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: 6/19/2025
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 70.26, 66.70 47.23 07/02/2025 07:16:24 70.23, 64.43 47.32 85.23 68
2 07/02/2025 08:08:27 -70.85,-126.95 132.14 07/02/2025 08:07:13 -70.84,-127.30 132.12 12.88 74
3 07/02/2025 08:59:16 70.99, 40.12 48.02 07/02/2025 08:58:06 70.98, 40.20 48.01 3.34 70
4 07/02/2025 09:49:59 -70.96,-152.50 132.02 07/02/2025 09:49:07 -70.97,-152.57 132.00 2.57 52
5 07/02/2025 10:40:46 71.00, 14.74 48.03 07/02/2025 10:40:02 71.00, 14.75 48.04 0.32 44
6 07/02/2025 11:31:30 -71.02,-177.97 131.95 07/02/2025 11:31:02 -71.04,-177.92 131.93 3.24 28
7 07/02/2025 12:22:16 71.00, -10.64 48.04 07/02/2025 12:21:58 71.02, -10.69 48.06 2.84 18
8 07/02/2025 13:13:01 -71.07, 156.56 131.89 07/02/2025 13:12:58 -71.06, 156.63 131.90 2.65 3
9 07/02/2025 14:03:47 71.06, -36.11 48.10 07/02/2025 14:03:54 71.04, -36.14 48.09 2.14 7
10 07/02/2025 14:54:31 -71.07, 131.18 131.88 07/02/2025 14:54:54 -71.08, 131.18 131.88 0.87 23
11 07/02/2025 15:45:18 71.11, -61.58 48.17 07/02/2025 15:45:49 71.11, -61.49 48.16 3.01 31
12 07/02/2025 16:36:02 -71.13, 105.71 131.81 07/02/2025 16:36:50 -71.10, 105.74 131.85 3.11 48
13 07/02/2025 17:26:48 71.12, -86.96 48.18 07/02/2025 17:27:45 71.14, -86.94 48.19 2.21 57
14 07/02/2025 18:17:32 -71.13, 80.33 131.81 07/02/2025 18:18:46 -71.12, 80.29 131.83 1.85 74
15 07/02/2025 19:08:24 71.43,-112.88 48.52 07/02/2025 19:09:36 71.41,-111.92 48.45 34.15 72

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 6/19/2025
SNOs_Map_NOAA-21_NOAA-19_20250619.jpg

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

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