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: 7/10/2025
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 07/10/2025 14:03:31 -70.15, 145.35 132.01 07/10/2025 14:04:36 -70.14, 145.33 132.04 2.05 65
2 07/10/2025 14:54:15 70.03, -47.15 47.87 07/10/2025 14:54:03 70.04, -47.17 47.88 1.36 12
3 07/10/2025 15:44:50 -69.58, 120.84 132.60 07/10/2025 15:43:38 -69.65, 119.92 132.49 36.27 72
4 07/13/2025 06:20:27 -70.14, -98.87 131.65 07/13/2025 06:21:07 -70.14, -98.80 131.66 2.61 40
5 07/13/2025 07:11:11 70.02, 68.63 48.24 07/13/2025 07:10:34 70.03, 68.70 48.25 2.95 37
6 07/15/2025 21:46:51 70.75,-151.39 49.42 07/15/2025 21:48:00 70.67,-149.78 49.26 60.02 69
7 07/15/2025 22:37:22 -70.08, 17.00 131.29 07/15/2025 22:37:39 -70.07, 16.98 131.31 1.20 17
8 07/15/2025 23:28:06 69.97,-175.52 48.60 07/15/2025 23:27:06 69.96,-175.53 48.60 0.74 60
9 07/18/2025 14:03:35 70.12, -34.62 49.21 07/18/2025 14:04:40 70.14, -34.67 49.22 3.15 65
10 07/18/2025 14:54:17 -70.02, 132.85 130.90 07/18/2025 14:54:10 -70.04, 132.82 130.87 2.94 7
11 07/18/2025 15:44:54 69.54, -59.13 48.61 07/18/2025 15:43:43 69.60, -60.15 48.72 40.11 71
12 07/21/2025 06:20:30 70.12, 81.15 49.71 07/21/2025 06:21:10 70.10, 81.15 49.68 2.50 40
13 07/21/2025 07:11:12 -70.01,-111.37 130.40 07/21/2025 07:10:40 -70.00,-111.36 130.41 1.39 32
14 07/23/2025 21:46:55 -70.90, 28.36 128.93 07/23/2025 21:48:03 -70.76, 30.36 129.16 74.58 68
15 07/23/2025 22:37:25 70.07,-163.01 50.20 07/23/2025 22:37:40 70.10,-162.97 50.22 3.20 15
16 07/23/2025 23:28:07 -69.96, 4.48 129.91 07/23/2025 23:27:11 -69.95, 4.45 129.92 1.60 56

Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 7/10/2025
SNOs_Map_NOAA-21_LANDSAT-8_20250710.jpg

Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 07/10/2025 in txt file.

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