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: 4/27/2025
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 04/28/2025 21:35:21 70.28,-147.38 55.75 04/28/2025 21:34:28 70.25,-147.36 55.73 2.85 53
2 04/28/2025 22:24:51 -70.16, 20.09 124.38 04/28/2025 22:25:10 -70.16, 20.10 124.37 0.64 19
3 04/28/2025 23:14:33 69.23,-173.54 54.72 04/28/2025 23:15:39 69.25,-171.23 54.68 90.91 66
4 05/01/2025 13:51:51 70.23, -31.58 54.88 05/01/2025 13:51:26 70.21, -31.53 54.87 2.76 25
5 05/01/2025 14:41:21 -70.12, 135.89 125.24 05/01/2025 14:42:08 -70.12, 135.94 125.24 1.72 47
6 05/04/2025 05:18:53 -70.30, -83.24 125.82 05/04/2025 05:17:40 -70.29, -83.19 125.83 2.64 73
7 05/04/2025 06:08:20 70.20, 84.25 54.06 05/04/2025 06:08:24 70.18, 84.28 54.05 2.20 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 13.24 72
9 05/06/2025 21:35:20 -70.29, 32.62 126.59 05/06/2025 21:34:37 -70.26, 32.62 126.62 3.48 43
10 05/06/2025 22:24:47 70.18,-159.89 53.29 05/06/2025 22:25:21 70.16,-159.92 53.27 2.44 34
11 05/09/2025 13:02:11 70.73, -18.48 53.12 05/09/2025 13:01:01 70.78, -19.77 53.21 47.52 70
12 05/09/2025 13:51:48 -70.24, 148.43 127.37 05/09/2025 13:51:35 -70.25, 148.41 127.36 0.90 13
13 05/09/2025 14:41:15 70.13, -44.09 52.52 05/09/2025 14:42:19 70.15, -44.14 52.54 3.28 64

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 4/27/2025
SNOs_Map_LANDSAT-8_NPP_20250427.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 04/27/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP