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: 6/21/2025
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 07/02/2025 07:17:32 70.25, 66.71 47.22 07/02/2025 07:16:24 70.25, 64.47 47.34 84.35 68
2 07/02/2025 08:08:27 -70.85,-126.94 132.15 07/02/2025 08:07:13 -70.87,-127.26 132.10 12.16 74
3 07/02/2025 08:59:15 70.93, 40.23 47.95 07/02/2025 08:58:07 70.95, 40.15 47.98 3.37 68
4 07/02/2025 09:50:00 -71.01,-152.58 131.97 07/02/2025 09:49:07 -70.99,-152.53 131.98 2.38 53
5 07/02/2025 10:40:46 70.99, 14.76 48.02 07/02/2025 10:40:03 70.97, 14.70 48.01 2.95 43
6 07/02/2025 11:31:30 -71.01,-177.96 131.96 07/02/2025 11:31:03 -71.01,-177.98 131.95 0.76 27
7 07/02/2025 12:22:17 71.04, -10.71 48.08 07/02/2025 12:21:58 71.04, -10.65 48.08 2.06 19
8 07/02/2025 13:13:01 -71.06, 156.57 131.90 07/02/2025 13:12:59 -71.03, 156.58 131.93 3.55 2
9 07/02/2025 14:03:47 71.05, -36.09 48.09 07/02/2025 14:03:54 71.06, -36.10 48.11 1.90 7
10 07/02/2025 14:54:31 -71.07, 131.19 131.89 07/02/2025 14:54:55 -71.05, 131.13 131.90 2.79 24
11 07/02/2025 15:45:18 71.10, -61.56 48.16 07/02/2025 15:45:50 71.09, -61.54 48.13 1.99 32
12 07/02/2025 16:36:02 -71.12, 105.72 131.82 07/02/2025 16:36:50 -71.13, 105.77 131.83 1.83 48
13 07/02/2025 17:26:48 71.11, -86.94 48.17 07/02/2025 17:27:46 71.11, -86.99 48.16 1.68 58
14 07/02/2025 18:17:32 -71.13, 80.34 131.81 07/02/2025 18:18:46 -71.15, 80.33 131.80 2.34 74
15 07/02/2025 19:08:25 71.48,-112.96 48.57 07/02/2025 19:09:36 71.44,-111.88 48.47 38.44 71

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 6/21/2025
SNOs_Map_NOAA-21_NOAA-19_20250621.jpg

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

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