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: 3/9/2025
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 70.87, 137.21 74.58 03/11/2025 02:30:57 70.86, 134.54 74.73 97.15 67
2 03/11/2025 03:22:57 -71.36, -56.31 104.92 03/11/2025 03:21:45 -71.33, -57.36 104.87 37.62 72
3 03/11/2025 04:13:49 71.65, 110.47 75.39 03/11/2025 04:12:38 71.67, 110.52 75.42 2.34 71
4 03/11/2025 05:04:33 -71.67, -82.24 104.61 03/11/2025 05:03:35 -71.67, -82.21 104.59 1.41 58
5 03/11/2025 05:55:19 71.66, 85.08 75.37 03/11/2025 05:54:35 71.66, 85.01 75.38 2.57 44
6 03/11/2025 06:46:03 -71.68,-107.63 104.63 03/11/2025 06:45:32 -71.66,-107.72 104.63 3.40 31
7 03/11/2025 07:36:50 71.72, 59.60 75.41 03/11/2025 07:36:31 71.70, 59.60 75.39 2.47 19
8 03/11/2025 08:27:34 -71.73,-133.11 104.60 03/11/2025 08:27:27 -71.75,-133.03 104.58 3.34 7
9 03/11/2025 09:18:20 71.72, 34.22 75.38 03/11/2025 09:18:27 71.73, 34.19 75.40 1.63 7
10 03/11/2025 10:09:04 -71.74,-158.49 104.62 03/11/2025 10:09:24 -71.74,-158.54 104.62 1.68 20
11 03/11/2025 10:59:51 71.78, 8.74 75.42 03/11/2025 11:00:23 71.77, 8.78 75.40 1.58 32
12 03/11/2025 11:50:34 -71.80, 176.03 104.58 03/11/2025 11:51:19 -71.78, 176.05 104.61 2.19 45
13 03/11/2025 12:41:20 71.79, -16.65 75.40 03/11/2025 12:42:18 71.81, -16.63 75.41 2.90 58
14 03/11/2025 13:32:04 -71.80, 150.64 104.61 03/11/2025 13:33:15 -71.81, 150.64 104.61 1.56 71
15 03/11/2025 14:22:58 72.20, -42.81 75.82 03/11/2025 14:24:08 72.15, -41.44 75.69 46.78 70

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 3/9/2025
SNOs_Map_NOAA-21_NOAA-19_20250309.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 03/09/2025 in txt file.

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