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: 6/27/2025
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, 66.72 47.22 07/02/2025 07:16:24 70.25, 64.46 47.34 84.88 68
2 07/02/2025 08:08:27 -70.85,-126.94 132.14 07/02/2025 08:07:13 -70.85,-127.28 132.11 12.44 74
3 07/02/2025 08:59:16 70.98, 40.15 48.01 07/02/2025 08:58:06 70.99, 40.23 48.03 3.23 70
4 07/02/2025 09:49:59 -70.96,-152.49 132.02 07/02/2025 09:49:07 -70.98,-152.55 131.99 3.12 52
5 07/02/2025 10:40:46 70.99, 14.77 48.01 07/02/2025 10:40:02 71.01, 14.78 48.05 3.34 44
6 07/02/2025 11:31:30 -71.01,-177.96 131.96 07/02/2025 11:31:03 -71.00,-178.00 131.96 1.86 27
7 07/02/2025 12:22:17 71.04, -10.70 48.08 07/02/2025 12:21:58 71.04, -10.66 48.08 1.59 19
8 07/02/2025 13:13:01 -71.07, 156.57 131.89 07/02/2025 13:12:58 -71.07, 156.65 131.89 2.89 3
9 07/02/2025 14:03:47 71.04, -36.08 48.09 07/02/2025 14:03:54 71.06, -36.11 48.10 1.73 7
10 07/02/2025 14:54:31 -71.07, 131.19 131.88 07/02/2025 14:54:54 -71.09, 131.20 131.87 2.48 23
11 07/02/2025 15:45:18 71.10, -61.55 48.15 07/02/2025 15:45:50 71.08, -61.55 48.13 2.26 32
12 07/02/2025 16:36:02 -71.13, 105.72 131.82 07/02/2025 16:36:50 -71.11, 105.76 131.84 1.90 48
13 07/02/2025 17:26:48 71.10, -86.93 48.16 07/02/2025 17:27:46 71.10, -87.00 48.15 2.26 58
14 07/02/2025 18:17:32 -71.13, 80.34 131.81 07/02/2025 18:18:46 -71.14, 80.31 131.82 1.21 74
15 07/02/2025 19:08:25 71.47,-112.95 48.56 07/02/2025 19:09:36 71.43,-111.89 48.47 37.90 71

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 6/27/2025
SNOs_Map_NOAA-21_NOAA-19_20250627.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 06/27/2025 in txt file.

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