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: 4/18/2025
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 04/18/2025 06:08:26 70.18, 84.25 59.18 04/18/2025 06:08:01 70.19, 84.32 59.20 3.11 25
2 04/18/2025 06:57:55 -70.12,-108.21 120.90 04/18/2025 06:58:43 -70.12,-108.24 120.90 1.18 48
3 04/20/2025 21:35:24 -70.28, 32.63 121.64 04/20/2025 21:34:15 -70.29, 32.62 121.62 0.75 69
4 04/20/2025 22:24:51 70.18,-159.87 58.26 04/20/2025 22:24:59 70.16,-159.86 58.24 2.51 8
5 04/20/2025 23:14:25 -69.84, 7.29 122.08 04/20/2025 23:15:36 -69.81, 7.98 122.13 26.59 71
6 04/23/2025 13:51:50 -70.24, 148.47 122.57 04/23/2025 13:51:14 -70.26, 148.43 122.55 1.97 36
7 04/23/2025 14:41:17 70.14, -44.04 57.32 04/23/2025 14:41:58 70.13, -44.07 57.31 1.13 41
8 04/26/2025 05:18:45 70.34, 96.86 56.66 04/26/2025 05:17:32 70.39, 96.68 56.72 8.69 73
9 04/26/2025 06:08:16 -70.17, -95.75 123.52 04/26/2025 06:08:12 -70.19, -95.70 123.50 2.85 4
10 04/26/2025 06:57:43 70.06, 71.74 56.37 04/26/2025 06:58:56 70.07, 71.79 56.37 2.35 73
11 04/28/2025 21:35:10 70.28,-147.34 55.75 04/28/2025 21:34:29 70.28,-147.39 55.76 2.20 41
12 04/28/2025 22:24:40 -70.16, 20.14 124.37 04/28/2025 22:25:11 -70.18, 20.08 124.36 2.72 31
13 05/01/2025 13:02:00 -70.67, 161.50 124.67 05/01/2025 13:00:49 -70.70, 160.38 124.61 41.56 71
14 05/01/2025 13:51:33 70.23, -31.50 54.89 05/01/2025 13:51:26 70.24, -31.56 54.90 2.37 7
15 05/01/2025 14:41:03 -70.12, 135.97 125.23 05/01/2025 14:42:08 -70.13, 135.92 125.23 2.31 65

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 4/18/2025
SNOs_Map_LANDSAT-8_NPP_20250418.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 04/18/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP