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: 6/27/2025
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 06/27/2025 06:20:20 -70.12, -98.81 133.22 06/27/2025 06:21:04 -70.11, -98.86 133.24 2.76 44
2 06/27/2025 07:11:05 70.03, 68.64 46.69 06/27/2025 07:10:31 70.00, 68.64 46.66 2.96 34
3 06/29/2025 21:46:47 70.85,-151.51 47.69 06/29/2025 21:47:55 70.70,-149.73 47.47 67.25 68
4 06/29/2025 22:37:16 -70.09, 17.00 133.11 06/29/2025 22:37:34 -70.10, 17.02 133.11 0.84 18
5 06/29/2025 23:28:01 70.01,-175.56 46.81 06/29/2025 23:27:01 69.99,-175.49 46.80 2.99 60
6 07/02/2025 14:03:30 70.14, -34.62 47.13 07/02/2025 14:04:35 70.13, -34.69 47.11 2.75 65
7 07/02/2025 14:54:12 -70.07, 132.81 132.95 07/02/2025 14:54:04 -70.08, 132.87 132.94 2.78 8
8 07/02/2025 15:44:49 69.56, -59.13 46.53 07/02/2025 15:43:38 69.58, -60.17 46.60 40.47 71
9 07/05/2025 06:20:25 70.12, 81.17 47.35 07/05/2025 06:21:03 70.15, 81.22 47.37 3.43 38
10 07/05/2025 07:11:06 -69.99,-111.31 132.79 07/05/2025 07:10:34 -69.99,-111.37 132.78 2.36 32
11 07/07/2025 21:46:48 -70.80, 28.54 131.65 07/07/2025 21:47:57 -70.70, 30.28 131.83 64.61 69
12 07/07/2025 22:37:21 70.11,-163.04 47.62 07/07/2025 22:37:33 70.10,-162.97 47.60 3.13 12
13 07/07/2025 23:28:02 -69.97, 4.49 132.53 07/07/2025 23:27:04 -69.94, 4.45 132.54 3.24 58
14 07/10/2025 14:03:32 -70.16, 145.34 132.00 07/10/2025 14:04:36 -70.15, 145.35 132.02 0.83 64
15 07/10/2025 14:54:16 70.05, -47.18 47.89 07/10/2025 14:54:03 70.03, -47.17 47.87 1.40 13
16 07/10/2025 15:44:50 -69.53, 120.90 132.66 07/10/2025 15:43:39 -69.61, 119.87 132.53 41.19 71

Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 6/27/2025
SNOs_Map_NOAA-21_LANDSAT-8_20250627.jpg

Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 06/27/2025 in txt file.

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