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To everyone in the TESS collaboration, throughout the world: The past few days, weeks, and months have not been easy…
TESS will monitor more than 200,000 stars for temporary drops in brightness caused by planetary transits. This first-ever spaceborne all-sky transit survey will identify planets of all sizes.
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Data release products include: Raw full frame images, calibrated full frame images, target pixels, light curves, flat fields, pixel response function, and lists of TESS Objects of Interest (TOIs).
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The TESS Followup Program (TFOP) aims to complete the TESS mission Level 1 Requirement of delivering 50 transiting small planets with measured masses to the community.
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TESS was launched on April 18, 2018 aboard a SpaceX Falcon 9 rocket out of Cape Canaveral.
TESS will tile the sky with 26 segments, observing the southern hemisphere in the first year of mission operation and the northern hemisphere in the second year. TESS has a unique, 13.7 day, highly elliptical cislunar orbit about Earth. With a 27.4 day observing period per segment, the satellite is most sensitive to exoplanets with a periods of less than 13 days (so that at least two transits are used for discovery).
The circular regions where segment overlap at the ecliptic poles have observing period of just over 100 days, enabling longer period planets to be discovered. These regions are known as the continuous viewing zones (CVZs).
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TESS aims for 50 ppm photometric precision on stars with TESS magnitude 9-15, although brighter stars can also be monitored.
Every sector, the TESS spacecraft will downlink about 200,000 two-minute cadence postage stamps, as well as full frame images binned on board at a 30-minute cadence.
The team has prepared the TESS Input Catalog (TIC) of over 1 billion objects, with a special subset Candidate Target List (CTL) of 200,000 objects for the two-minute cadence observations.
TESS anticipates the discovery of thousands of exoplanets of all sizes around a variety of star types. It has committed to delivering 50 planets of size less than 4 Earth radii with measured masses to the community. An international effort under the TESS Follow-up Operations Program (TFOP) is committed to observations to distill the TESS planet candidates down to the list of 50 with measured masses, using the best ground-based telescopes in the world.
To everyone in the TESS collaboration, throughout the world: The past few days, weeks, and months have not been easy…
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