Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-20 and LANDSAT-8 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 7/21/2026

Index	Date (NOAA-20)	Time (NOAA-20)	Lat,Lon (NOAA-20)	SZA (NOAA-20 )	Date (LANDSAT-8)	Time (LANDSAT-8)	Lat,Lon (LANDSAT-8)	SZA (LANDSAT-8 )	Distance(km)	Time Diff (sec)
1	07/22/2026	18:53:36	-70.49, 73.30	129.68	07/22/2026	18:54:43	-70.49, 73.23	129.70	2.90	67
2	07/22/2026	19:44:21	70.41,-119.25	50.24	07/22/2026	19:44:10	70.39,-119.28	50.22	1.91	11
3	07/22/2026	20:34:56	-69.96, 48.75	130.22	07/22/2026	20:33:45	-70.00, 47.80	130.14	36.45	71
4	07/25/2026	11:10:36	-70.48,-170.92	129.13	07/25/2026	11:11:14	-70.50,-170.88	129.12	2.42	38
5	07/25/2026	12:01:20	70.35, -3.39	50.74	07/25/2026	12:00:42	70.34, -3.47	50.74	2.88	38
6	07/28/2026	02:37:01	70.92, 136.81	51.92	07/28/2026	02:38:11	70.82, 137.85	51.78	39.55	70
7	07/28/2026	03:27:35	-70.42, -55.06	128.60	07/28/2026	03:27:46	-70.44, -55.09	128.58	2.71	11
8	07/28/2026	04:18:20	70.34, 112.38	51.33	07/28/2026	04:17:13	70.34, 112.40	51.33	1.14	67
9	07/30/2026	18:53:53	70.50,-106.74	52.12	07/30/2026	18:54:47	70.53,-106.71	52.14	3.41	54
10	07/30/2026	19:44:35	-70.42, 60.72	127.97	07/30/2026	19:44:17	-70.43, 60.77	127.96	2.33	18
11	07/30/2026	20:35:05	69.55,-130.65	51.14	07/30/2026	20:33:57	69.60,-132.76	51.27	81.79	68
12	08/02/2026	11:10:51	70.45, 9.11	52.74	08/02/2026	11:11:18	70.45, 9.04	52.73	2.45	27
13	08/02/2026	12:01:33	-70.36, 176.56	127.35	08/02/2026	12:00:48	-70.35, 176.53	127.36	2.32	45

Figure of NOAA-20 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 7/21/2026

Download SNOs between NOAA-20 and LANDSAT-8 since TLE EPOCH: 07/21/2026 in txt file.

Historial Predications of SNOs between NOAA-20 and LANDSAT-8