Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and NOAA-19 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 5/6/2025
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (NOAA-19) Time (NOAA-19) Lat,Lon (NOAA-19) SZA (NOAA-19 ) Distance(km) Time Diff (sec)
1 05/14/2025 13:31:24 -70.91, 152.25 127.92 05/14/2025 13:30:12 -70.91, 151.09 127.87 41.93 72
2 05/14/2025 14:22:15 71.16, -40.88 52.34 05/14/2025 14:21:01 71.18, -41.15 52.38 10.15 74
3 05/14/2025 15:13:01 -71.27, 126.25 127.56 05/14/2025 15:12:01 -71.29, 126.29 127.53 3.02 60
4 05/14/2025 16:03:47 71.27, -66.43 52.44 05/14/2025 16:02:56 71.26, -66.50 52.44 2.52 51
5 05/14/2025 16:54:32 -71.32, 100.78 127.52 05/14/2025 16:53:57 -71.32, 100.86 127.52 2.68 35
6 05/14/2025 17:45:18 71.32, -91.90 52.48 05/14/2025 17:44:51 71.33, -91.84 52.49 2.70 27
7 05/14/2025 18:36:02 -71.32, 75.41 127.53 05/14/2025 18:35:53 -71.35, 75.42 127.51 2.55 9
8 05/14/2025 19:26:49 71.37,-117.37 52.52 05/14/2025 19:26:47 71.36,-117.28 52.50 3.55 2
9 05/14/2025 20:17:33 -71.38, 49.94 127.49 05/14/2025 20:17:49 -71.37, 49.99 127.50 1.81 16
10 05/14/2025 21:08:19 71.37,-142.75 52.50 05/14/2025 21:08:43 71.39,-142.72 52.51 1.78 24
11 05/14/2025 21:59:03 -71.38, 24.56 127.51 05/14/2025 21:59:45 -71.40, 24.55 127.49 2.36 42
12 05/14/2025 22:49:50 71.43,-168.22 52.54 05/14/2025 22:50:39 71.41,-168.15 52.52 2.86 49
13 05/14/2025 23:40:34 -71.43, -0.91 127.47 05/14/2025 23:41:41 -71.43, -0.88 127.48 1.07 67
14 05/15/2025 00:31:21 71.48, 166.31 52.58 05/15/2025 00:32:35 71.44, 166.41 52.52 5.86 74
15 05/15/2025 01:22:17 -72.10, -27.52 126.77 05/15/2025 01:23:25 -72.06, -25.16 126.90 80.88 68

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 5/6/2025
SNOs_Map_NOAA-21_NOAA-19_20250506.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 05/06/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and NOAA-19