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: 6/13/2025
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 06/14/2025 13:26:43 70.25, -25.27 46.91 06/14/2025 13:27:16 70.26, -25.23 46.90 1.72 33
2 06/14/2025 14:17:25 -70.14, 142.21 133.21 06/14/2025 14:16:46 -70.14, 142.24 133.21 1.08 39
3 06/17/2025 04:53:04 -70.79, -77.68 132.62 06/17/2025 04:54:14 -70.70, -76.33 132.76 50.55 70
4 06/17/2025 05:43:39 70.23, 90.54 46.79 06/17/2025 05:43:48 70.22, 90.59 46.78 2.32 9
5 06/17/2025 06:34:21 -70.12,-101.98 133.33 06/17/2025 06:33:18 -70.11,-101.93 133.33 1.97 63
6 06/19/2025 21:09:49 -70.26, 38.96 133.23 06/19/2025 21:10:52 -70.27, 38.90 133.22 2.78 63
7 06/19/2025 22:00:33 70.16,-153.58 46.67 06/19/2025 22:00:19 70.17,-153.60 46.68 1.20 14
8 06/19/2025 22:51:07 -69.63, 14.54 133.88 06/19/2025 22:49:56 -69.68, 13.34 133.79 46.47 71
9 06/22/2025 13:26:45 -70.25, 154.74 133.23 06/22/2025 13:27:23 -70.26, 154.77 133.22 1.55 38
10 06/22/2025 14:17:29 70.15, -37.80 46.67 06/22/2025 14:16:50 70.15, -37.75 46.67 1.83 39
11 06/25/2025 04:53:08 70.83, 102.26 47.44 06/25/2025 04:54:17 70.72, 103.69 47.27 53.79 69
12 06/25/2025 05:43:40 -70.20, -89.40 133.23 06/25/2025 05:43:54 -70.23, -89.40 133.20 3.56 14
13 06/25/2025 06:34:24 70.10, 78.06 46.68 06/25/2025 06:33:21 70.12, 78.08 46.70 2.04 63

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/13/2025
SNOs_Map_NPP_LANDSAT-9_20250613.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 06/13/2025 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9