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: 4/28/2025
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 -70.06, 120.32 124.69 04/29/2025 15:43:29 -70.04, 120.34 124.72 2.33 50
2 04/29/2025 16:33:23 69.95, -72.20 55.18 04/29/2025 16:32:56 69.93, -72.16 55.17 1.99 27
3 04/29/2025 17:23:48 -68.95, 96.55 125.86 04/29/2025 17:22:41 -69.00, 94.22 125.75 93.29 67
4 05/02/2025 07:09:09 70.90, 67.42 55.39 05/02/2025 07:10:16 70.77, 69.65 55.20 82.85 67
5 05/02/2025 07:59:36 -70.01,-123.84 125.56 05/02/2025 07:59:58 -70.00,-123.84 125.57 0.70 22
6 05/02/2025 08:50:20 69.90, 43.63 54.33 05/02/2025 08:49:25 69.89, 43.66 54.32 1.42 55
7 05/04/2025 23:25:51 70.08,-175.50 53.75 05/04/2025 23:26:56 70.08,-175.47 53.75 1.23 65
8 05/05/2025 00:16:33 -69.97, -8.02 126.38 05/05/2025 00:16:26 -69.98, -7.99 126.37 1.27 7
9 05/05/2025 01:07:10 69.50, 159.99 53.13 05/05/2025 01:05:59 69.53, 159.05 53.19 37.03 71
10 05/07/2025 15:42:46 70.00, -59.62 52.92 05/07/2025 15:43:23 70.01, -59.69 52.93 3.22 37
11 05/07/2025 16:33:29 -69.94, 107.79 127.16 05/07/2025 16:32:53 -69.90, 107.79 127.19 3.70 36
12 05/10/2025 07:09:07 -70.49,-111.93 127.28 05/10/2025 07:10:17 -70.39,-110.91 127.41 39.87 70
13 05/10/2025 07:59:43 69.98, 56.17 52.19 05/10/2025 07:59:49 70.00, 56.18 52.20 2.13 6
14 05/10/2025 08:50:25 -69.87,-136.33 127.95 05/10/2025 08:49:19 -69.90,-136.33 127.91 3.67 66

Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/28/2025
SNOs_Map_NOAA-20_LANDSAT-9_20250428.jpg

Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 04/28/2025 in txt file.

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