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: 3/14/2025
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 03/27/2025 04:13:32 71.18, 111.32 68.53 03/27/2025 04:12:21 71.16, 110.03 68.59 46.62 71
2 03/27/2025 05:04:23 -71.52, -81.97 111.12 03/27/2025 05:03:08 -71.55, -81.99 111.08 3.67 75
3 03/27/2025 05:55:09 71.55, 85.30 68.90 03/27/2025 05:54:10 71.56, 85.26 68.92 1.63 59
4 03/27/2025 06:45:54 -71.58,-107.45 111.09 03/27/2025 06:45:04 -71.59,-107.41 111.07 1.66 50
5 03/27/2025 07:36:40 71.61, 59.82 68.93 03/27/2025 07:36:06 71.59, 59.84 68.92 1.95 34
6 03/27/2025 08:27:24 -71.59,-132.83 111.11 03/27/2025 08:27:01 -71.57,-132.92 111.12 3.49 23
7 03/27/2025 09:18:10 71.61, 34.43 68.91 03/27/2025 09:18:02 71.63, 34.43 68.93 1.35 8
8 03/27/2025 10:08:55 -71.65,-158.32 111.07 03/27/2025 10:08:56 -71.66,-158.24 111.06 2.81 1
9 03/27/2025 10:59:41 71.67, 8.94 68.95 03/27/2025 10:59:58 71.66, 9.01 68.93 2.60 17
10 03/27/2025 11:50:25 -71.65, 176.30 111.09 03/27/2025 11:50:53 -71.64, 176.24 111.11 2.37 28
11 03/27/2025 12:41:11 71.68, -16.44 68.93 03/27/2025 12:41:54 71.70, -16.41 68.94 2.03 43
12 03/27/2025 13:31:55 -71.66, 150.91 111.11 03/27/2025 13:32:49 -71.68, 150.82 111.10 3.31 54
13 03/27/2025 14:22:41 71.69, -41.83 68.91 03/27/2025 14:23:51 71.68, -41.93 68.89 3.34 70
14 03/27/2025 15:13:29 -71.88, 125.14 110.91 03/27/2025 15:14:42 -71.86, 125.70 110.96 19.35 73
15 03/27/2025 16:04:27 72.52, -68.80 69.78 03/27/2025 16:05:32 72.48, -65.83 69.60 99.39 65

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 3/14/2025
SNOs_Map_NOAA-21_NOAA-19_20250314.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 03/14/2025 in txt file.

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