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: 7/19/2025
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 07/20/2025 13:02:48 -70.43, 161.20 130.15 07/20/2025 13:01:35 -70.53, 160.71 130.02 21.09 73
2 07/20/2025 13:52:17 70.22, -31.47 49.66 07/20/2025 13:52:16 70.23, -31.51 49.68 2.03 1
3 07/20/2025 14:41:47 -70.11, 136.01 130.44 07/20/2025 14:42:57 -70.11, 135.99 130.44 0.89 70
4 07/23/2025 05:19:21 -70.27, -83.16 129.77 07/23/2025 05:18:26 -70.30, -83.14 129.73 2.69 55
5 07/23/2025 06:08:48 70.17, 84.33 50.14 07/23/2025 06:09:10 70.15, 84.38 50.13 2.24 22
6 07/23/2025 06:58:31 -69.34,-109.17 130.63 07/23/2025 06:59:38 -69.35,-107.10 130.71 81.01 67
7 07/25/2025 21:35:51 -70.26, 32.71 129.21 07/25/2025 21:35:21 -70.28, 32.67 129.18 2.13 30
8 07/25/2025 22:25:18 70.15,-159.80 50.70 07/25/2025 22:26:05 70.14,-159.81 50.68 1.69 47
9 07/28/2025 13:02:50 70.39, -18.85 51.53 07/28/2025 13:01:37 70.49, -19.21 51.64 16.77 73
10 07/28/2025 13:52:21 -70.24, 148.56 128.62 07/28/2025 13:52:15 -70.21, 148.56 128.65 3.39 6
11 07/28/2025 14:41:48 70.12, -43.96 51.29 07/28/2025 14:43:00 70.12, -44.01 51.28 1.81 72
12 07/31/2025 05:19:20 70.30, 96.90 52.08 07/31/2025 05:18:28 70.32, 96.84 52.11 3.07 52
13 07/31/2025 06:08:50 -70.20, -95.61 128.01 07/31/2025 06:09:09 -70.20, -95.65 128.01 1.37 19

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 7/19/2025
SNOs_Map_LANDSAT-8_NPP_20250719.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 07/19/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP