Play Video
1
Mariner 8 hp outboard motor
Mariner 8 hp outboard motor
::2014/06/09::
Play Video
2
Mariner 8
Mariner 8
::2012/06/14::
Play Video
3
mariner yamaha 8 sniardwy
mariner yamaha 8 sniardwy
::2013/08/08::
Play Video
4
89 Mariner 8 hp
89 Mariner 8 hp
::2012/03/25::
Play Video
5
Rime Of The Ancient Mariner (8-Bit)
Rime Of The Ancient Mariner (8-Bit)
::2011/06/12::
Play Video
6
Iron Maiden - Rime of The Ancient Mariner 8-Bit (Werc85)
Iron Maiden - Rime of The Ancient Mariner 8-Bit (Werc85)
::2011/05/28::
Play Video
7
1542 aluminum Jon boat with Mariner 8 HP, short shaft, pull start
1542 aluminum Jon boat with Mariner 8 HP, short shaft, pull start
::2012/11/24::
Play Video
8
1989 mariner 8 hp longshaft
1989 mariner 8 hp longshaft
::2013/07/14::
Play Video
9
Diablo, Mariner 8hp
Diablo, Mariner 8hp
::2012/09/08::
Play Video
10
Mariner 8 - Quick walk around the Mariner Outboard
Mariner 8 - Quick walk around the Mariner Outboard
::2014/02/16::
Play Video
11
Sub-Mariner 1960
Sub-Mariner 1960's Cartoon - #8
::2011/10/22::
Play Video
12
Mariner 8 pk 2 takt langstaart
Mariner 8 pk 2 takt langstaart
::2014/06/18::
Play Video
13
Iron Maiden - 8. Rime of the Ancient Mariner (Flight 666) HD 720p
Iron Maiden - 8. Rime of the Ancient Mariner (Flight 666) HD 720p
::2012/06/28::
Play Video
14
8 Mariner
8 Mariner's Call
::2014/02/26::
Play Video
15
Фрегат 290+Nissan Mariner 8
Фрегат 290+Nissan Mariner 8
::2011/06/27::
Play Video
16
Mariner 8 HP outboard engine start and run test
Mariner 8 HP outboard engine start and run test
::2010/03/01::
Play Video
17
Mariner 8 HP Outboard 0001
Mariner 8 HP Outboard 0001
::2011/04/29::
Play Video
18
1962: Mariner 2 (NASA)
1962: Mariner 2 (NASA)
::2008/04/18::
Play Video
19
Argus com um Mariner 8 hp
Argus com um Mariner 8 hp
::2011/03/22::
Play Video
20
Mariner 8
Mariner 8
::2014/06/03::
Play Video
21
Mariner
Mariner's Revenge Song (Lyrics!) -The Decemberists
::2009/10/04::
Play Video
22
Outboard engine mariner 8 hp 2 stroke long shaft
Outboard engine mariner 8 hp 2 stroke long shaft
::2013/10/09::
Play Video
23
mariner 8
mariner 8
::2013/04/14::
Play Video
24
Mariner 8 pk 2 takt langstaart
Mariner 8 pk 2 takt langstaart
::2014/06/16::
Play Video
25
mariner 8 hp GENTILE
mariner 8 hp GENTILE
::2012/12/24::
Play Video
26
Mariner 8
Mariner 8
::2014/11/09::
Play Video
27
Mariner 8 Hp
Mariner 8 Hp
::2012/07/11::
Play Video
28
MARINER 8
MARINER 8
::2014/05/07::
Play Video
29
Mariner 8
Mariner 8
::2012/06/07::
Play Video
30
VIU Mariner Minute - September 8, 2014 - Soccer Week #2
VIU Mariner Minute - September 8, 2014 - Soccer Week #2
::2014/09/08::
Play Video
31
Iron Maiden - Rime Of The Ancient Mariner (8-bit cover)
Iron Maiden - Rime Of The Ancient Mariner (8-bit cover)
::2013/06/06::
Play Video
32
Mariner 8 - Increasing the revs a little, sounds nice and crisp.
Mariner 8 - Increasing the revs a little, sounds nice and crisp.
::2014/02/16::
