Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-20 and NOAA-19 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 5/25/2025
Index Date (NOAA-20) Time (NOAA-20) Lat,Lon (NOAA-20) SZA (NOAA-20 ) Date (NOAA-19) Time (NOAA-19) Lat,Lon (NOAA-19) SZA (NOAA-19 ) Distance(km) Time Diff (sec)
1 06/07/2025 15:11:28 -70.34, 127.74 132.52 06/07/2025 15:10:20 -70.33, 125.61 132.44 79.93 68
2 06/07/2025 16:02:18 70.57, -65.31 47.72 06/07/2025 16:01:07 70.56, -66.73 47.77 52.57 71
3 06/07/2025 16:53:11 -71.02, 101.25 131.81 06/07/2025 16:52:03 -71.02, 101.30 131.80 1.66 68
4 06/07/2025 17:43:56 70.99, -91.38 48.16 06/07/2025 17:42:55 70.99, -91.47 48.17 3.06 61
5 06/07/2025 18:34:41 -71.03, 75.87 131.81 06/07/2025 18:33:59 -71.05, 75.86 131.79 2.13 42
6 06/07/2025 19:25:27 71.05,-116.85 48.21 06/07/2025 19:24:50 71.07,-116.82 48.24 2.89 37
7 06/07/2025 20:16:12 -71.08, 50.40 131.76 06/07/2025 20:15:55 -71.07, 50.41 131.77 1.51 17
8 06/07/2025 21:06:58 71.10,-142.32 48.26 06/07/2025 21:06:46 71.09,-142.26 48.25 2.43 12
9 06/07/2025 21:57:42 -71.09, 25.02 131.76 06/07/2025 21:57:51 -71.09, 24.97 131.75 1.96 9
10 06/07/2025 22:48:28 71.11,-167.70 48.26 06/07/2025 22:48:42 71.12,-167.70 48.27 1.38 14
11 06/07/2025 23:39:13 -71.14, -0.45 131.71 06/07/2025 23:39:47 -71.12, -0.47 131.74 2.79 34
12 06/08/2025 00:29:59 71.16, 166.83 48.31 06/08/2025 00:30:38 71.14, 166.86 48.29 2.41 39
13 06/08/2025 01:20:43 -71.15, -25.83 131.71 06/08/2025 01:21:43 -71.14, -25.91 131.72 2.98 60
14 06/08/2025 02:11:29 71.16, 141.45 48.31 06/08/2025 02:12:34 71.17, 141.42 48.30 1.06 65
15 06/08/2025 03:02:21 -71.56, -51.94 131.27 06/08/2025 03:03:32 -71.52, -50.70 131.37 43.78 71

Figure of NOAA-20 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 5/25/2025
SNOs_Map_NOAA-20_NOAA-19_20250525.jpg

Download SNOs between NOAA-20 and NOAA-19 since TLE EPOCH: 05/25/2025 in txt file.

Historial Predications of SNOs between NOAA-20 and NOAA-19