Sumários

Introduction to orbit mechanics (I)

8 Novembro 2022, 08:00 André Maria da Silva Dias Moitinho de Almeida

:: Orbit Description
- Ground traces
- Orbit description: Keplerian elements
- Orbit Observation and determination:
-Two/Three Line Elements (TLSs)
- Simplified Perturbation models (SGP, SGP4, SDP4, SGP8 and SDP8)

Further reading:
Chapter 4 of Fortescue et al. (Spacecraft Systems Engineering)


Introduction to Space Systems Engineering (I)

3 Novembro 2022, 08:00 André Maria da Silva Dias Moitinho de Almeida

:: Introduction
- Systemic vision of the space mission
- Space Segment: "Service modules" and "payloads"
- Launchers,
- Ground Segment
- Weight and costs


Instruments

27 Outubro 2022, 08:00 André Maria da Silva Dias Moitinho de Almeida

::Instruments
- Photometers and cameras
- Spectrographs
- Polarimeters
- Interferometers

:Beyond basic CCD use
- Mosaics
- "Binning". Reasons, advantages and disadvantages. Differences in load transfer / Acquisition / reading

Further reading: Chap 5 of McLean


CCD image processing (Part IV)

25 Outubro 2022, 09:00 André Maria da Silva Dias Moitinho de Almeida

:: Correction of shutter effects:
- Tutorial of arithmetic operations with images (and header values): imarith and imexpr
- Creation of images / matrices of shutter opening/closing times

- Examination of shutter images
- Decreasing noise (high frequency component) by
  * Combination of images   
  * Filtering (with boxcar filter)
- Application of shutter corrections to images with exposure times > 0.


Telescopes, instruments and astronomical observatories (part III)

25 Outubro 2022, 08:00 André Maria da Silva Dias Moitinho de Almeida

- Active optics
- Comparison of primary mirror sizes and the evolution of their size.


- Presentation of some of the best observatories in the world: Paranal, Mauna Kea, La Palma
- The great telescopes of the next decade: the Extremely Large Telescopes, E-ELT, TMT and GMT
- Astronomical observations in space. Reasons and presentation of recent ESA missions.
- Radio telescopes (single dish and interferometry)
- High energy observations: X-rays and gamma rays