Play Video
33
Prodeco Mariner 7 Electric Bike Review
Prodeco Mariner 7 Electric Bike Review
::2013/10/08::
Play Video
34
mariner 8 hp & waveline3.4.AVI
mariner 8 hp & waveline3.4.AVI
::2011/09/24::
Play Video
35
Usher "Trading Places" Baltimore 1st Mariner Arena OMG TOUR 12/8/10
Usher "Trading Places" Baltimore 1st Mariner Arena OMG TOUR 12/8/10
::2010/12/12::
Play Video
36
Mariner 8 - Water tell tale, Reverse and Forward
Mariner 8 - Water tell tale, Reverse and Forward
::2014/02/16::
Play Video
37
Rime of the Ancient Mariner 8-bit Cover
Rime of the Ancient Mariner 8-bit Cover
::2013/06/25::
Play Video
38
8: KSP Historical Progression - MARINER 2/KERBINER 1 (Part2)
8: KSP Historical Progression - MARINER 2/KERBINER 1 (Part2)
::2014/06/15::
Play Video
39
Mariner 8 - Start up, stop on the button, start up.
Mariner 8 - Start up, stop on the button, start up.
::2014/02/16::
Play Video
40
Pro Mariner ProSport 8 Generation 3 Charger 43008
Pro Mariner ProSport 8 Generation 3 Charger 43008
::2014/09/22::
Play Video
41
Pharisees "The latter half of
Pharisees "The latter half of 'Monsteuros" Live @ the Mariner 8-11-12
::2012/08/14::
Play Video
42
Mariner Outboard 8Hp
Mariner Outboard 8Hp
::2013/06/02::
Play Video
43
Iron Maiden -  Rime Of The Ancient Mariner - 8/16
Iron Maiden - Rime Of The Ancient Mariner - 8/16
::2008/03/07::
Play Video
44
Iron Maiden-8.Rime Of The Ancient Mariner-Pt. 2 (Twickenham 2008)
Iron Maiden-8.Rime Of The Ancient Mariner-Pt. 2 (Twickenham 2008)
::2008/08/28::
Play Video
45
Dwayne (Sub-Mariner) 8 Johnson
Dwayne (Sub-Mariner) 8 Johnson
::2010/02/12::
Play Video
46
Iron Maiden-8.Rime Of The Ancient Mariner-Pt.1 (MSG,New York 2008)
Iron Maiden-8.Rime Of The Ancient Mariner-Pt.1 (MSG,New York 2008)
::2008/09/08::
Play Video
47
Iron Maiden-8.Rime Of The Ancient Mariner-Pt.1 (Twickenham 2008)
Iron Maiden-8.Rime Of The Ancient Mariner-Pt.1 (Twickenham 2008)
::2008/08/28::
Play Video
48
Honwave T35 AE mit 8 PS Mercury Mariner 2-Takt
Honwave T35 AE mit 8 PS Mercury Mariner 2-Takt
::2013/06/13::
Play Video
49
Iron Maiden-8.Rime Of The Ancient Mariner(Gothenburg 1986)-1/2
Iron Maiden-8.Rime Of The Ancient Mariner(Gothenburg 1986)-1/2
::2008/06/26::
Play Video
50
The Decemberists
The Decemberists' "The Mariner's Revenge Song"
::2007/08/28::
NEXT >>
RESULTS [51 .. 101]
From Wikipedia, the free encyclopedia
Jump to: navigation, search
Mariner 8
Mariner09.jpg
The Mariner 9 spacecraft, identical to Mariner 8
Mission type Mars orbiter
Operator NASA/JPL
Mission duration Failed to orbit
Spacecraft properties
Manufacturer Jet Propulsion Laboratory
Launch mass 997.9 kilograms (2,200 lb)
Dry mass 558.8 kilograms (1,232 lb)
Power 500 watts
Start of mission
Launch date May 9, 1971, 01:11:02 (1971-05-09UTC01:11:02Z) UTC
Rocket Atlas SLV-3C Centaur-D
Launch site Cape Canaveral LC-36A
Orbital parameters
Reference system Areocentric
Epoch Planned
Launch of Mariner 8

