Ans:
R = 7200 km
e = 3.58
Time of Flight = (r3/µ)1/2(ϴ - esinϴ)
= 108137.793 s
= 30.0382
Problem 3 We have sent a probe from the Earth on a hyperbolic trajectory for an...
please hell
You may use the text Introduction to Space Flight and the Coordinate Systems handout. 1. (30) Consider a fast transfer from an inner circular orbit of radius n = 1x107m. to an outer circular orbit of radius r2-2x10 m. The trajectory has a departure elevation angle of 0 degrees (perigee) and crosses the outer orbit with a true anomaly v. (a) Find the time of flight from perigee (v 0) tov (b) Find the time of flight from...
3. In interplanetary exploration, elliptical transfer orbits, like the one shown from Earth to Mars, allow space probes to reach the intended destination using a minimum of fuel. (Such orbits are called Hohmann transfer orbits.) Note: Assume the orbits of Earth and Mars about the Sun are circular with radii 1.000 AU and 1.524 AU, respectively. Ignore any effects due to the rotation of the Earth a. Describe qualitatively the maneuvers required PM TE Sun for the probe upon entering...
A satellite in earth orbit has the altitude of its perigee at 400k and altitude of its apogee at 800 km. u_E = 398,600km^3/s^2, R_E = 6371 km a) Determine its orbital period b) Determine its eccentricity c) Determine the magnitude of its specific angular momentum d) Determine the radius r_pi/2 when the true anomaly theta = pi/2 rad. Sketch an elliptical orbit and show where the point is. e) Determine the orbital speed when the true anomaly theta =...
Problem 3: The Rosetta spacecraft landed a probe on the comet Churyumov-Gerasimenko. It has a mass of appeoximately 1 x 10 kg and has an average density of approximately 400 kg/m. It is far from spherical, but for this problem go ahead and assume it is spherical. Estimate the radius, the acceleration due to gravity at the surface and the escape velocity from its surface. (10 points) Problem 4: A GPS satellite has a mass of 1940 kg and is...
An artificial satellite circles the Earth in a circular orbit at a location where the acceleration due to gravity is 9.00 m/s^2. Determine the orbital period of the satellite. I_o, a satellite of Jupiter, has an orbital period of 1.77 days and an orbital radius of 4.22 times 10^5 km. From these data, determine the mass of Jupiter. A minimum-energy transfer orbit to an outer planet consists of putting a spacecraft on an elliptical trajectory with the departure planet corresponding...
question 4
Exercises 4 through 7, we are considering a rocket that ed to 300 km above the surface of the earth, 6.7 x 106 m from the center of the earth. At this point, the engines are cut off and the rocket enters orbit. The angle between and For u is denoted by ф. 4. What velocity must it have attained if it is to remain in a circular orbit at this height? What is the period of this...
Problem 1 a. The apogee and perigee altitude (distance from the surface of Earth) of the Chandra X-rays Observatory are 139,200 km and 9,620 km (final orbit after 4th burn, Aug 7, 1999). Estimate its orbital period (in hours). Hint: the mass of Chandra is much smaller than the mass of Earth. b. Communications and weather satellites are often placed in geosynchronous “parking” orbits above Earth. These are the orbits where satellites can remain fixed above a specific point on...
Earlier in the course we introduced the constant acceleration formulas (kinetic equations) vo,=at, x=xo +vot +1/2at2, ect, which are valid when the acceleration vector of mass m is constant. For which of the following two situations is the acceleration vector constant so that these formulas are valid? I.) A satellite of mass m in circular orbit of radius R around a planet of mass M. II.) A mass m is released from rest at a point in space 32,000 km...