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: 3/18/2025
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, 111.30 68.55 03/27/2025 04:12:20 71.18, 110.05 68.60 44.86 71
2 03/27/2025 05:04:22 -71.54, -82.00 111.10 03/27/2025 05:03:07 -71.56, -81.97 111.07 2.57 75
3 03/27/2025 05:55:08 71.56, 85.27 68.91 03/27/2025 05:54:09 71.57, 85.28 68.93 0.76 59
4 03/27/2025 06:45:53 -71.60,-107.48 111.06 03/27/2025 06:45:03 -71.60,-107.39 111.06 3.28 50
5 03/27/2025 07:36:38 71.57, 59.88 68.90 03/27/2025 07:36:05 71.60, 59.87 68.93 3.52 33
6 03/27/2025 08:27:23 -71.61,-132.87 111.08 03/27/2025 08:26:59 -71.63,-132.81 111.06 3.33 24
7 03/27/2025 09:18:09 71.63, 34.40 68.93 03/27/2025 09:18:01 71.64, 34.45 68.94 1.90 8
8 03/27/2025 10:08:53 -71.62,-158.26 111.10 03/27/2025 10:08:56 -71.62,-158.32 111.10 2.22 3
9 03/27/2025 10:59:39 71.64, 9.01 68.91 03/27/2025 10:59:58 71.62, 8.93 68.90 3.31 19
10 03/27/2025 11:50:24 -71.68, 176.26 111.07 03/27/2025 11:50:52 -71.65, 176.26 111.10 3.02 28
11 03/27/2025 12:41:10 71.70, -16.48 68.95 03/27/2025 12:41:53 71.71, -16.39 68.95 3.17 43
12 03/27/2025 13:31:54 -71.69, 150.87 111.09 03/27/2025 13:32:48 -71.69, 150.84 111.09 1.00 54
13 03/27/2025 14:22:40 71.71, -41.87 68.93 03/27/2025 14:23:50 71.69, -41.90 68.90 2.32 70
14 03/27/2025 15:13:28 -71.90, 125.10 110.88 03/27/2025 15:14:41 -71.87, 125.71 110.95 21.47 73

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 3/18/2025
SNOs_Map_NOAA-21_NOAA-19_20250318.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 03/18/2025 in txt file.

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