Observation Sector 40

TESS Observation Sector 40 is comprised of observations made during orbits 87 and 89 of the TESS mission. Observations extend from June 24 through July 23, 2021. 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	273.077	61.745	14.154	287.0	85.0
Camera 1	282.301	26.284	97.418	286.9	49.0
Camera 2	277.614	50.011	100.377	286.9	73.0
Camera 3	262.979	73.144	-66.471	106.9	83.0
Camera 4	143.443	79.244	51.665	106.9	59.0
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 40

During Sector 40, 20,000 stars are observed at two-minute cadence, 1340 at 20-second cadence, and full-frame images are collected every 10 minutes.

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.