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: 7/24/2025
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 13:11:48 -70.23, 157.90 129.06 07/26/2025 13:10:38 -70.23, 156.35 128.97 58.65 70
2 07/26/2025 14:02:44 70.72, -35.58 51.48 07/26/2025 14:01:30 70.71, -35.61 51.48 1.85 74
3 07/26/2025 14:53:28 -70.76, 131.68 128.48 07/26/2025 14:52:24 -70.76, 131.75 128.47 2.64 64
4 07/26/2025 15:44:15 70.78, -61.05 51.55 07/26/2025 15:43:25 70.78, -60.97 51.56 2.82 50
5 07/26/2025 16:34:58 -70.76, 106.30 128.46 07/26/2025 16:34:20 -70.78, 106.30 128.43 2.47 38
6 07/26/2025 17:25:45 70.79, -86.43 51.58 07/26/2025 17:25:21 70.80, -86.42 51.60 1.69 24
7 07/26/2025 18:16:29 -70.82, 80.83 128.39 07/26/2025 18:16:16 -70.80, 80.85 128.40 1.86 13
8 07/26/2025 19:07:16 70.84,-111.90 51.65 07/26/2025 19:07:17 70.82,-111.87 51.63 2.77 1
9 07/26/2025 19:57:59 -70.82, 55.45 128.37 07/26/2025 19:58:12 -70.82, 55.40 128.37 1.87 13
10 07/26/2025 20:48:46 70.85,-137.28 51.67 07/26/2025 20:49:13 70.84,-137.32 51.66 1.68 27
11 07/26/2025 21:39:30 -70.88, 29.98 128.29 07/26/2025 21:40:07 -70.89, 30.04 128.29 2.45 37
12 07/26/2025 22:30:17 70.91,-162.75 51.75 07/26/2025 22:31:08 70.91,-162.68 51.74 2.66 51
13 07/26/2025 23:21:00 -70.88, 4.60 128.27 07/26/2025 23:22:03 -70.91, 4.59 128.25 2.94 63
14 07/27/2025 00:11:49 71.02, 171.69 51.88 07/27/2025 00:13:03 70.98, 171.96 51.83 10.45 74
15 07/27/2025 01:02:40 -71.41, -21.67 127.69 07/27/2025 01:03:50 -71.39, -20.04 127.79 58.05 70

Figure of NOAA-20 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 7/24/2025
SNOs_Map_NOAA-20_NOAA-19_20250724.jpg

Download SNOs between NOAA-20 and NOAA-19 since TLE EPOCH: 07/24/2025 in txt file.

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