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: 6/24/2025
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 70.23, 66.73 47.21 07/02/2025 07:16:24 70.25, 64.47 47.34 84.98 68
2 07/02/2025 08:08:27 -70.84,-126.92 132.15 07/02/2025 08:07:13 -70.86,-127.27 132.10 12.85 74
3 07/02/2025 08:59:16 70.97, 40.16 48.00 07/02/2025 08:58:07 70.95, 40.15 47.98 2.87 69
4 07/02/2025 09:50:00 -71.00,-152.56 131.98 07/02/2025 09:49:07 -70.99,-152.53 131.98 1.54 53
5 07/02/2025 10:40:46 70.98, 14.78 48.01 07/02/2025 10:40:03 70.97, 14.70 48.01 2.82 43
6 07/02/2025 11:31:30 -71.00,-177.94 131.97 07/02/2025 11:31:03 -71.01,-177.98 131.95 1.58 27
7 07/02/2025 12:22:17 71.03, -10.69 48.07 07/02/2025 12:21:58 71.04, -10.65 48.08 1.82 19
8 07/02/2025 13:13:01 -71.06, 156.59 131.90 07/02/2025 13:12:59 -71.03, 156.57 131.93 2.98 2
9 07/02/2025 14:03:47 71.04, -36.07 48.08 07/02/2025 14:03:54 71.07, -36.10 48.11 3.31 7
10 07/02/2025 14:54:31 -71.06, 131.21 131.90 07/02/2025 14:54:55 -71.05, 131.13 131.90 3.07 24
11 07/02/2025 15:45:18 71.09, -61.54 48.15 07/02/2025 15:45:50 71.09, -61.54 48.13 0.59 32
12 07/02/2025 16:36:02 -71.12, 105.74 131.83 07/02/2025 16:36:50 -71.12, 105.77 131.83 1.50 48
13 07/02/2025 17:26:48 71.10, -86.92 48.16 07/02/2025 17:27:46 71.11, -86.99 48.16 2.75 58
14 07/02/2025 18:17:32 -71.12, 80.36 131.82 07/02/2025 18:18:46 -71.14, 80.33 131.81 3.13 74
15 07/02/2025 19:08:25 71.46,-112.94 48.55 07/02/2025 19:09:36 71.44,-111.88 48.47 37.64 71

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 6/24/2025
SNOs_Map_NOAA-21_NOAA-19_20250624.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 06/24/2025 in txt file.

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