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: 8/4/2025
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 08/05/2025 13:02:50 -70.68, 161.56 126.18 08/05/2025 13:01:39 -70.74, 160.43 126.07 42.19 71
2 08/05/2025 13:52:23 70.25, -31.43 53.42 08/05/2025 13:52:16 70.23, -31.45 53.41 2.62 7
3 08/05/2025 14:41:53 -70.14, 136.05 126.68 08/05/2025 14:42:57 -70.11, 136.04 126.71 2.66 64
4 08/08/2025 05:19:27 -70.34, -83.06 125.75 08/08/2025 05:18:26 -70.33, -83.13 125.76 3.38 61
5 08/08/2025 06:08:55 70.18, 84.36 54.11 08/08/2025 06:09:10 70.19, 84.40 54.11 1.53 15
6 08/08/2025 06:58:33 -69.64,-108.78 126.40 08/08/2025 06:59:43 -69.65,-107.47 126.45 50.46 70
7 08/10/2025 21:35:59 -70.27, 32.71 125.05 08/10/2025 21:35:20 -70.29, 32.71 125.03 2.15 39
8 08/10/2025 22:25:25 70.16,-159.80 54.86 08/10/2025 22:26:03 70.15,-159.77 54.85 1.66 38
9 08/13/2025 13:02:51 70.77, -18.30 56.23 08/13/2025 13:01:41 70.85, -19.74 56.36 53.24 70
10 08/13/2025 13:52:29 -70.23, 148.53 124.29 08/13/2025 13:52:13 -70.25, 148.55 124.26 2.82 16
11 08/13/2025 14:41:56 70.12, -43.99 55.62 08/13/2025 14:42:57 70.12, -43.94 55.62 1.81 61
12 08/16/2025 05:19:29 70.33, 96.92 56.63 08/16/2025 05:18:25 70.30, 96.93 56.62 2.73 64
13 08/16/2025 06:08:59 -70.23, -95.59 123.46 08/16/2025 06:09:07 -70.22, -95.62 123.46 1.13 8
14 08/16/2025 06:58:34 69.67, 71.27 56.03 08/16/2025 06:59:43 69.67, 72.52 55.98 48.11 69

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 8/4/2025
SNOs_Map_LANDSAT-8_NPP_20250804.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 08/04/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP