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: 9/10/2025
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 09/11/2025 20:46:36 70.38,-134.77 66.08 09/11/2025 20:45:24 70.36,-134.80 66.06 2.81 72
2 09/11/2025 21:36:06 -70.27, 32.71 114.02 09/11/2025 21:36:06 -70.26, 32.67 114.03 2.21 0
3 09/11/2025 22:25:36 70.00,-160.03 65.73 09/11/2025 22:26:48 70.04,-159.68 65.76 13.87 72
4 09/14/2025 13:03:07 70.32, -18.97 67.05 09/14/2025 13:02:23 70.33, -19.01 67.06 1.63 44
5 09/14/2025 13:52:37 -70.22, 148.51 113.05 09/14/2025 13:53:05 -70.23, 148.48 113.04 1.30 28
6 09/17/2025 04:30:00 -71.01, -69.70 111.26 09/17/2025 04:28:52 -71.09, -71.80 111.15 76.41 68
7 09/17/2025 05:19:39 70.25, 96.80 68.00 09/17/2025 05:19:22 70.26, 96.86 68.02 2.84 17
8 09/17/2025 06:09:09 -70.15, -95.72 112.09 09/17/2025 06:10:04 -70.15, -95.64 112.09 2.81 55
9 09/19/2025 20:46:43 -70.33, 45.14 110.90 09/19/2025 20:45:38 -70.34, 45.19 110.89 2.19 65
10 09/19/2025 21:36:09 70.27,-147.30 69.06 09/19/2025 21:36:22 70.25,-147.36 69.04 3.32 13
11 09/19/2025 22:25:47 -69.73, 19.57 111.46 09/19/2025 22:26:57 -69.76, 20.70 111.45 43.51 70
12 09/22/2025 13:03:13 -70.34, 161.03 109.86 09/22/2025 13:02:38 -70.33, 160.97 109.86 2.47 35
13 09/22/2025 13:52:40 70.22, -31.49 70.05 09/22/2025 13:53:21 70.19, -31.51 70.02 3.44 41

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 9/10/2025
SNOs_Map_LANDSAT-8_NPP_20250911.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 09/10/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP