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: 4/10/2025
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 04/19/2025 23:57:31 -70.82, -4.56 120.74 04/19/2025 23:56:20 -70.79, -6.11 120.70 56.95 71
2 04/20/2025 00:48:26 71.29, 161.96 59.75 04/20/2025 00:47:11 71.27, 161.98 59.74 1.78 75
3 04/20/2025 01:39:10 -71.29, -30.73 120.27 04/20/2025 01:38:07 -71.28, -30.73 120.26 0.62 63
4 04/20/2025 02:29:56 71.29, 136.58 59.72 04/20/2025 02:29:07 71.30, 136.55 59.75 2.02 49
5 04/20/2025 03:20:41 -71.34, -56.19 120.24 04/20/2025 03:20:03 -71.31, -56.16 120.26 3.24 38
6 04/20/2025 04:11:27 71.34, 111.12 59.75 04/20/2025 04:11:03 71.33, 111.12 59.75 0.85 24
7 04/20/2025 05:02:11 -71.34, -81.57 120.26 04/20/2025 05:01:59 -71.35, -81.59 120.26 0.83 12
8 04/20/2025 05:52:57 71.34, 85.74 59.73 04/20/2025 05:52:59 71.36, 85.69 59.75 2.98 2
9 04/20/2025 06:43:42 -71.39,-107.04 120.23 04/20/2025 06:43:55 -71.38,-107.02 120.25 2.20 13
10 04/20/2025 07:34:28 71.39, 60.27 59.76 04/20/2025 07:34:55 71.39, 60.26 59.76 0.44 27
11 04/20/2025 08:25:12 -71.39,-132.41 120.26 04/20/2025 08:25:51 -71.41,-132.45 120.25 1.81 39
12 04/20/2025 09:15:59 71.45, 34.81 59.79 04/20/2025 09:16:51 71.42, 34.83 59.76 2.80 52
13 04/20/2025 10:06:43 -71.45,-157.88 120.22 04/20/2025 10:07:47 -71.44,-157.88 120.25 1.23 64
14 04/20/2025 10:57:32 71.60, 9.15 59.93 04/20/2025 10:58:45 71.55, 9.59 59.86 16.36 73
15 04/20/2025 11:48:24 -72.01, 175.71 119.65 04/20/2025 11:49:33 -71.97, 177.66 119.76 67.18 69

Figure of NOAA-20 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 4/10/2025
SNOs_Map_NOAA-20_NOAA-19_20250410.jpg

Download SNOs between NOAA-20 and NOAA-19 since TLE EPOCH: 04/10/2025 in txt file.

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