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: 8/26/2025
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 08/26/2025 22:25:27 70.16,-159.80 60.03 08/26/2025 22:26:15 70.14,-159.74 60.01 2.95 48
2 08/29/2025 13:02:59 70.33, -18.94 61.12 08/29/2025 13:01:50 70.33, -18.92 61.13 0.68 69
3 08/29/2025 13:52:29 -70.22, 148.53 118.98 08/29/2025 13:52:32 -70.25, 148.53 118.95 3.27 3
4 08/29/2025 14:42:00 69.90, -44.28 60.72 08/29/2025 14:43:11 69.85, -43.56 60.66 28.10 71
5 09/01/2025 05:19:28 70.27, 96.86 62.02 09/01/2025 05:18:50 70.27, 96.94 62.02 2.90 38
6 09/01/2025 06:08:58 -70.16, -95.66 118.08 09/01/2025 06:09:32 -70.18, -95.60 118.07 2.81 34
7 09/03/2025 20:46:24 -70.63, 45.64 116.67 09/03/2025 20:45:13 -70.69, 44.71 116.59 34.63 71
8 09/03/2025 21:35:56 70.25,-147.28 62.97 09/03/2025 21:35:51 70.26,-147.30 62.99 1.26 5
9 09/03/2025 22:25:26 -70.14, 20.20 117.13 09/03/2025 22:26:33 -70.16, 20.17 117.11 2.39 67
10 09/06/2025 13:02:56 -70.32, 161.06 115.99 09/06/2025 13:02:06 -70.31, 161.07 115.99 0.54 50
11 09/06/2025 13:52:23 70.21, -31.45 63.92 09/06/2025 13:52:50 70.21, -31.46 63.92 0.21 27
12 09/09/2025 04:29:44 70.91, 110.21 65.59 09/09/2025 04:28:35 70.95, 108.47 65.66 63.38 69
13 09/09/2025 05:19:24 -70.26, -83.13 115.04 09/09/2025 05:19:06 -70.26, -83.09 115.04 1.40 18
14 09/09/2025 06:08:51 70.15, 84.35 64.86 09/09/2025 06:09:50 70.16, 84.38 64.87 1.55 59

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 8/26/2025
SNOs_Map_LANDSAT-8_NPP_20250827.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 08/26/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP