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: 3/26/2025
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 04:13:31 71.19, 111.31 68.54 03/27/2025 04:12:20 71.18, 110.05 68.60 45.24 71
2 03/27/2025 05:04:22 -71.54, -82.00 111.10 03/27/2025 05:03:07 -71.56, -81.98 111.07 1.56 75
3 03/27/2025 05:55:08 71.56, 85.28 68.91 03/27/2025 05:54:09 71.57, 85.28 68.93 1.37 59
4 03/27/2025 06:45:53 -71.60,-107.49 111.06 03/27/2025 06:45:03 -71.59,-107.40 111.07 3.31 50
5 03/27/2025 07:36:39 71.62, 59.80 68.94 03/27/2025 07:36:05 71.60, 59.86 68.93 2.82 34
6 03/27/2025 08:27:23 -71.61,-132.88 111.08 03/27/2025 08:26:59 -71.62,-132.82 111.07 2.31 24
7 03/27/2025 09:18:09 71.63, 34.41 68.93 03/27/2025 09:18:01 71.64, 34.45 68.94 1.89 8
8 03/27/2025 10:08:53 -71.62,-158.27 111.10 03/27/2025 10:08:56 -71.61,-158.34 111.11 2.93 3
9 03/27/2025 10:59:39 71.64, 9.02 68.91 03/27/2025 10:59:58 71.62, 8.93 68.90 3.39 19
10 03/27/2025 11:50:24 -71.68, 176.25 111.06 03/27/2025 11:50:51 -71.69, 176.34 111.06 3.32 27
11 03/27/2025 12:41:10 71.70, -16.47 68.95 03/27/2025 12:41:53 71.71, -16.39 68.95 2.91 43
12 03/27/2025 13:31:54 -71.69, 150.86 111.08 03/27/2025 13:32:48 -71.68, 150.82 111.10 2.02 54
13 03/27/2025 14:22:40 71.71, -41.86 68.93 03/27/2025 14:23:50 71.69, -41.91 68.90 2.34 70
14 03/27/2025 15:13:28 -71.90, 125.09 110.88 03/27/2025 15:14:41 -71.86, 125.69 110.96 21.40 73

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 3/26/2025
SNOs_Map_NOAA-21_NOAA-19_20250326.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 03/26/2025 in txt file.

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