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: 4/14/2025
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 23:57:30 -70.82, -4.55 120.74 04/19/2025 23:56:19 -70.82, -6.08 120.67 55.67 71
2 04/20/2025 00:48:25 71.28, 161.97 59.74 04/20/2025 00:47:10 71.30, 162.03 59.77 3.10 75
3 04/20/2025 01:39:09 -71.29, -30.72 120.27 04/20/2025 01:38:06 -71.31, -30.69 120.24 2.53 63
4 04/20/2025 02:29:55 71.28, 136.60 59.71 04/20/2025 02:29:07 71.28, 136.51 59.72 3.23 48
5 04/20/2025 03:20:40 -71.34, -56.19 120.24 04/20/2025 03:20:02 -71.34, -56.12 120.24 2.38 38
6 04/20/2025 04:11:26 71.33, 111.13 59.75 04/20/2025 04:11:03 71.31, 111.08 59.73 3.28 23
7 04/20/2025 05:02:10 -71.34, -81.56 120.27 04/20/2025 05:01:58 -71.37, -81.55 120.23 3.23 12
8 04/20/2025 05:52:57 71.39, 85.66 59.78 04/20/2025 05:52:58 71.39, 85.74 59.78 2.78 1
9 04/20/2025 06:43:41 -71.39,-107.03 120.23 04/20/2025 06:43:54 -71.40,-106.98 120.23 1.97 13
10 04/20/2025 07:34:27 71.39, 60.29 59.75 04/20/2025 07:34:55 71.37, 60.22 59.73 3.18 28
11 04/20/2025 08:25:12 -71.44,-132.50 120.20 04/20/2025 08:25:50 -71.43,-132.41 120.23 3.57 38
12 04/20/2025 09:15:58 71.44, 34.82 59.78 04/20/2025 09:16:50 71.45, 34.88 59.79 2.50 52
13 04/20/2025 10:06:42 -71.44,-157.87 120.23 04/20/2025 10:07:46 -71.46,-157.84 120.22 2.11 64
14 04/20/2025 10:57:31 71.60, 9.16 59.93 04/20/2025 10:58:44 71.58, 9.64 59.89 16.82 73
15 04/20/2025 11:48:23 -72.01, 175.71 119.65 04/20/2025 11:49:32 -72.00, 177.70 119.74 68.36 69

Figure of NOAA-20 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 4/14/2025
SNOs_Map_NOAA-20_NOAA-19_20250414.jpg

Download SNOs between NOAA-20 and NOAA-19 since TLE EPOCH: 04/14/2025 in txt file.

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