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: 3/22/2025
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 04:13:30 71.16, 111.35 68.51 03/27/2025 04:12:19 71.19, 110.08 68.61 45.92 71
2 03/27/2025 05:04:21 -71.51, -81.95 111.13 03/27/2025 05:03:07 -71.52, -82.04 111.10 3.38 74
3 03/27/2025 05:55:08 71.59, 85.23 68.94 03/27/2025 05:54:08 71.58, 85.31 68.94 2.82 60
4 03/27/2025 06:45:52 -71.57,-107.43 111.09 03/27/2025 06:45:03 -71.56,-107.46 111.10 2.31 49
5 03/27/2025 07:36:38 71.59, 59.84 68.92 03/27/2025 07:36:04 71.62, 59.89 68.95 3.20 34
6 03/27/2025 08:27:22 -71.58,-132.82 111.11 03/27/2025 08:26:59 -71.59,-132.88 111.10 2.33 23
7 03/27/2025 09:18:08 71.60, 34.45 68.90 03/27/2025 09:18:01 71.60, 34.38 68.90 2.63 7
8 03/27/2025 10:08:53 -71.64,-158.31 111.08 03/27/2025 10:08:55 -71.63,-158.30 111.09 2.04 2
9 03/27/2025 10:59:39 71.66, 8.97 68.94 03/27/2025 10:59:57 71.64, 8.96 68.91 3.06 18
10 03/27/2025 11:50:23 -71.65, 176.30 111.09 03/27/2025 11:50:51 -71.66, 176.28 111.09 1.30 28
11 03/27/2025 12:41:09 71.67, -16.42 68.92 03/27/2025 12:41:53 71.67, -16.46 68.91 1.39 44
12 03/27/2025 13:31:54 -71.71, 150.82 111.06 03/27/2025 13:32:47 -71.69, 150.86 111.09 2.40 53
13 03/27/2025 14:22:40 71.73, -41.91 68.96 03/27/2025 14:23:49 71.71, -41.88 68.92 3.21 69
14 03/27/2025 15:13:28 -71.93, 125.05 110.86 03/27/2025 15:14:40 -71.88, 125.73 110.94 24.00 72
15 03/27/2025 16:04:25 72.51, -68.78 69.77 03/27/2025 16:05:31 72.45, -65.89 69.57 96.97 66

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 3/22/2025
SNOs_Map_NOAA-21_NOAA-19_20250322.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 03/22/2025 in txt file.

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