Movement of Surveyor 3 spacecraft
نویسندگان
چکیده
منابع مشابه
IV. Spacecraft Changes PART A LUNAR DUST AND RADIATION DARKENING OF SURVEYOR 3 SURFACES
One of tile most conspicuous features noted by the astronauts during examination of Surveyor on the Moon and later during examination of the returned hardware in the Lunar Receiving Laboratory (LRL) was the change in color. The overall tan color was in sharp contrast to the stark white paint and shiny metallic surfaces of Surveyor before launch (and to that on the model used by the astronauts d...
متن کاملUplink Arraying Experiment with the Mars Global Surveyor Spacecraft
For the first time ever, a pair of 34-m antennas was employed to simultaneously transmit and combine 7.15-GHz (X-band) carriers to a spacecraft in deep space, yielding up to four times greater signal power than either antenna separately. Antenna arrays have the potential to synthesize the equivalent of a very large antenna aperture in a robust and cost-effective manner, by appropriately combini...
متن کاملTesting frame-dragging with the Mars Global Surveyor spacecraft in the gravitational field of Mars
In this letter we find evidence of the general relativistic gravitomagnetic Lense-Thirring effect by interpreting the time series of the RMS overlap differences of the out-of-plane part N of the orbit of the Martian polar orbiter Mars Global Surveyor (MGS) over a time span ∆P of about 5 years (14 November 1999-14 January 2005). The average of such a time series over ∆P , normalized to the predi...
متن کاملPrincipal Scientific Results of the Surveyor 3 Mission
The fine lunar surface material at the Surveyor 3 landing site has about 3 X 108-dyne/cm 2 cohesion, 35 ø angle of internal friction, 3 X 105-dyne/cm ' static bearing capacity. A small rock withstood a local pressure of 2 X 107 dynes/cm -ø. Soil strength and density increase significantly at depths of a few centimeters. Exposed surface has a considerably higher albedo than the material just bel...
متن کاملHigh-precision measurement of frame-dragging with the Mars Global Surveyor spacecraft in the gravitational field of Mars
In this letter we accurately measure the general relativistic gravitomagnetic Lense-Thirring effect by analyzing the post-fit residuals of the out-of-plane portion of the orbit of the Martian polar orbiter Mars Global Surveyor (MGS) over a time span of about 5 years (14 November 1999-14 January 2005). Our result is μ = 0.9937± 0.0053; general relativity predicts μ = 1. A previous test of the Le...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Geophysical Research
سال: 1971
ISSN: 0148-0227
DOI: 10.1029/jb076i014p03414