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: 5/14/2025
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 05/22/2025 10:06:57 -70.69,-156.67 129.84 05/22/2025 10:05:46 -70.68,-158.01 129.78 49.10 71
2 05/22/2025 10:57:47 70.92, 10.26 50.40 05/22/2025 10:56:34 70.92, 9.68 50.44 20.95 73
3 05/22/2025 11:48:35 -71.11, 177.25 129.41 05/22/2025 11:47:34 -71.12, 177.26 129.39 1.50 61
4 05/22/2025 12:39:21 71.13, -15.47 50.61 05/22/2025 12:38:27 71.10, -15.48 50.59 2.67 54
5 05/22/2025 13:30:06 -71.16, 151.78 129.37 05/22/2025 13:29:30 -71.15, 151.83 129.38 2.40 36
6 05/22/2025 14:20:51 71.13, -40.85 50.60 05/22/2025 14:20:23 71.13, -40.92 50.60 2.50 28
7 05/22/2025 15:11:36 -71.16, 126.40 129.38 05/22/2025 15:11:26 -71.17, 126.39 129.37 0.92 10
8 05/22/2025 16:02:22 71.18, -66.32 50.64 05/22/2025 16:02:18 71.21, -66.27 50.66 2.97 4
9 05/22/2025 16:53:07 -71.22, 100.93 129.33 05/22/2025 16:53:22 -71.20, 100.95 129.36 2.53 15
10 05/22/2025 17:43:53 71.24, -91.79 50.69 05/22/2025 17:44:14 71.23, -91.71 50.67 3.20 21
11 05/22/2025 18:34:37 -71.22, 75.55 129.34 05/22/2025 18:35:18 -71.22, 75.51 129.35 1.48 41
12 05/22/2025 19:25:23 71.24,-117.17 50.68 05/22/2025 19:26:10 71.26,-117.15 50.68 1.73 47
13 05/22/2025 20:16:08 -71.28, 50.08 129.30 05/22/2025 20:17:14 -71.25, 50.07 129.34 3.14 66
14 05/22/2025 21:06:54 71.30,-142.64 50.72 05/22/2025 21:08:06 71.28,-142.59 50.69 2.77 72
15 05/22/2025 21:57:50 -71.90, 23.59 128.65 05/22/2025 21:58:58 -71.88, 25.78 128.75 75.79 68

Figure of NOAA-20 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 5/14/2025
SNOs_Map_NOAA-20_NOAA-19_20250514.jpg

Download SNOs between NOAA-20 and NOAA-19 since TLE EPOCH: 05/14/2025 in txt file.

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