Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NPP and LANDSAT-9 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 10/26/2025
Index Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Date (LANDSAT-9) Time (LANDSAT-9) Lat,Lon (LANDSAT-9) SZA (LANDSAT-9 ) Distance(km) Time Diff (sec)
1 10/28/2025 12:38:01 70.36, -12.80 83.56 10/28/2025 12:38:30 70.35, -12.75 83.55 2.44 29
2 10/28/2025 13:28:43 -70.26, 154.68 96.53 10/28/2025 13:28:00 -70.24, 154.72 96.56 3.02 43
3 10/31/2025 04:04:16 -70.56, -64.65 95.38 10/31/2025 04:05:28 -70.51, -64.26 95.42 15.59 72
4 10/31/2025 04:54:57 70.30, 103.07 84.38 10/31/2025 04:54:57 70.30, 103.07 84.37 0.51 0
5 10/31/2025 05:45:39 -70.20, -89.45 95.72 10/31/2025 05:44:27 -70.19, -89.46 95.73 1.39 72
6 11/02/2025 20:21:09 -70.35, 51.46 94.73 11/02/2025 20:21:56 -70.38, 51.44 94.71 3.03 47
7 11/02/2025 21:11:53 70.25,-141.06 85.18 11/02/2025 21:11:23 70.27,-141.08 85.19 2.31 30
8 11/05/2025 11:47:34 71.03, -1.20 86.77 11/05/2025 11:48:42 70.92, 0.52 86.66 63.63 68
9 11/05/2025 12:38:04 -70.31, 167.31 93.96 11/05/2025 12:38:21 -70.32, 167.25 93.95 2.64 17
10 11/05/2025 13:28:48 70.20, -25.22 85.95 11/05/2025 13:27:48 70.20, -25.27 85.95 2.18 60
11 11/08/2025 04:04:18 70.37, 115.67 86.89 11/08/2025 04:05:16 70.39, 115.62 86.91 2.88 58
12 11/08/2025 04:55:00 -70.27, -76.86 93.20 11/08/2025 04:54:46 -70.28, -76.90 93.19 2.31 14
13 11/08/2025 05:45:32 69.53, 91.57 86.08 11/08/2025 05:44:24 69.56, 89.73 86.10 71.71 68

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/26/2025
SNOs_Map_NPP_LANDSAT-9_20251026.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 10/26/2025 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9