Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between LANDSAT-8 and NPP Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 7/21/2025
Index Date (LANDSAT-8) Time (LANDSAT-8) Lat,Lon (LANDSAT-8) SZA (LANDSAT-8 ) Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Distance(km) Time Diff (sec)
1 07/23/2025 05:19:20 -70.32, -83.09 129.72 07/23/2025 05:18:26 -70.30, -83.15 129.73 2.86 54
2 07/23/2025 06:08:48 70.16, 84.33 50.14 07/23/2025 06:09:10 70.16, 84.38 50.13 2.12 22
3 07/23/2025 06:58:31 -69.34,-109.18 130.64 07/23/2025 06:59:38 -69.36,-107.11 130.70 81.26 67
4 07/25/2025 21:35:51 -70.25, 32.69 129.22 07/25/2025 21:35:20 -70.23, 32.75 129.24 3.19 31
5 07/25/2025 22:25:18 70.14,-159.82 50.69 07/25/2025 22:26:05 70.14,-159.81 50.68 0.48 47
6 07/28/2025 13:02:49 70.43, -18.79 51.56 07/28/2025 13:01:37 70.49, -19.20 51.64 16.47 72
7 07/28/2025 13:52:21 -70.22, 148.53 128.64 07/28/2025 13:52:15 -70.21, 148.55 128.64 1.37 6
8 07/28/2025 14:41:48 70.11, -43.98 51.27 07/28/2025 14:43:00 70.12, -44.01 51.28 1.85 72
9 07/31/2025 05:19:21 70.28, 96.86 52.06 07/31/2025 05:18:28 70.26, 96.93 52.05 2.73 53
10 07/31/2025 06:08:51 -70.17, -95.65 128.03 07/31/2025 06:09:10 -70.20, -95.65 128.01 2.30 19
11 07/31/2025 06:58:32 69.23, 70.70 51.09 07/31/2025 06:59:38 69.26, 73.04 51.02 92.31 66
12 08/02/2025 21:35:49 70.27,-147.26 52.73 08/02/2025 21:35:22 70.26,-147.28 52.72 1.69 27
13 08/02/2025 22:25:19 -70.17, 20.23 127.36 08/02/2025 22:26:04 -70.18, 20.15 127.35 3.38 45

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 7/21/2025
SNOs_Map_LANDSAT-8_NPP_20250721.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 07/21/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP