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: 9/27/2025
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 09/30/2025 12:13:30 -71.16, 174.64 105.94 09/30/2025 12:12:23 -71.20, 172.18 105.88 88.42 67
2 09/30/2025 13:03:11 70.29, -19.03 73.21 09/30/2025 13:02:51 70.28, -18.98 73.20 2.53 20
3 09/30/2025 13:52:41 -70.18, 148.44 106.89 09/30/2025 13:53:34 -70.21, 148.44 106.86 3.50 53
4 10/03/2025 04:30:11 -70.35, -70.70 105.71 10/03/2025 04:29:05 -70.35, -70.64 105.71 2.04 66
5 10/03/2025 05:19:38 70.24, 96.79 74.20 10/03/2025 05:19:49 70.26, 96.80 74.22 2.17 11
6 10/03/2025 06:09:14 -69.80, -96.20 106.23 10/03/2025 06:10:24 -69.77, -95.13 106.26 41.13 70
7 10/05/2025 20:46:38 -70.32, 45.15 104.71 10/05/2025 20:46:04 -70.35, 45.13 104.68 3.15 34
8 10/05/2025 21:36:05 70.21,-147.37 75.19 10/05/2025 21:36:47 70.21,-147.34 75.20 0.80 42
9 10/08/2025 12:13:33 70.46, -6.38 76.45 10/08/2025 12:12:21 70.48, -6.63 76.47 9.70 72
10 10/08/2025 13:03:04 -70.30, 161.02 103.71 10/08/2025 13:03:02 -70.30, 160.97 103.71 1.83 2
11 10/08/2025 13:52:32 70.13, -31.58 76.14 10/08/2025 13:53:44 70.11, -31.43 76.12 6.09 72
12 10/11/2025 04:30:00 70.35, 109.35 77.34 10/11/2025 04:29:17 70.34, 109.35 77.34 0.35 43
13 10/11/2025 05:19:30 -70.24, -83.17 102.75 10/11/2025 05:20:00 -70.27, -83.21 102.73 3.21 30

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 9/27/2025
SNOs_Map_LANDSAT-8_NPP_20250928.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 09/27/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP