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: 6/28/2025
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 07/02/2025 07:17:32 70.24, 66.73 47.21 07/02/2025 07:16:24 70.26, 64.47 47.35 84.80 68
2 07/02/2025 08:08:27 -70.84,-126.93 132.15 07/02/2025 08:07:13 -70.86,-127.27 132.10 12.48 74
3 07/02/2025 08:59:16 70.97, 40.16 48.00 07/02/2025 08:58:07 70.95, 40.15 47.99 2.74 69
4 07/02/2025 09:50:00 -71.00,-152.57 131.97 07/02/2025 09:49:07 -70.99,-152.54 131.98 2.31 53
5 07/02/2025 10:40:46 70.98, 14.78 48.01 07/02/2025 10:40:03 70.97, 14.71 48.01 2.61 43
6 07/02/2025 11:31:30 -71.01,-177.95 131.96 07/02/2025 11:31:03 -71.01,-177.98 131.96 1.08 27
7 07/02/2025 12:22:17 71.03, -10.69 48.07 07/02/2025 12:21:58 71.05, -10.65 48.09 2.03 19
8 07/02/2025 13:13:01 -71.06, 156.58 131.90 07/02/2025 13:12:58 -71.08, 156.66 131.88 3.57 3
9 07/02/2025 14:03:47 71.04, -36.07 48.08 07/02/2025 14:03:54 71.07, -36.09 48.11 3.33 7
10 07/02/2025 14:54:31 -71.07, 131.20 131.89 07/02/2025 14:54:55 -71.05, 131.12 131.91 3.22 24
11 07/02/2025 15:45:18 71.09, -61.54 48.15 07/02/2025 15:45:50 71.09, -61.54 48.14 0.55 32
12 07/02/2025 16:36:02 -71.12, 105.73 131.82 07/02/2025 16:36:50 -71.12, 105.77 131.83 1.43 48
13 07/02/2025 17:26:48 71.10, -86.92 48.16 07/02/2025 17:27:46 71.11, -86.98 48.16 2.61 58
14 07/02/2025 18:17:32 -71.12, 80.35 131.82 07/02/2025 18:18:46 -71.14, 80.32 131.81 2.24 74
15 07/02/2025 19:08:25 71.47,-112.94 48.56 07/02/2025 19:09:36 71.44,-111.87 48.47 37.85 71

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 6/28/2025
SNOs_Map_NOAA-21_NOAA-19_20250628.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 06/28/2025 in txt file.

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