Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and LANDSAT-8 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 2/25/2025
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (LANDSAT-8) Time (LANDSAT-8) Lat,Lon (LANDSAT-8) SZA (LANDSAT-8 ) Distance(km) Time Diff (sec)
1 02/27/2025 06:20:13 70.19, 81.22 78.46 02/27/2025 06:21:06 70.17, 81.19 78.43 2.51 53
2 02/27/2025 07:10:54 -70.07,-111.28 101.68 02/27/2025 07:10:36 -70.06,-111.34 101.70 2.83 18
3 02/27/2025 08:01:22 69.13, 57.39 77.32 02/27/2025 08:00:15 69.23, 55.18 77.52 88.17 67
4 03/01/2025 22:37:07 70.15,-162.96 77.40 03/01/2025 22:37:29 70.17,-162.92 77.40 1.79 22
5 03/01/2025 23:27:48 -70.03, 4.55 102.75 03/01/2025 23:26:59 -70.05, 4.55 102.72 2.61 49
6 03/04/2025 14:03:17 -70.21, 145.42 103.57 03/04/2025 14:04:26 -70.22, 145.41 103.57 1.02 69
7 03/04/2025 14:54:01 70.08, -47.08 76.29 03/04/2025 14:53:53 70.10, -47.11 76.31 2.66 8
8 03/04/2025 15:44:38 -69.74, 120.75 104.09 03/04/2025 15:43:26 -69.83, 120.14 103.97 25.49 72
9 03/07/2025 06:20:11 -70.15, -98.72 104.68 03/07/2025 06:20:49 -70.16, -98.77 104.67 2.32 38
10 03/07/2025 07:10:55 70.03, 68.77 75.19 03/07/2025 07:10:16 70.04, 68.71 75.21 2.98 39
11 03/09/2025 21:46:27 70.40,-150.67 74.56 03/09/2025 21:47:39 70.32,-150.27 74.44 17.91 72
12 03/09/2025 22:37:05 -70.10, 17.12 105.78 03/09/2025 22:37:11 -70.10, 17.05 105.78 2.46 6
13 03/09/2025 23:27:48 69.99,-175.40 74.09 03/09/2025 23:26:37 69.98,-175.47 74.10 2.97 71

Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 2/25/2025
SNOs_Map_NOAA-21_LANDSAT-8_20250225.jpg

Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 02/25/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and LANDSAT-8