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: 4/28/2025
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 04/28/2025 21:35:21 70.28,-147.38 55.76 04/28/2025 21:34:29 70.30,-147.43 55.78 2.99 52
2 04/28/2025 22:24:51 -70.17, 20.09 124.37 04/28/2025 22:25:10 -70.16, 20.11 124.38 0.89 19
3 04/28/2025 23:14:33 69.24,-173.53 54.72 04/28/2025 23:15:39 69.24,-171.23 54.67 90.91 66
4 05/01/2025 13:51:51 70.23, -31.58 54.89 05/01/2025 13:51:26 70.21, -31.52 54.87 3.36 25
5 05/01/2025 14:41:21 -70.12, 135.90 125.24 05/01/2025 14:42:08 -70.11, 135.94 125.25 1.93 47
6 05/04/2025 05:18:53 -70.30, -83.24 125.83 05/04/2025 05:17:40 -70.28, -83.19 125.84 2.90 73
7 05/04/2025 06:08:20 70.20, 84.25 54.06 05/04/2025 06:08:24 70.18, 84.29 54.05 2.63 4
8 05/04/2025 06:57:52 -69.98,-108.43 126.16 05/04/2025 06:59:04 -69.97,-108.08 126.18 13.48 72
9 05/06/2025 21:35:20 -70.29, 32.61 126.60 05/06/2025 21:34:37 -70.26, 32.62 126.62 3.18 43
10 05/06/2025 22:24:47 70.18,-159.90 53.29 05/06/2025 22:25:21 70.16,-159.91 53.27 2.22 34
11 05/09/2025 13:02:11 70.72, -18.50 53.12 05/09/2025 13:01:01 70.78, -19.77 53.21 46.99 70
12 05/09/2025 13:51:48 -70.23, 148.41 127.38 05/09/2025 13:51:35 -70.24, 148.41 127.36 1.27 13
13 05/09/2025 14:41:15 70.12, -44.10 52.51 05/09/2025 14:42:18 70.10, -44.05 52.48 3.10 63

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 4/28/2025
SNOs_Map_LANDSAT-8_NPP_20250428.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 04/28/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP