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: 3/31/2025
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 04/03/2025 18:52:31 -70.76, 71.78 114.86 04/03/2025 18:51:22 -70.76, 69.75 114.76 74.34 69
2 04/03/2025 19:43:28 71.32,-121.86 65.72 04/03/2025 19:42:14 71.29,-122.07 65.72 7.96 74
3 04/03/2025 20:34:12 -71.35, 45.41 114.27 04/03/2025 20:33:07 -71.36, 45.32 114.24 3.39 65
4 04/03/2025 21:24:59 71.39,-147.35 65.76 04/03/2025 21:24:09 71.38,-147.40 65.77 1.93 50
5 04/03/2025 22:15:43 -71.41, 19.92 114.23 04/03/2025 22:15:03 -71.39, 19.89 114.24 2.68 40
6 04/03/2025 23:06:29 71.40,-172.75 65.75 04/03/2025 23:06:05 71.41,-172.82 65.77 3.04 24
7 04/03/2025 23:57:13 -71.42, -5.47 114.24 04/03/2025 23:56:59 -71.42, -5.53 114.24 1.94 14
8 04/04/2025 00:48:00 71.46, 161.76 65.79 04/04/2025 00:48:01 71.45, 161.75 65.77 2.14 1
9 04/04/2025 01:38:43 -71.44, -30.87 114.25 04/04/2025 01:38:55 -71.46, -30.95 114.23 3.53 12
10 04/04/2025 02:29:30 71.48, 136.37 65.78 04/04/2025 02:29:57 71.48, 136.33 65.78 1.30 27
11 04/04/2025 03:20:13 -71.50, -56.36 114.21 04/04/2025 03:20:50 -71.49, -56.38 114.23 1.53 37
12 04/04/2025 04:10:59 71.49, 110.97 65.77 04/04/2025 04:11:52 71.51, 110.91 65.78 3.26 53
13 04/04/2025 05:01:43 -71.51, -81.76 114.23 04/04/2025 05:02:46 -71.52, -81.80 114.23 1.71 63
14 04/04/2025 05:52:33 71.71, 85.20 65.97 04/04/2025 05:53:46 71.65, 85.68 65.88 18.13 73
15 04/04/2025 06:43:23 -72.04,-108.10 113.69 04/04/2025 06:44:33 -72.01,-106.35 113.80 60.37 70

Figure of NOAA-20 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 3/31/2025
SNOs_Map_NOAA-20_NOAA-19_20250331.jpg

Download SNOs between NOAA-20 and NOAA-19 since TLE EPOCH: 03/31/2025 in txt file.

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