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: 8/4/2025
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 08/11/2025 19:57:45 -70.12, 56.60 124.90 08/11/2025 19:56:35 -70.09, 54.96 124.85 62.20 70
2 08/11/2025 20:48:41 70.63,-136.90 55.66 08/11/2025 20:47:26 70.66,-136.87 55.69 2.90 75
3 08/11/2025 21:39:25 -70.65, 30.39 124.32 08/11/2025 21:38:20 -70.67, 30.44 124.28 3.14 65
4 08/11/2025 22:30:12 70.69,-162.37 55.74 08/11/2025 22:29:22 70.67,-162.32 55.73 2.79 50
5 08/11/2025 23:20:56 -70.71, 4.92 124.23 08/11/2025 23:20:16 -70.69, 4.98 124.25 3.12 40
6 08/12/2025 00:11:42 70.70, 172.24 55.77 08/12/2025 00:11:18 70.69, 172.23 55.77 0.89 24
7 08/12/2025 01:02:26 -70.71, -20.47 124.21 08/12/2025 01:02:12 -70.71, -20.47 124.21 0.59 14
8 08/12/2025 01:53:12 70.70, 146.86 55.80 08/12/2025 01:53:14 70.71, 146.77 55.81 3.22 2
9 08/12/2025 02:43:56 -70.72, -45.85 124.18 08/12/2025 02:44:08 -70.73, -45.92 124.17 2.77 12
10 08/12/2025 03:34:43 70.76, 121.39 55.88 08/12/2025 03:35:09 70.78, 121.41 55.89 2.02 26
11 08/12/2025 04:25:27 -70.78, -71.32 124.10 08/12/2025 04:26:03 -70.80, -71.29 124.09 2.35 36
12 08/12/2025 05:16:14 70.82, 95.92 55.96 08/12/2025 05:17:05 70.80, 95.95 55.93 2.93 51
13 08/12/2025 06:06:58 -70.83, -96.79 124.02 08/12/2025 06:07:59 -70.81, -96.74 124.05 2.99 61
14 08/12/2025 06:57:46 70.93, 70.36 56.10 08/12/2025 06:58:59 70.92, 70.68 56.06 11.72 73
15 08/12/2025 07:48:37 -71.31,-122.97 123.49 08/12/2025 07:49:47 -71.24,-121.47 123.63 53.99 70

Figure of NOAA-20 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 8/4/2025
SNOs_Map_NOAA-20_NOAA-19_20250804.jpg

Download SNOs between NOAA-20 and NOAA-19 since TLE EPOCH: 08/04/2025 in txt file.

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