Mariner-H (Mariner Mars '71), also commonly known as Mariner 8, was (along with Mariner 9) part of the Mariner Mars '71 project. It was intended to go into Mars orbit and return images and data, but a launch vehicle failure prevented Mariner 8 from even achieving an Earth orbit and the spacecraft reentered into the Atlantic Ocean shortly after launch.[1]

Mission[edit]

Mariner 8 was launched on an Atlas-Centaur SLV-3C booster (AC-24). The main Centaur engine was ignited 265 seconds after launch, but the upper stage began to oscillate in pitch and tumbled out of control. The Centaur stage shut down 365 seconds after launch due to starvation caused by the tumbling. The Centaur and spacecraft payload separated and re-entered the Earth's atmosphere approximately 1500 km downrange and fell into the Atlantic Ocean about 560 km north of Puerto Rico.

Mariner Mars 71 Project[edit]

The Mariner Mars 71 project consisted of two spacecraft (Mariners H and I), each of which would be inserted into a Martian orbit, and each of which would perform a separate but complementary mission. Either spacecraft could perform either of the two missions. The two spacecraft would have orbited the planet Mars a minimum of 90 days, during which time data would be gathered on the composition, density, pressure, and temperature of the atmosphere, and the composition, temperature, and topography of the surface. Approximately 70 percent of the planetary surface was to be covered, and temporal as well as spatial variations would be observed. Some of the objectives of the Mariner-H mission were successfully added to the Mariner-I (Mariner 9) mission profile.[1]

Total research, development, launch, and support costs for the Mariner series of spacecraft (Mariners 1 through 10) was approximately $554 million.[1]

Spacecraft and subsystems[edit]

Mariner 8 during solar arrays installation

The Mariner 8 spacecraft was built on an octagonal magnesium frame, 45.7 cm deep and 138.4 cm across a diagonal. Four solar panels, each 215 x 90 cm, extended out from the top of the frame. Each set of two solar panels spanned 6.89 meters from tip to tip. Also mounted on the top of the frame were two propulsion tanks, the maneuver engine, a 1.44 m long low gain antenna mast and a parabolic high gain antenna. A scan platform was mounted on the bottom of the frame, on which were attached the mutually bore-sighted science instruments (wide- and narrow-angle TV cameras, infrared radiometer, ultraviolet spectrometer, and infrared interferometer spectrometer). The overall height of the spacecraft was 2.28 m. The launch mass was 997.9 kg, of which 439.1 kg were expendables. The science instrumentation had a total mass of 63.1 kg. The electronics for communications and command and control were housed within the frame.

Spacecraft power was provided by a total of 14,742 solar cells which made up the 4 solar panels with a total area of 7.7 square meters area. The solar panels could produce 800 W at Earth and 500 W at Mars. Power was stored in a 20 ampere-hour nickel-cadmium battery. Propulsion was provided by a gimbaled engine capable of 1340 N thrust and up to 5 restarts. The propellant was monomethyl hydrazine and nitrogen tetroxide. Two sets of 6 attitude control nitrogen jets were mounted on the ends of the solar panels. Attitude knowledge was provided by a Sun sensor, a Canopus star tracker, gyroscopes, an inertial reference unit, and an accelerometer. Passive thermal control was achieved through the use of louvres on the eight sides of the frame and thermal blankets.

Spacecraft control was through the central computer and sequencer which had an onboard memory of 512 words. The command system was programmed with 86 direct commands, 4 quantitative commands, and 5 control commands. Data was stored on a digital reel-to-reel tape recorder. The 168 meter 8-track tape could store 180 million bits recorded at 132 kbit/s. Playback could be done at 16, 8, 4, 2, and 1 kbit/s using two tracks at a time. Telecommunications were via dual S-band 10 W/20 W transmitters and a single receiver through the high gain parabolic antenna, the medium gain horn antenna, or the low gain omnidirectional antenna.

See also[edit]

References[edit]

  1. ^ a b c Pyle, Rod (2012). Destination Mars. Prometheus Books. pp. 73–78. ISBN 978-1-61614-589-7. "Mariner 8 launched ... but failed early in flight and ended its mission by splashing into the Atlantic Ocean. ... [Mariner 9] was the first spacecraft to enter orbit around another world. ... [It] continues to orbit Mars to this day, sailing around the planet deaf and dumb in the cold darkness. ... [Mariners 1-10 were] a demonstration of what a bargain these early missions were. For a total cost of $554 millions, the inner solar system had been opened, and brilliantly." 

External links[edit]

Wikipedia content is licensed under the GFDL License
Powered by YouTube
LEGAL
  • Mashpedia © 2014