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: 7/22/2025
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 07/23/2025 05:19:21 -70.29, -83.13 129.75 07/23/2025 05:18:26 -70.28, -83.11 129.75 1.50 55
2 07/23/2025 06:08:48 70.18, 84.36 50.16 07/23/2025 06:09:11 70.19, 84.34 50.16 0.91 23
3 07/23/2025 06:58:31 -69.36,-109.14 130.61 07/23/2025 06:59:38 -69.33,-107.07 130.73 81.36 67
4 07/25/2025 21:35:51 -70.27, 32.72 129.20 07/25/2025 21:35:21 -70.26, 32.70 129.20 1.64 30
5 07/25/2025 22:25:18 70.16,-159.79 50.71 07/25/2025 22:26:06 70.17,-159.85 50.71 2.57 48
6 07/28/2025 13:02:49 70.40, -18.84 51.53 07/28/2025 13:01:36 70.46, -19.17 51.62 14.16 73
7 07/28/2025 13:52:20 -70.24, 148.56 128.62 07/28/2025 13:52:15 -70.24, 148.51 128.61 1.95 5
8 07/28/2025 14:41:47 70.13, -43.96 51.29 07/28/2025 14:42:59 70.10, -43.97 51.25 3.00 72
9 07/31/2025 05:19:20 70.29, 96.88 52.07 07/31/2025 05:18:28 70.30, 96.88 52.09 0.75 52
10 07/31/2025 06:08:50 -70.19, -95.63 128.02 07/31/2025 06:09:09 -70.17, -95.61 128.04 1.40 19
11 07/31/2025 06:58:32 69.24, 70.72 51.10 07/31/2025 06:59:38 69.24, 73.07 51.00 92.80 66
12 08/02/2025 21:35:49 70.28,-147.25 52.74 08/02/2025 21:35:23 70.29,-147.33 52.76 3.44 26
13 08/02/2025 22:25:19 -70.17, 20.24 127.35 08/02/2025 22:26:04 -70.17, 20.18 127.37 2.38 45

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 7/22/2025
SNOs_Map_LANDSAT-8_NPP_20250722.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 07/22/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP