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: 9/3/2025
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 09/03/2025 21:36:03 70.26,-147.31 62.98 09/03/2025 21:35:50 70.25,-147.28 62.97 1.46 13
2 09/03/2025 22:25:33 -70.14, 20.16 117.12 09/03/2025 22:26:32 -70.16, 20.18 117.11 2.14 59
3 09/06/2025 13:03:06 -70.33, 161.04 115.97 09/06/2025 13:02:06 -70.32, 161.05 115.98 1.11 60
4 09/06/2025 13:52:33 70.23, -31.46 63.94 09/06/2025 13:52:50 70.21, -31.45 63.92 2.66 17
5 09/06/2025 14:42:13 -69.57, 135.24 116.69 09/06/2025 14:43:22 -69.58, 136.80 116.71 60.45 69
6 09/09/2025 05:19:36 -70.27, -83.16 115.03 09/09/2025 05:19:06 -70.28, -83.13 115.02 1.75 30
7 09/09/2025 06:09:03 70.17, 84.33 64.88 09/09/2025 06:09:50 70.17, 84.35 64.89 1.09 47
8 09/11/2025 20:46:34 70.34,-134.81 66.04 09/11/2025 20:45:23 70.36,-134.81 66.07 2.38 71
9 09/11/2025 21:36:04 -70.24, 32.67 114.05 09/11/2025 21:36:05 -70.26, 32.68 114.03 2.23 1
10 09/11/2025 22:25:34 69.96,-160.08 65.69 09/11/2025 22:26:45 69.94,-159.53 65.66 21.02 71
11 09/14/2025 13:03:02 70.32, -18.95 67.04 09/14/2025 13:02:22 70.30, -18.95 67.02 2.56 40
12 09/14/2025 13:52:32 -70.22, 148.53 113.05 09/14/2025 13:53:05 -70.24, 148.46 113.03 3.28 33
13 09/17/2025 04:29:57 -70.71, -70.13 111.56 09/17/2025 04:28:46 -70.80, -71.32 111.45 44.65 71
14 09/17/2025 05:19:30 70.27, 96.86 68.02 09/17/2025 05:19:21 70.24, 96.90 68.00 2.94 9
15 09/17/2025 06:09:00 -70.16, -95.66 112.08 09/17/2025 06:10:04 -70.17, -95.68 112.06 1.63 64

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 9/3/2025
SNOs_Map_LANDSAT-8_NPP_20250904.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 09/03/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP