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: 7/17/2025
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 07/17/2025 21:35:47 70.22,-147.35 49.17 07/17/2025 21:35:21 70.25,-147.32 49.20 3.30 26
2 07/17/2025 22:25:17 -70.11, 20.13 130.93 07/17/2025 22:26:02 -70.13, 20.18 130.92 3.20 45
3 07/20/2025 13:02:48 -70.45, 161.22 130.13 07/20/2025 13:01:35 -70.52, 160.73 130.03 19.79 73
4 07/20/2025 13:52:17 70.23, -31.45 49.67 07/20/2025 13:52:16 70.22, -31.50 49.67 2.16 1
5 07/20/2025 14:41:47 -70.12, 136.03 130.43 07/20/2025 14:42:57 -70.10, 136.01 130.46 2.63 70
6 07/23/2025 05:19:21 -70.28, -83.14 129.76 07/23/2025 05:18:26 -70.28, -83.12 129.75 0.72 55
7 07/23/2025 06:08:48 70.18, 84.35 50.15 07/23/2025 06:09:11 70.20, 84.32 50.17 2.70 23
8 07/23/2025 06:58:31 -69.36,-109.15 130.62 07/23/2025 06:59:38 -69.34,-107.08 130.72 81.09 67
9 07/25/2025 21:35:51 -70.27, 32.72 129.20 07/25/2025 21:35:21 -70.26, 32.69 129.20 1.60 30
10 07/25/2025 22:25:18 70.16,-159.79 50.71 07/25/2025 22:26:05 70.13,-159.79 50.67 3.71 47
11 07/28/2025 13:02:50 70.40, -18.84 51.53 07/28/2025 13:01:37 70.48, -19.19 51.63 15.43 73
12 07/28/2025 13:52:20 -70.24, 148.57 128.61 07/28/2025 13:52:15 -70.25, 148.49 128.61 2.74 5
13 07/28/2025 14:41:47 70.13, -43.95 51.29 07/28/2025 14:42:59 70.11, -43.99 51.26 2.42 72

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 7/17/2025
SNOs_Map_LANDSAT-8_NPP_20250717.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 07/17/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP