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: 4/27/2025
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 05/06/2025 05:02:19 -70.87, -80.82 125.78 05/06/2025 05:01:07 -70.82, -81.95 125.78 41.72 72
2 05/06/2025 05:53:11 71.20, 85.94 54.56 05/06/2025 05:51:56 71.19, 85.98 54.56 1.53 75
3 05/06/2025 06:43:55 -71.18,-106.73 125.47 05/06/2025 06:42:56 -71.20,-106.76 125.44 2.16 59
4 05/06/2025 07:34:41 71.20, 60.56 54.54 05/06/2025 07:33:52 71.22, 60.54 54.57 2.42 49
5 05/06/2025 08:25:26 -71.24,-132.20 125.43 05/06/2025 08:24:52 -71.23,-132.19 125.44 1.04 34
6 05/06/2025 09:16:12 71.25, 35.09 54.58 05/06/2025 09:15:48 71.25, 35.11 54.58 0.91 24
7 05/06/2025 10:06:56 -71.24,-157.57 125.45 05/06/2025 10:06:48 -71.26,-157.63 125.43 2.63 8
8 05/06/2025 10:57:42 71.26, 9.71 54.56 05/06/2025 10:57:44 71.27, 9.67 54.58 2.53 2
9 05/06/2025 11:48:27 -71.29, 176.96 125.41 05/06/2025 11:48:44 -71.28, 176.94 125.42 1.25 17
10 05/06/2025 12:39:12 71.31, -15.76 54.60 05/06/2025 12:39:39 71.30, -15.77 54.59 0.96 27
11 05/06/2025 13:29:56 -71.30, 151.58 125.43 05/06/2025 13:30:39 -71.31, 151.51 125.42 3.19 43
12 05/06/2025 14:20:42 71.31, -41.14 54.58 05/06/2025 14:21:35 71.33, -41.20 54.59 2.88 53
13 05/06/2025 15:11:27 -71.35, 126.11 125.39 05/06/2025 15:12:35 -71.34, 126.07 125.41 1.77 68
14 05/06/2025 16:02:16 71.52, -66.88 54.78 05/06/2025 16:03:29 71.46, -66.45 54.69 16.99 73
15 05/06/2025 16:53:11 -72.07, 99.41 124.64 05/06/2025 16:54:18 -72.03, 101.89 124.78 85.02 67

Figure of NOAA-20 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 4/27/2025
SNOs_Map_NOAA-20_NOAA-19_20250427.jpg

Download SNOs between NOAA-20 and NOAA-19 since TLE EPOCH: 04/27/2025 in txt file.

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