Observation Sector 90

TESS Observation Sector 90 is comprised of observations made during orbits 187 and 188 of the TESS mission. Observations extend from March 12 through April 9, 2025. The regions of the sky observed are shown at right.

Pointing

The orientation of the spacecraft and camera boresights are given in the table below.

Boresight	RA	Dec	Roll	Ecliptic Longitude	Ecliptic Latitude
Spacecraft	155.070	-51.724	141.946	187.4	-55.5
Camera 1	177.809	-20.390	-114.039	186.4	-19.5
Camera 2	164.969	-41.795	-120.808	186.9	-43.5
Camera 3	140.043	-60.377	39.423	188.2	-67.5
Camera 4	85.893	-67.193	-9.926	336.7	-88.3
All coordinates are degrees (J2000)

Map of TESS camera fields-of-view in ecliptic coordinates. Camera 1 is red, camera 2 is magenta, camera 3 is blue, camera 4 is green. The field of camera 4 looks distorted because it is centered on the ecliptic pole. The thin black line is the ecliptic; the thick black line is the galactic plane.

Map of TESS camera fields-of-view in celestial coordinates. Camera 1 is red, camera 2 is magenta, camera 3 is blue, camera 4 is green. The thin black line is the ecliptic; the thick black line is the galactic plane.

Targets for Sector 90

During Sector 90, 12,000 stars will be observed at two-minute cadence, up to 2,000 stars at 20-second cadence, and full-frame images will be collected every 200 seconds.

The list of targets observed at two-minute cadence are given on the Target List page. The target list includes the camera and CCD on which the target can be found, TIC ID, RA, declination, and TESS magnitude.