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: 9/28/2025
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 -71.15, 174.62 105.95 09/30/2025 12:12:23 -71.21, 172.16 105.87 88.65 67
2 09/30/2025 13:03:11 70.28, -19.04 73.20 09/30/2025 13:02:51 70.29, -19.00 73.21 1.68 20
3 09/30/2025 13:52:41 -70.17, 148.43 106.90 09/30/2025 13:53:33 -70.17, 148.50 106.90 2.85 52
4 10/03/2025 04:30:11 -70.34, -70.71 105.72 10/03/2025 04:29:05 -70.36, -70.66 105.70 3.22 66
5 10/03/2025 05:19:37 70.29, 96.86 74.25 10/03/2025 05:19:49 70.27, 96.79 74.23 3.20 12
6 10/03/2025 06:09:14 -69.79, -96.21 106.24 10/03/2025 06:10:24 -69.79, -95.15 106.25 40.84 70
7 10/05/2025 20:46:38 -70.31, 45.14 104.72 10/05/2025 20:46:03 -70.31, 45.19 104.72 2.11 35
8 10/05/2025 21:36:05 70.20,-147.38 75.19 10/05/2025 21:36:47 70.22,-147.36 75.21 2.14 42
9 10/08/2025 12:13:33 70.46, -6.38 76.44 10/08/2025 12:12:21 70.49, -6.66 76.48 10.80 72
10 10/08/2025 13:03:04 -70.30, 161.01 103.71 10/08/2025 13:03:02 -70.31, 160.94 103.69 3.19 2
11 10/08/2025 13:52:32 70.13, -31.59 76.14 10/08/2025 13:53:44 70.13, -31.45 76.14 5.10 72
12 10/11/2025 04:30:00 70.35, 109.35 77.35 10/11/2025 04:29:17 70.36, 109.33 77.36 1.42 43
13 10/11/2025 05:19:30 -70.24, -83.17 102.75 10/11/2025 05:19:59 -70.23, -83.15 102.76 1.48 29

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 9/28/2025
SNOs_Map_LANDSAT-8_NPP_20250929.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 09/28/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP