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: 5/13/2025
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, 152.23 127.91 05/14/2025 13:30:12 -70.89, 151.06 127.89 42.57 72
2 05/14/2025 14:22:15 71.16, -40.88 52.34 05/14/2025 14:21:01 71.17, -41.18 52.37 10.62 74
3 05/14/2025 15:13:01 -71.28, 126.23 127.55 05/14/2025 15:12:01 -71.28, 126.26 127.54 1.02 60
4 05/14/2025 16:03:47 71.27, -66.44 52.44 05/14/2025 16:02:55 71.30, -66.43 52.47 3.39 52
5 05/14/2025 16:54:31 -71.28, 100.86 127.56 05/14/2025 16:53:57 -71.30, 100.82 127.53 2.73 34
6 05/14/2025 17:45:18 71.32, -91.90 52.48 05/14/2025 17:44:51 71.32, -91.86 52.48 1.50 27
7 05/14/2025 18:36:02 -71.33, 75.39 127.52 05/14/2025 18:35:53 -71.33, 75.39 127.53 0.44 9
8 05/14/2025 19:26:48 71.32,-117.28 52.46 05/14/2025 19:26:47 71.35,-117.30 52.49 3.21 1
9 05/14/2025 20:17:32 -71.33, 50.01 127.54 05/14/2025 20:17:49 -71.36, 49.95 127.52 3.18 17
10 05/14/2025 21:08:19 71.37,-142.75 52.50 05/14/2025 21:08:43 71.38,-142.74 52.50 0.48 24
11 05/14/2025 21:59:03 -71.39, 24.55 127.50 05/14/2025 21:59:45 -71.38, 24.52 127.51 1.05 42
12 05/14/2025 22:49:50 71.43,-168.22 52.54 05/14/2025 22:50:39 71.40,-168.17 52.50 3.29 49
13 05/14/2025 23:40:34 -71.44, -0.92 127.46 05/14/2025 23:41:41 -71.41, -0.92 127.50 3.43 67
14 05/15/2025 00:31:21 71.48, 166.31 52.58 05/15/2025 00:32:34 71.48, 166.49 52.56 6.11 73
15 05/15/2025 01:22:17 -72.11, -27.53 126.77 05/15/2025 01:23:25 -72.04, -25.19 126.91 80.46 68

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 5/13/2025
SNOs_Map_NOAA-21_NOAA-19_20250513.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 05/13/2025 in txt file.

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