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: 7/30/2025
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 07/31/2025 05:19:20 70.27, 96.86 52.05 07/31/2025 05:18:28 70.29, 96.88 52.08 2.49 52
2 07/31/2025 06:08:50 -70.16, -95.67 128.05 07/31/2025 06:09:09 -70.18, -95.62 128.03 3.14 19
3 07/31/2025 06:58:32 69.23, 70.70 51.09 07/31/2025 06:59:38 69.24, 73.08 51.00 93.88 66
4 08/02/2025 21:35:49 70.24,-147.29 52.71 08/02/2025 21:35:22 70.24,-147.25 52.71 1.54 27
5 08/02/2025 22:25:19 -70.13, 20.18 127.39 08/02/2025 22:26:03 -70.13, 20.24 127.41 2.45 44
6 08/05/2025 13:02:47 -70.47, 161.28 126.38 08/05/2025 13:01:34 -70.49, 160.82 126.33 17.09 73
7 08/05/2025 13:52:17 70.20, -31.47 53.38 08/05/2025 13:52:15 70.20, -31.40 53.37 2.72 2
8 08/05/2025 14:41:46 -70.15, 136.08 126.67 08/05/2025 14:42:57 -70.13, 136.02 126.69 3.02 71
9 08/08/2025 05:19:18 -70.30, -83.08 125.79 08/08/2025 05:18:25 -70.29, -83.08 125.80 1.07 53
10 08/08/2025 06:08:45 70.19, 84.40 54.11 08/08/2025 06:09:10 70.21, 84.36 54.13 2.71 25
11 08/08/2025 06:58:30 -69.26,-109.24 126.76 08/08/2025 06:59:36 -69.29,-106.96 126.82 89.81 66
12 08/10/2025 20:46:01 71.20,-133.45 55.84 08/10/2025 20:44:55 71.27,-136.23 56.01 99.69 66
13 08/10/2025 21:35:46 -70.28, 32.77 125.04 08/10/2025 21:35:19 -70.25, 32.77 125.06 2.58 27
14 08/10/2025 22:25:13 70.16,-159.75 54.86 08/10/2025 22:26:04 70.17,-159.81 54.87 2.68 51

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 7/30/2025
SNOs_Map_LANDSAT-8_NPP_20250730.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 07/30/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP