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Questions tagged [mariner]

The Mariner program was a program conducted by the American space agency NASA in conjunction with Jet Propulsion Laboratory (JPL) that launched a series of robotic interplanetary probes designed to investigate Mars, Venus, and Mercury from 1962 to 1973.

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Did Mariner 9 have a magnetometer?

While doing research for this question, I found conflicting info on Mariner 9. There are websites that say it included a magnetometer, such as here and here. But NASA's site doesn't list it and ...
Mqrius's user avatar
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Mariner 9 computing equipment

I am guessing the word CPU can't be used in reference to computers in 1971. So I am wondering what type of electronic equipment were put in place of a regular CPU ...
malat's user avatar
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Fjeldbo, Kliore, & Eshleman 1971 Fig. 22 planetary atmosphere index of refraction increasing with altitude; physics insight or convenient abstraction?

this answer to Is it possible for a spacecraft to communicate with Earth when a planet is in the way? suggesting that atmospheric refraction could be used to get at least some kind of signal around a ...
uhoh's user avatar
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Were Mariner 3 and 4 the only spacecraft to use "solar paddles" to stabilize attitude?

This one sentence nearly link-only answer to What is the principle behind Mariner 4's “Solar Pressure Vanes”? In what case(s) would they be effective? and the discussion below explain that Mariner 4 (...
uhoh's user avatar
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Can a satellite utilize gravity gradient stabilization, solar power, electrodynamic tethering and dynamic quadrupole momentum at once?

Have any analysis been done using 2 or more devises above to function as a satellite where 1 alone would not to maintain orbit without propellants? Will this system or one with a different ...
Muze's user avatar
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How was the radius of Venus measured so accurately (± 3 km) via radar in the mid 1960's, before Venera 4 and Mariner 5?

In several answers to the question When did planetary scientists realize Venus' surface pressure was almost 100x that on Earth? How did they find out? the known radius of Venus is mentioned. It was ...
uhoh's user avatar
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How to understand this complicated plot for Mariner 4's mid-course correction (to Mars)?

The 2015 DrewExMachina blog post Mariner 4 to Mars has an interesting looking plot! Below is the associated text, and the image caption. But I still do not understand all of the lines and labels in ...
uhoh's user avatar
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What was Mariner 10's lowest perihelion radius?

I've been searching the web for documentation of Mariner 10's trajectory, notably the perihelion radii, but so far have turned up nothing quantitative, just some rough trajectory diagrams. I've looked ...
Tom Spilker's user avatar
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What is the principle behind Mariner 4's "Solar Pressure Vanes"? In what case(s) would they be effective?

The image below, found in this answer shows four "Solar Pressure Vanes" on Mariner 4. I've never heard of such a thing. I can imagine that it might have been thought to help favor the spacecraft's ...
uhoh's user avatar
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What are the louver-like structures on the sides of the Mariner 4 probe?

The COSMOS Magazine article First mission to Mars: Mariner 4’s special place in history July 14, 1965, forever changed the way we see Mars. Tim Wallace looks back at one of NASA’s greatest triumphs ...
uhoh's user avatar
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Do you recognize these space artists who made this (possibly) first "paint-by-numbers" image of Mars?

Update! I've just run across the NASA Jet Propulsion Laboratory video Five Ways Mariner 4 Changed Mars Exploration and it mentions this "paint by numbers" representation of "the first digital image of ...
uhoh's user avatar
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How was the name of the Mariner Program chosen?

How was the name of the Mariner Program chosen? Why was it called the Mariner Program instead of the [something else] Program?
Malady's user avatar
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How did Mariner 2's ridged radiometer dish focus two microwave bands but diffuse IR?

edit: more photos of a model of Mariner 2 here at Historic Spacecraft's Mariner_2. The images and quote are from the book Space Probes and Planetary Exploration William R. Corliss (written under the ...
uhoh's user avatar
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Why is there a large wooden ball on Mariner 3's magnetometer?

Wood is good for certain niche space exploration applications, but the one below is not for spaceflight. According to the documentation for the archived photo: Several spacecraft were built for the ...
uhoh's user avatar
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Why Mariner 10 was instructed to turn off [transmitter]?

Ran out of fuel it too shallow answer. There should be something else like uncontrolled spinning and making waste radio noise. But this could be good experiment how long probe would survive so close ...
Erik's user avatar
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14 votes
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Do Mariner 4 hand rendered images still exist?

At the NASA web site is a story about how the first images returned from Mariner 4 were rendered by hand. Do these images still exist, for example in a museum?
Dan Piponi's user avatar