vanguard 1 orbital parameters

60 Years Ago: Vanguard Fails to Reach Orbit

The Vanguard program eventually achieved success on March 17, placing Vanguard 1, essentially identical to its hapless predecessor, into orbit. Contributing to the IGY, Vanguard 1, the first solar-powered satellite, determined that the Earth is not a perfect sphere but is somewhat asymmetrical in what has been described as pear-shaped.

Vanguard 1

Vanguard 1. Credit: NASM. American technology satellite. An engineering test satellite. Based on orbital position data derived from its transmissions, the shape of the earth was refined. Status: Operational 1957. First …

Vanguard 1, First Solar-Powered Satellite, Still Flying at 50

Vanguard 1 celebrated its 50th birthday this year as both the first solar-powered satellite and the oldest artificial satellite still orbiting Earth. The satellite has traveled 196,990 revolutions ...

Vanguard 1: Earth''s Oldest Artificial Satellite That''s …

As America''s second satellite, it was launched into space on March 17, 1958. And though it only blasted off some six months after the Soviet''s Sputnik satellite, Vanguard 1 still remains in orbit — more than …

TECHNICAL NOTE

VANGUARD I SATELLITE STRUCTURE AND SEPARATION MECHANISM John T. Shea and Robert C. Baumann SUMMARY A reevaluation of the Vanguard …

Planetary Parameters — Orbital Mechanics & Astrodynamics

1.26713 × 108 km3/s2. 9.53510 × 10-4. Saturn. 5.68460 × 1026 kg. 3.79406 × 107 km3/s2. 2.85502 × 10-4. Uranus. 8.68192 × 1025 kg. 5.79456 × 106 km3/s2.

artificial satellite

Vanguard 1 became the first satellite to use solar panels as a power source in 1958, when it was launched into an orbit with the following parameters: 654 by …

NASA

Vanguard 1 (1958 Beta 2) was a small Earth-orbiting satellite designed to test the launch capabilities of a three-stage launch vehicle and the effects of the …

Orbital elements

Orbital elements are the parameters required to uniquely identify a specific orbit. In celestial mechanics these elements are considered in two-body systems using a Kepler orbit . There are many different ways to mathematically describe the same orbit, but certain schemes, each consisting of a set of six parameters, are commonly used in astronomy …

Vanguard TV-1

Vanguard TV-1, also called Vanguard Test Vehicle-One, was the second sub-orbital test flight of a Vanguard rocket as part of the Project Vanguard. Vanguard TV-1 followed the successful launch of Vanguard TV-0 a one-stage rocket launched in December 1956. Project Vanguard was a program managed by the United States Naval Research …

Vanguard 1

The dashed part of the orbit path shows where the satellite is in the earth''s shadow, Satellite predictions and other astronomical data customised for your location.

Planetary Orbital Parameters Explained: A Complete …

Min. orbital velocity (km/s) The lowest speed a celestial body reaches during its orbit around the parent object, usually in kilometers per second (km/s). Planets usually reach their lowest speed when they …

Vanguard Satellite, 1958

One of the Vanguard satellites is checked out at Cape Canaveral, Florida in 1958. Vanguard 1, the world''s first solar-powered satellite, launched on St. Patrick''s Day (March 17) 1958. It was designed to test the launch capabilities of a three-stage launch vehicle and the effects of the environment on a satellite and its systems in Earth orbit.

Explorer 3

Explorer 3 (Harvard designation 1958 Gamma) was an American artificial satellite launched into medium Earth orbit in 1958. It was the second successful launch in the Explorer program, and was nearly identical to the first U.S. satellite Explorer 1 in …

History of Sputnik. Explorer. Vanguard. 1957. 1958. First space launch. Artificial satellite.

The first American satellite Explorer I was put into orbit by the Juno-1, a variant of the Jupiter C modified for satellite launch. By the end of 1958, all three shown American rockets, Juno-1, Vanguard, and modified Atlas, launched satellites into Earth orbit. Figure courtesy of Mike Gruntman.

Vanguard 2

Vanguard SLV-5 →. Vanguard 2 (or Vanguard 2E before launch) is an Earth-orbiting satellite launched 17 February 1959 at 15:55:02 GMT, aboard a Vanguard SLV-4 rocket as part of the United States Navy''s Project Vanguard. [4] The satellite was designed to measure cloud cover distribution over the daylight portion of its orbit, for a period of 19 ...

