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: 3/5/2025
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 02:32:04 70.86, 137.22 74.58 03/11/2025 02:30:57 70.86, 134.54 74.73 97.47 67
2 03/11/2025 03:22:57 -71.35, -56.29 104.93 03/11/2025 03:21:45 -71.33, -57.36 104.87 37.95 72
3 03/11/2025 04:13:49 71.65, 110.48 75.39 03/11/2025 04:12:38 71.67, 110.52 75.42 2.28 71
4 03/11/2025 05:04:32 -71.66, -82.23 104.62 03/11/2025 05:03:34 -71.68, -82.20 104.59 1.87 58
5 03/11/2025 05:55:18 71.66, 85.09 75.37 03/11/2025 05:54:34 71.65, 85.01 75.38 2.87 44
6 03/11/2025 06:46:03 -71.72,-107.71 104.58 03/11/2025 06:45:30 -71.71,-107.61 104.59 3.26 33
7 03/11/2025 07:36:49 71.71, 59.61 75.40 03/11/2025 07:36:30 71.69, 59.60 75.39 2.32 19
8 03/11/2025 08:27:33 -71.72,-133.09 104.61 03/11/2025 08:27:27 -71.70,-133.12 104.62 2.75 6
9 03/11/2025 09:18:19 71.72, 34.23 75.38 03/11/2025 09:18:26 71.73, 34.19 75.39 1.99 7
10 03/11/2025 10:09:03 -71.73,-158.48 104.63 03/11/2025 10:09:23 -71.74,-158.54 104.62 2.37 20
11 03/11/2025 10:59:50 71.78, 8.75 75.41 03/11/2025 11:00:22 71.77, 8.78 75.40 1.20 32
12 03/11/2025 11:50:34 -71.79, 176.05 104.59 03/11/2025 11:51:19 -71.78, 176.05 104.61 1.02 45
13 03/11/2025 12:41:20 71.78, -16.64 75.39 03/11/2025 12:42:18 71.81, -16.63 75.41 3.02 58
14 03/11/2025 13:32:04 -71.79, 150.66 104.62 03/11/2025 13:33:15 -71.82, 150.64 104.61 2.71 71
15 03/11/2025 14:22:58 72.20, -42.80 75.82 03/11/2025 14:24:08 72.15, -41.45 75.69 46.41 70

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 3/5/2025
SNOs_Map_NOAA-21_NOAA-19_20250305.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 03/05/2025 in txt file.

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