Seeing Earth With All Our Eyes

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Presentation transcript:

Seeing Earth With All Our Eyes Steven Dutch University of Wisconsin-Green Bay

Climbing Newton’s Mountain

Important Orbits Low vs. High Inclination Almost all are Prograde Polar Orbits for global coverage Circular Orbits strongly preferred Constant altitude Constant speed Sun-Synchronous Geosynchronous

About Orbits You do not need to expend fuel to stay in orbit Satellites need attitude control fuel to correct for atmospheric drag, lunar and solar gravity, etc. May want thrusters to help maintain orbits Spin stabilization helps Once below 200 km, atmospheric braking leads to re-entry

The V-2

V-2: Air Force Museum

V-2 shrapnel

V-2 Components

Sputnik I October 4, 1957 S- (with) + put’ (path) + -nik (one who) = Sputnik Literally, one who follows the same path

From Sapwood to Sputnik An existing rocket, the SS-6, was used. The warhead section was removed A cluster of four more SS-6 engines was bolted around a central engine Very Dependable

Early Rockets, Kennedy Space Center

Early Rockets, Huntsville AL

Gemini, 1965

Sensor Technology Passive (senses only ambient signals) Active (emits signals) Imaging Non-Imaging Scanning (mechanical or electronic) Non-scanning

Landsat Sensors

Tornado Track and Bad Pixels

The Single Most Valuable Product of the Space Program

Crescent Earth

Himalayas from Space Shuttle

Volcano, Alaska

Fringing Reefs

Icebergs, Antarctica

A Noble Myth “In my life, I've seen the images from space of a blue-white-green world — there are no political lines drawn on this planet. Luis J. Rodriguez “The border between the United States and Mexico is an imaginary line. It cannot be seen from space” The Border Zone:A History of Trade between the United States and Mexico, Julia Albright; Age of Irony, Winter 2004

“You Can’t See Borders From Space”

Mexican Border

Mexican Border

Menominee County, WI

U.S.-Canadian Border

Landsat View of Green Bay

Landsat View of Green Bay

Landsat view of Washington D.C.

Radar Image of New York City

Spy Satellite Views of Soviet Aircraft Carrier

Spy Satellite View of Soviet Airfield

Sudan Chemical Plant

Afghan Terrorist Camp

World Trade Center, September 11, 2001

Pope John Paul II Funeral

Pope John Paul II Funeral

Barack Obama’s Inauguration

Barack Obama’s Inauguration

And Now For Something Completely Different….

Gulf Stream in Infrared

Ultraviolet View of Earth

The Ocean Floor From Space

Earth and Moon Together

Really Remote Sensing

An Eclipse of the Sun – By Earth