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: 7/18/2025
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 -70.46, 161.24 130.12 07/20/2025 13:01:35 -70.50, 160.76 130.05 18.61 73
2 07/20/2025 13:52:18 70.20, -31.50 49.64 07/20/2025 13:52:16 70.20, -31.47 49.65 1.52 2
3 07/20/2025 14:41:48 -70.09, 135.97 130.46 07/20/2025 14:42:57 -70.09, 136.03 130.47 2.19 69
4 07/23/2025 05:19:21 -70.30, -83.11 129.74 07/23/2025 05:18:27 -70.32, -83.18 129.71 3.03 54
5 07/23/2025 06:08:48 70.19, 84.38 50.17 07/23/2025 06:09:11 70.18, 84.35 50.16 2.04 23
6 07/23/2025 06:58:32 -69.32,-109.20 130.65 07/23/2025 06:59:39 -69.37,-107.13 130.68 81.17 67
7 07/25/2025 21:35:51 -70.24, 32.67 129.23 07/25/2025 21:35:20 -70.25, 32.72 129.22 1.90 31
8 07/25/2025 22:25:18 70.13,-159.84 50.68 07/25/2025 22:26:04 70.11,-159.76 50.65 3.54 46
9 07/28/2025 13:02:49 70.42, -18.81 51.55 07/28/2025 13:01:36 70.46, -19.16 51.61 13.65 73
10 07/28/2025 13:52:21 -70.21, 148.52 128.64 07/28/2025 13:52:15 -70.23, 148.52 128.62 1.87 6
11 07/28/2025 14:41:48 70.10, -44.00 51.26 07/28/2025 14:42:59 70.09, -43.96 51.25 1.45 71
12 07/31/2025 05:19:21 70.27, 96.86 52.06 07/31/2025 05:18:28 70.29, 96.89 52.08 2.10 53
13 07/31/2025 06:08:51 -70.17, -95.65 128.03 07/31/2025 06:09:09 -70.16, -95.60 128.05 2.28 18

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 7/18/2025
SNOs_Map_LANDSAT-8_NPP_20250718.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 07/18/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP