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: 7/13/2025
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 07/26/2025 13:11:49 -70.26, 157.85 129.03 07/26/2025 13:10:38 -70.24, 156.36 128.96 55.87 71
2 07/26/2025 14:02:44 70.72, -35.57 51.47 07/26/2025 14:01:30 70.71, -35.61 51.48 1.39 74
3 07/26/2025 14:53:28 -70.74, 131.71 128.50 07/26/2025 14:52:25 -70.72, 131.68 128.50 1.68 63
4 07/26/2025 15:44:15 70.77, -61.04 51.55 07/26/2025 15:43:25 70.78, -60.97 51.56 2.80 50
5 07/26/2025 16:34:59 -70.79, 106.25 128.43 07/26/2025 16:34:20 -70.80, 106.32 128.42 2.81 39
6 07/26/2025 17:25:45 70.78, -86.42 51.57 07/26/2025 17:25:21 70.80, -86.42 51.60 2.64 24
7 07/26/2025 18:16:29 -70.80, 80.86 128.41 07/26/2025 18:16:16 -70.81, 80.87 128.39 1.80 13
8 07/26/2025 19:07:16 70.84,-111.89 51.65 07/26/2025 19:07:17 70.82,-111.87 51.63 1.79 1
9 07/26/2025 19:58:00 -70.86, 55.39 128.33 07/26/2025 19:58:12 -70.83, 55.42 128.36 2.64 12
10 07/26/2025 20:48:46 70.84,-137.28 51.67 07/26/2025 20:49:13 70.84,-137.32 51.66 1.61 27
11 07/26/2025 21:39:30 -70.86, 30.01 128.31 07/26/2025 21:40:08 -70.85, 29.97 128.32 1.77 38
12 07/26/2025 22:30:17 70.90,-162.75 51.74 07/26/2025 22:31:08 70.91,-162.68 51.75 2.84 51
13 07/26/2025 23:21:01 -70.92, 4.54 128.23 07/26/2025 23:22:03 -70.92, 4.61 128.24 2.48 62
14 07/27/2025 00:11:50 71.06, 171.61 51.93 07/27/2025 00:13:03 70.98, 171.96 51.83 15.33 73
15 07/27/2025 01:02:41 -71.44, -21.74 127.65 07/27/2025 01:03:51 -71.35, -20.11 127.83 58.45 70

Figure of NOAA-20 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 7/13/2025
SNOs_Map_NOAA-20_NOAA-19_20250713.jpg

Download SNOs between NOAA-20 and NOAA-19 since TLE EPOCH: 07/13/2025 in txt file.

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