Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-20 and LANDSAT-8 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 7/27/2025
Index Date (NOAA-20) Time (NOAA-20) Lat,Lon (NOAA-20) SZA (NOAA-20 ) Date (LANDSAT-8) Time (LANDSAT-8) Lat,Lon (LANDSAT-8) SZA (LANDSAT-8 ) Distance(km) Time Diff (sec)
1 07/27/2025 23:01:42 -70.05, 10.69 128.93 07/27/2025 23:02:26 -70.04, 10.76 128.95 2.88 44
2 07/27/2025 23:52:26 69.91, 178.21 50.94 07/27/2025 23:51:53 69.93, 178.26 50.96 3.12 33
3 07/30/2025 14:28:08 70.79, -42.02 52.48 07/30/2025 14:29:15 70.69, -40.03 52.30 73.92 67
4 07/30/2025 15:18:36 -69.98, 126.58 128.37 07/30/2025 15:18:56 -69.98, 126.56 128.37 0.53 20
5 07/30/2025 16:09:21 69.90, -65.99 51.56 07/30/2025 16:08:23 69.87, -65.94 51.54 3.30 58
6 08/02/2025 06:44:49 70.04, 74.94 52.36 08/02/2025 06:45:55 70.07, 74.94 52.38 2.82 66
7 08/02/2025 07:35:31 -69.96,-117.63 127.71 08/02/2025 07:35:25 -69.96,-117.58 127.72 1.94 6
8 08/02/2025 08:26:09 69.52, 50.34 51.83 08/02/2025 08:24:57 69.57, 49.53 51.93 32.10 72
9 08/04/2025 23:01:43 70.04,-169.28 53.07 08/04/2025 23:02:23 70.02,-169.24 53.04 2.30 40
10 08/04/2025 23:52:24 -69.90, -1.76 127.07 08/04/2025 23:51:53 -69.92, -1.75 127.05 1.96 31
11 08/07/2025 14:28:06 -70.78, 138.00 125.42 08/07/2025 14:29:14 -70.68, 139.97 125.61 73.23 68
12 08/07/2025 15:18:37 69.98, -53.43 53.75 08/07/2025 15:18:52 69.96, -53.43 53.72 2.53 15
13 08/07/2025 16:09:18 -69.85, 114.10 126.39 08/07/2025 16:08:22 -69.86, 114.06 126.37 2.23 56

Figure of NOAA-20 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 7/27/2025
SNOs_Map_NOAA-20_LANDSAT-8_20250727.jpg

Download SNOs between NOAA-20 and LANDSAT-8 since TLE EPOCH: 07/27/2025 in txt file.

Historial Predications of SNOs between NOAA-20 and LANDSAT-8