200 x 550 km orbits.