Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-20 and LANDSAT-9 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 (LANDSAT-9) Time (LANDSAT-9) Lat,Lon (LANDSAT-9) SZA (LANDSAT-9 ) Distance(km) Time Diff (sec)
1 04/29/2025 15:42:39 -70.05, 120.33 124.70 04/29/2025 15:43:29 -70.05, 120.36 124.71 0.95 50
2 04/29/2025 16:33:23 69.94, -72.19 55.17 04/29/2025 16:32:56 69.95, -72.14 55.18 2.00 27
3 04/29/2025 17:23:48 -68.94, 96.56 125.87 04/29/2025 17:22:41 -69.01, 94.23 125.74 93.33 67
4 05/02/2025 07:09:09 70.89, 67.43 55.38 05/02/2025 07:10:16 70.79, 69.68 55.21 82.85 67
5 05/02/2025 07:59:36 -70.00,-123.83 125.57 05/02/2025 07:59:58 -70.02,-123.81 125.55 2.46 22
6 05/02/2025 08:50:20 69.89, 43.64 54.32 05/02/2025 08:49:25 69.91, 43.68 54.34 2.59 55
7 05/04/2025 23:25:50 70.07,-175.49 53.74 05/04/2025 23:26:56 70.05,-175.52 53.72 2.27 66
8 05/05/2025 00:16:32 -69.96, -8.01 126.39 05/05/2025 00:16:26 -69.95, -8.04 126.40 1.98 6
9 05/05/2025 01:07:09 69.49, 160.00 53.12 05/05/2025 01:05:58 69.56, 159.08 53.21 36.71 71
10 05/07/2025 15:42:47 70.05, -59.69 52.97 05/07/2025 15:43:23 70.04, -59.65 52.96 1.59 36
11 05/07/2025 16:33:29 -69.93, 107.80 127.16 05/07/2025 16:32:53 -69.94, 107.84 127.16 1.49 36
12 05/10/2025 07:09:07 -70.49,-111.93 127.28 05/10/2025 07:10:18 -70.38,-110.92 127.42 39.27 71
13 05/10/2025 07:59:43 69.98, 56.18 52.19 05/10/2025 07:59:50 69.99, 56.16 52.19 1.12 7
14 05/10/2025 08:50:25 -69.86,-136.33 127.95 05/10/2025 08:49:20 -69.89,-136.35 127.92 2.91 65

Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/27/2025
SNOs_Map_NOAA-20_LANDSAT-9_20250427.jpg

Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 04/27/2025 in txt file.

Historial Predications of SNOs between NOAA-20 and LANDSAT-9