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: 6/29/2025
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 70.25, 66.70 47.23 07/02/2025 07:16:24 70.24, 64.44 47.33 84.78 68
2 07/02/2025 08:08:27 -70.86,-126.96 132.13 07/02/2025 08:07:13 -70.84,-127.30 132.12 12.47 74
3 07/02/2025 08:59:16 70.99, 40.13 48.02 07/02/2025 08:58:06 70.98, 40.21 48.02 3.22 70
4 07/02/2025 09:49:59 -70.97,-152.52 132.01 07/02/2025 09:49:07 -70.97,-152.57 132.00 1.86 52
5 07/02/2025 10:40:46 71.00, 14.75 48.03 07/02/2025 10:40:02 71.01, 14.77 48.04 1.40 44
6 07/02/2025 11:31:30 -71.03,-177.98 131.94 07/02/2025 11:31:02 -71.04,-177.92 131.93 2.76 28
7 07/02/2025 12:22:17 71.05, -10.72 48.09 07/02/2025 12:21:58 71.03, -10.68 48.07 3.07 19
8 07/02/2025 13:13:00 -71.03, 156.64 131.93 07/02/2025 13:12:58 -71.06, 156.63 131.90 3.62 2
9 07/02/2025 14:03:47 71.06, -36.10 48.10 07/02/2025 14:03:54 71.05, -36.12 48.10 0.90 7
10 07/02/2025 14:54:31 -71.09, 131.17 131.87 07/02/2025 14:54:54 -71.08, 131.18 131.88 0.66 23
11 07/02/2025 15:45:17 71.06, -61.48 48.11 07/02/2025 15:45:50 71.07, -61.57 48.12 3.35 33
12 07/02/2025 16:36:01 -71.09, 105.79 131.86 07/02/2025 16:36:50 -71.10, 105.74 131.85 2.48 49
13 07/02/2025 17:26:48 71.12, -86.95 48.18 07/02/2025 17:27:46 71.09, -87.01 48.15 3.13 58
14 07/02/2025 18:17:32 -71.14, 80.32 131.79 07/02/2025 18:18:46 -71.13, 80.29 131.83 2.25 74
15 07/02/2025 19:08:25 71.48,-112.97 48.58 07/02/2025 19:09:36 71.42,-111.90 48.46 38.34 71

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 6/29/2025
SNOs_Map_NOAA-21_NOAA-19_20250629.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 06/29/2025 in txt file.

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