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: 3/21/2025
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, 111.27 68.56 03/27/2025 04:12:19 71.21, 110.11 68.63 41.69 72
2 03/27/2025 05:04:22 -71.56, -82.03 111.08 03/27/2025 05:03:07 -71.54, -82.01 111.09 2.31 75
3 03/27/2025 05:55:08 71.58, 85.24 68.93 03/27/2025 05:54:09 71.55, 85.25 68.91 3.33 59
4 03/27/2025 06:45:52 -71.57,-107.42 111.10 03/27/2025 06:45:03 -71.58,-107.43 111.08 0.80 49
5 03/27/2025 07:36:38 71.59, 59.85 68.91 03/27/2025 07:36:05 71.59, 59.83 68.92 0.81 33
6 03/27/2025 08:27:23 -71.63,-132.91 111.06 03/27/2025 08:26:59 -71.61,-132.85 111.08 2.84 24
7 03/27/2025 09:18:08 71.60, 34.46 68.89 03/27/2025 09:18:01 71.62, 34.41 68.92 3.07 7
8 03/27/2025 10:08:53 -71.64,-158.30 111.08 03/27/2025 10:08:55 -71.64,-158.27 111.08 1.24 2
9 03/27/2025 10:59:39 71.66, 8.98 68.93 03/27/2025 10:59:57 71.66, 8.99 68.93 0.62 18
10 03/27/2025 11:50:24 -71.70, 176.22 111.05 03/27/2025 11:50:51 -71.68, 176.31 111.07 3.72 27
11 03/27/2025 12:41:09 71.67, -16.41 68.91 03/27/2025 12:41:53 71.69, -16.43 68.93 2.64 44
12 03/27/2025 13:31:54 -71.71, 150.83 111.06 03/27/2025 13:32:47 -71.71, 150.89 111.07 2.31 53
13 03/27/2025 14:22:40 71.73, -41.90 68.95 03/27/2025 14:23:49 71.73, -41.84 68.93 1.86 69
14 03/27/2025 15:13:28 -71.92, 125.06 110.86 03/27/2025 15:14:41 -71.85, 125.67 110.97 22.38 73
15 03/27/2025 16:04:25 72.51, -68.77 69.76 03/27/2025 16:05:31 72.47, -65.85 69.59 97.74 66

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 3/21/2025
SNOs_Map_NOAA-21_NOAA-19_20250321.jpg

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

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