Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-20 and NOAA-19 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 3/13/2025
Index Date (NOAA-20) Time (NOAA-20) Lat,Lon (NOAA-20) SZA (NOAA-20 ) Date (NOAA-19) Time (NOAA-19) Lat,Lon (NOAA-19) SZA (NOAA-19 ) Distance(km) Time Diff (sec)
1 03/18/2025 18:53:05 -71.06, 71.16 108.26 03/18/2025 18:51:54 -71.03, 69.73 108.20 51.65 71
2 03/18/2025 19:43:59 71.45,-122.21 72.16 03/18/2025 19:42:47 71.44,-122.27 72.17 2.08 72
3 03/18/2025 20:34:43 -71.48, 45.05 107.83 03/18/2025 20:33:42 -71.47, 45.06 107.82 0.84 61
4 03/18/2025 21:25:30 71.51,-147.70 72.19 03/18/2025 21:24:43 71.48,-147.69 72.17 3.43 47
5 03/18/2025 22:16:13 -71.49, 19.66 107.85 03/18/2025 22:15:38 -71.51, 19.64 107.82 2.24 35
6 03/18/2025 23:07:00 71.52,-173.09 72.18 03/18/2025 23:06:39 71.52,-173.10 72.18 0.53 21
7 03/18/2025 23:57:44 -71.55, -5.83 107.81 03/18/2025 23:57:34 -71.55, -5.78 107.81 1.91 10
8 03/19/2025 00:48:30 71.53, 161.52 72.16 03/19/2025 00:48:35 71.55, 161.48 72.18 2.86 5
9 03/19/2025 01:39:14 -71.56, -31.22 107.83 03/19/2025 01:39:30 -71.58, -31.19 107.81 2.51 16
10 03/19/2025 02:30:01 71.59, 136.03 72.20 03/19/2025 02:30:31 71.59, 136.07 72.19 1.33 30
11 03/19/2025 03:20:44 -71.57, -56.61 107.84 03/19/2025 03:21:27 -71.57, -56.71 107.85 3.26 43
12 03/19/2025 04:11:31 71.60, 110.64 72.18 03/19/2025 04:12:27 71.63, 110.65 72.20 2.89 56
13 03/19/2025 05:02:15 -71.63, -82.10 107.80 03/19/2025 05:03:23 -71.61, -82.12 107.85 3.28 68
14 03/19/2025 05:53:07 71.92, 84.67 72.50 03/19/2025 05:54:19 71.87, 85.63 72.39 33.51 72
15 03/19/2025 06:43:59 -72.36,-108.85 107.04 03/19/2025 06:45:06 -72.30,-106.25 107.24 88.20 67

Figure of NOAA-20 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 3/13/2025
SNOs_Map_NOAA-20_NOAA-19_20250313.jpg

Download SNOs between NOAA-20 and NOAA-19 since TLE EPOCH: 03/13/2025 in txt file.

Historial Predications of SNOs between NOAA-20 and NOAA-19