VANGUARD 1

In this page you can track in real time all the satellites orbiting the Earth, with both 2D and 3D interactive representations, predict their passes, view their trajectory among stars on …

Vanguard 1 – the first Solar Powered Satellite | SciHi …

Vanguard 1 was placed into orbit on March 17, 1958. It is the fourth artificial satellite and the first spacecraft to use solar cells for power supply. Vanguard 1 was placed on an elliptical orbit with a lowest …

Vanguard 1 Satellite

Cleaned up and remastered footage of the testing, launch and orbit of Vanguard 1 (Vanguard TV-4), the second satellite launched by the US, in 1958. Topaz AI ...

Vanguard | Vanguard 1

Vanguard 1 was placed into a 654 × 3969 km 134.2-minute orbit inclined at 34.25 degrees by the three-stage Vanguard launch vehicle. Original estimates had the orbit lasting for 2000 years, but it was discovered that solar radiation pressure and atmospheric drag during high levels of solar activity produced significant perturbations in the ...

Vanguard 1

OverviewMissionSpacecraft designAfter the missionSee alsoExternal links

On 17 March 1958, the three-stage launch vehicle placed Vanguard into a 654 km × 3,969 km (406 mi × 2,466 mi), 134.27-minute elliptical orbit inclined at 34.25°. Original estimates had the orbit lasting for 2,000 years, but it was discovered that solar radiation pressure and atmospheric drag during high levels of solar activity produced significant perturbations in the perigee height of the satellite, which caused a significant decrease in its expected lifetime to about 240 years. Van…

Vanguard 1, Oldest Manmade Satellite, Turns 60 This Weekend

Vanguard 1''s initial orbital parameters measured 2,466 miles (3,969 km) in apogee and 406 miles (654 km) in perigee, inclined 34.25 degrees to the equator, and circling the globe every 134.2 minutes. Coming on the heels of Sputniks 1 …

Introduction of the six basic parameters describing satellite orbits

These six parameters are called the Keplerian elements or orbital elements. Figure 1: Definition of the semi-major axis a; the semi-minor axis b; the true anomaly θ; and apoapsis and periapsis, with their respecitve radii r a and r p. Illustration by Andøya Space Education.

Vanguard TV-2

Vanguard rocket cutaway view, TV-2 had no fuel in stage 2 and 3. Vanguard TV-2, also called Vanguard Test Vehicle-Two, was the third suborbital test flight of a Vanguard rocket as part of Project Vanguard ccessful TV-2 followed the successful launch of Vanguard TV-0 a one-stage rocket launched in December 1956 and Vanguard TV-1 a two-stage …

Vanguard 1

Vanguard 1. El Vanguard 1 es el cuarto satélite puesto en órbita en la historia, el segundo por parte de Estados Unidos, y el satélite más antiguo que en la actualidad permanece en órbita ya que sus predecesores ( Sputnik 1, Sputnik 2 y Explorer 1) se destruyeron al reingresar en la atmósfera poco tiempo después de su lanzamiento. La ...

Vanguard 1

Vanguard 1 - Orbit Home | Info. | Passes | Close encounters View from above orbital plane View from above satellite Ground track The orbit data is extracted from the following two-line orbital elements, 1 00005U 58002B 24165.41099187 .00000884 00000-0 308. ...

Vanguard 1, Oldest Manmade Satellite, Turns 60 This Weekend

Vanguard 1''s initial orbital parameters measured 2,466 miles (3,969 km) in apogee and 406 miles (654 km) in perigee, inclined 34.25 degrees to the equator, and …

Vanguard I celebrates 50 years in space

The Vanguard I satellite celebrates its 50th birthday this year. Its launch on March 17, 1958 from Cape Canaveral, Florida, culminated the efforts of America''s first official space satellite ...

Orbital Mechanics

Orbit Parameters All satellites, planets, moons, and stars move in ellipses. In order to uniquely describe the ellipse a body is in, we must obtain 6 parameters. Let''s start with the first two. The first two parameters deal with the size and shape of the orbit. The semi-major axis (a) and the eccentricity (e) of an ellipse give the half-length of the longest axis and …

Vanguard 1: Earth''s oldest artificial satellite that''s still in orbit

The Vanguard spacecraft, the oldest satellite still in orbit, is seen here in Cape Canaveral, Florida, back in 1958. Today, there are more than 2,600 active satellites in orbit, as well as ...

Planetary Satellite Mean Elements

Accurate ephemerides should be obtained from our Horizons system. Mean orbital parameters are primarily useful in describing the general shape and orientation of a planetary satellite''s orbit. Mean elements, in this context, are simply the elements of a precessing ellipse which has been fit in a least squares sense to the numerically …