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: 3/27/2025
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 71.21, 111.26 68.57 03/27/2025 04:12:19 71.20, 110.09 68.62 41.96 72
2 03/27/2025 05:04:21 -71.52, -81.96 111.12 03/27/2025 05:03:07 -71.53, -82.03 111.10 2.83 74
3 03/27/2025 05:55:07 71.53, 85.33 68.88 03/27/2025 05:54:09 71.54, 85.24 68.91 3.49 58
4 03/27/2025 06:45:52 -71.58,-107.44 111.09 03/27/2025 06:45:03 -71.56,-107.45 111.09 1.80 49
5 03/27/2025 07:36:38 71.59, 59.84 68.92 03/27/2025 07:36:05 71.58, 59.82 68.91 1.84 33
6 03/27/2025 08:27:22 -71.59,-132.83 111.11 03/27/2025 08:26:59 -71.60,-132.87 111.09 1.85 23
7 03/27/2025 09:18:08 71.60, 34.45 68.90 03/27/2025 09:18:01 71.61, 34.40 68.91 2.40 7
8 03/27/2025 10:08:53 -71.65,-158.31 111.07 03/27/2025 10:08:55 -71.63,-158.29 111.09 1.91 2
9 03/27/2025 10:59:39 71.66, 8.97 68.94 03/27/2025 10:59:57 71.65, 8.98 68.92 1.60 18
10 03/27/2025 11:50:23 -71.66, 176.30 111.09 03/27/2025 11:50:51 -71.67, 176.29 111.08 1.13 28
11 03/27/2025 12:41:09 71.67, -16.42 68.92 03/27/2025 12:41:53 71.68, -16.44 68.92 1.48 44
12 03/27/2025 13:31:54 -71.72, 150.81 111.05 03/27/2025 13:32:47 -71.70, 150.87 111.08 2.64 53
13 03/27/2025 14:22:40 71.73, -41.91 68.95 03/27/2025 14:23:49 71.72, -41.86 68.93 2.24 69
14 03/27/2025 15:13:28 -71.93, 125.04 110.85 03/27/2025 15:14:40 -71.89, 125.74 110.94 24.66 72
15 03/27/2025 16:04:25 72.51, -68.78 69.77 03/27/2025 16:05:31 72.46, -65.87 69.59 97.52 66

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 3/27/2025
SNOs_Map_NOAA-21_NOAA-19_20250327.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 03/27/2025 in txt file.

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