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: 5/10/2025
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 -70.92, 152.23 127.91 05/14/2025 13:30:12 -70.88, 151.05 127.89 42.93 72
2 05/14/2025 14:22:15 71.17, -40.89 52.35 05/14/2025 14:21:01 71.16, -41.19 52.36 10.90 74
3 05/14/2025 15:13:01 -71.28, 126.23 127.55 05/14/2025 15:12:01 -71.27, 126.25 127.55 1.35 60
4 05/14/2025 16:03:47 71.27, -66.45 52.44 05/14/2025 16:02:55 71.29, -66.44 52.46 1.81 52
5 05/14/2025 16:54:31 -71.28, 100.85 127.56 05/14/2025 16:53:57 -71.30, 100.81 127.54 2.20 34
6 05/14/2025 17:45:18 71.32, -91.91 52.48 05/14/2025 17:44:51 71.31, -91.88 52.47 1.68 27
7 05/14/2025 18:36:02 -71.33, 75.39 127.52 05/14/2025 18:35:53 -71.32, 75.38 127.53 1.33 9
8 05/14/2025 19:26:48 71.33,-117.29 52.47 05/14/2025 19:26:47 71.34,-117.32 52.48 1.82 1
9 05/14/2025 20:17:32 -71.34, 50.01 127.54 05/14/2025 20:17:49 -71.35, 49.94 127.52 2.87 17
10 05/14/2025 21:08:19 71.38,-142.76 52.50 05/14/2025 21:08:43 71.37,-142.75 52.49 1.48 24
11 05/14/2025 21:59:03 -71.39, 24.54 127.50 05/14/2025 21:59:45 -71.38, 24.51 127.51 1.88 42
12 05/14/2025 22:49:49 71.38,-168.13 52.49 05/14/2025 22:50:39 71.39,-168.19 52.50 2.33 50
13 05/14/2025 23:40:34 -71.44, -0.93 127.46 05/14/2025 23:41:40 -71.45, -0.83 127.46 3.50 66
14 05/15/2025 00:31:21 71.49, 166.30 52.58 05/15/2025 00:32:34 71.47, 166.47 52.55 6.07 73
15 05/15/2025 01:22:17 -72.11, -27.53 126.77 05/15/2025 01:23:25 -72.04, -25.20 126.92 80.20 68

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 5/10/2025
SNOs_Map_NOAA-21_NOAA-19_20250510.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 05/10/2025 in txt file.

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