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: 3/16/2025
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 04:13:32 71.20, 111.29 68.55 03/27/2025 04:12:21 71.17, 110.04 68.60 44.89 71
2 03/27/2025 05:04:23 -71.54, -82.01 111.10 03/27/2025 05:03:08 -71.56, -81.98 111.07 2.12 75
3 03/27/2025 05:55:09 71.57, 85.26 68.92 03/27/2025 05:54:10 71.57, 85.28 68.93 0.66 59
4 03/27/2025 06:45:54 -71.60,-107.49 111.06 03/27/2025 06:45:04 -71.59,-107.40 111.07 3.33 50
5 03/27/2025 07:36:39 71.58, 59.87 68.90 03/27/2025 07:36:06 71.60, 59.86 68.93 2.72 33
6 03/27/2025 08:27:24 -71.61,-132.88 111.08 03/27/2025 08:27:00 -71.63,-132.81 111.06 3.06 24
7 03/27/2025 09:18:10 71.64, 34.39 68.94 03/27/2025 09:18:02 71.64, 34.44 68.94 1.80 8
8 03/27/2025 10:08:54 -71.62,-158.26 111.10 03/27/2025 10:08:57 -71.61,-158.33 111.10 2.29 3
9 03/27/2025 10:59:40 71.64, 9.00 68.92 03/27/2025 10:59:58 71.67, 9.02 68.94 3.07 18
10 03/27/2025 11:50:25 -71.68, 176.25 111.07 03/27/2025 11:50:53 -71.65, 176.25 111.10 3.20 28
11 03/27/2025 12:41:11 71.70, -16.48 68.95 03/27/2025 12:41:54 71.71, -16.40 68.94 3.10 43
12 03/27/2025 13:31:55 -71.69, 150.86 111.09 03/27/2025 13:32:49 -71.68, 150.84 111.10 1.05 54
13 03/27/2025 14:22:41 71.71, -41.87 68.93 03/27/2025 14:23:51 71.69, -41.91 68.90 2.73 70
14 03/27/2025 15:13:29 -71.90, 125.10 110.88 03/27/2025 15:14:42 -71.87, 125.71 110.95 21.44 73

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 3/16/2025
SNOs_Map_NOAA-21_NOAA-19_20250316.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 03/16/2025 in txt file.

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