TESS Year 4 Observations

Year 4 Observations

Observations during Year 4 comprises Sectors 40-55. In contrast to Years 1-3, Year 4 comprises 16 observing sectors. Year 4 began with Sectors 40-41 in the Northern hemisphere, pointings roughly equivalent to those of Sectors 14 and 15, at an ecliptic latitude of +85°. In Sectors 42-46, the spacecraft was rotated by 90° in order to observe the ecliptic (more detailed maps of the ecliptic observations are given below). Sectors 47-55 are Northern hemisphere pointings at ecliptic latitude of +54°, with Sectors 52 and 53 shifted north to +85° to avoid scattered light in cameras 1 and 2.

Links to Sector pages: 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55.

The tables below contains the details of TESS spacecraft orientation for Year 4. Columns are Sector number, Start and End dates of Sector, then (RA, dec, roll) in degrees (J2000) of the spacecraft and four camera boresights. Note: All future values are provisional and may be changed, although there are currently no plans to do so.

Sector	Dates	Spacecraft	Camera 1	Camera 2	Camera 3	Camera 4
40	06/24/21-07/23/21	273.08, 61.74, 14.15	282.30, 26.28, 97.42	277.61, 50.01, 100.38	262.98, 73.14, 293.53	143.44, 79.24, 51.66
41	07/23/21-08/20/21	277.62, 62.76, 37.22	301.95, 30.34, 108.71	289.56, 52.55, 117.09	254.91, 70.99, 328.21	180.26, 68.99, 39.45
42	08/20/21-09/16/21	13.01, 6.33, 292.80	339.85, -7.88, 22.34	1.96, 1.59, 23.57	24.27, 10.84, 201.11	47.84, 18.40, 195.07
43	09/16/21-10/12/21	49.53, 18.97, 284.96	14.64, 6.87, 23.04	37.49, 15.50, 18.54	62.01, 21.64, 190.61	87.95, 23.99, 180.40
44	10/12/21-11/06/21	89.61, 24.13, 270.16	51.11, 19.23, 14.87	76.50, 23.54, 5.47	102.72, 23.61, 174.83	128.16, 19.41, 165.36
45	11/06/21-12/02/21	130.30, 19.02, 255.09	91.85, 23.99, 359.67	117.81, 21.67, 349.45	142.33, 15.56, 161.50	165.20, 6.93, 156.97
46	12/02/21-12/30/21	157.70, 10.09, 248.41	121.93, 20.78, 348.27	146.19, 14.28, 340.85	168.90, 5.51, 156.88	190.92, -4.08, 156.60
47	12/30/21-01/28/22	143.38, 73.11, 327.10	119.09, 39.11, 78.27	129.33, 62.28, 70.17	187.34, 80.64, 194.10	270.00, 66.56, 113.37
48	01/28/22-02/26/22	179.43, 62.10, 317.42	151.83, 30.83, 68.36	166.08, 52.45, 58.70	203.00, 69.41, 205.82	270.00, 66.56, 142.75
49	02/26/22-03/26/22	202.64, 50.95, 321.35	179.67, 19.82, 65.28	192.72, 41.10, 58.53	217.48, 59.54, 219.10	270.00, 66.56, 171.55
50	03/26/22-04/22/22	221.86, 41.76, 329.73	204.39, 9.21, 67.61	214.82, 31.16, 63.94	231.60, 51.76, 232.60	270.00, 66.56, 199.04
51	04/22/22-05/18/22	239.43, 35.23, 339.87	227.75, 0.91, 73.67	234.94, 23.88, 72.09	245.38, 46.36, 245.95	270.00, 66.56, 225.02
52	05/18/22-06/13/22	266.36, 61.82, 343.14	255.37, 26.58, 81.19	260.96, 50.20, 77.65	278.24, 72.97, 242.12	30.09, 78.17, 131.93
53	06/13/22-07/09/22	270.81, 61.58, 3.68	273.21, 25.61, 91.94	271.99, 49.59, 92.70	268.11, 73.53, 276.19	106.92, 82.18, 77.02
54	07/09/22-08/05/22	290.12, 32.61, 13.46	297.99, -2.61, 101.32	293.09, 20.90, 102.11	286.25, 44.22, 285.87	270.01, 66.56, 299.53
55	08/05/22-09/01/22	307.87, 37.65, 24.54	322.03, 4.06, 109.25	313.41, 26.60, 111.58	300.40, 48.35, 299.65	270.00, 66.57, 325.77

TESS Ecliptic Fields

The images at right and below show the locations of the TESS fields-of-view during Sectors 42-46, including the locations of K2 campaign fields.

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