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: 3/8/2025
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 03/11/2025 03:22:57 -71.37, -56.33 104.90 03/11/2025 03:21:44 -71.37, -57.29 104.84 34.10 73
2 03/11/2025 04:13:49 71.67, 110.44 75.41 03/11/2025 04:12:38 71.66, 110.50 75.41 2.31 71
3 03/11/2025 05:04:33 -71.68, -82.27 104.59 03/11/2025 05:03:35 -71.66, -82.23 104.60 2.57 58
4 03/11/2025 05:55:19 71.67, 85.06 75.39 03/11/2025 05:54:34 71.70, 85.08 75.42 2.53 45
5 03/11/2025 06:46:03 -71.69,-107.65 104.62 03/11/2025 06:45:31 -71.70,-107.64 104.60 1.55 32
6 03/11/2025 07:36:50 71.73, 59.58 75.42 03/11/2025 07:36:30 71.73, 59.67 75.42 3.35 20
7 03/11/2025 08:27:34 -71.75,-133.13 104.58 03/11/2025 08:27:27 -71.74,-133.05 104.59 2.80 7
8 03/11/2025 09:18:20 71.74, 34.19 75.40 03/11/2025 09:18:27 71.72, 34.17 75.39 1.90 7
9 03/11/2025 10:09:04 -71.75,-158.51 104.60 03/11/2025 10:09:24 -71.73,-158.56 104.63 3.05 20
10 03/11/2025 10:59:50 71.74, 8.81 75.38 03/11/2025 11:00:23 71.76, 8.76 75.39 2.76 33
11 03/11/2025 11:50:34 -71.76, 176.10 104.63 03/11/2025 11:51:20 -71.77, 176.03 104.62 2.76 46
12 03/11/2025 12:41:21 71.80, -16.67 75.41 03/11/2025 12:42:19 71.80, -16.65 75.40 0.59 58
13 03/11/2025 13:32:05 -71.81, 150.62 104.59 03/11/2025 13:33:16 -71.80, 150.62 104.62 1.05 71
14 03/11/2025 14:22:58 72.17, -42.74 75.78 03/11/2025 14:24:09 72.14, -41.47 75.68 43.36 71

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 3/8/2025
SNOs_Map_NOAA-21_NOAA-19_20250308.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 03/08/2025 in txt file.

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