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: 6/14/2025
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 46.90 06/14/2025 13:27:16 70.25, -25.23 46.90 1.38 33
2 06/14/2025 14:17:25 -70.14, 142.22 133.22 06/14/2025 14:16:46 -70.14, 142.23 133.22 0.63 39
3 06/17/2025 04:53:04 -70.78, -77.67 132.63 06/17/2025 04:54:14 -70.69, -76.35 132.77 49.31 70
4 06/17/2025 05:43:39 70.21, 90.56 46.77 06/17/2025 05:43:48 70.21, 90.58 46.76 1.04 9
5 06/17/2025 06:34:21 -70.11,-101.96 133.34 06/17/2025 06:33:18 -70.10,-101.95 133.35 1.01 63
6 06/19/2025 21:09:50 -70.29, 38.91 133.20 06/19/2025 21:10:51 -70.30, 38.95 133.19 2.60 61
7 06/19/2025 22:00:34 70.19,-153.63 46.70 06/19/2025 22:00:18 70.20,-153.56 46.71 3.00 16
8 06/19/2025 22:51:07 -69.60, 14.57 133.91 06/19/2025 22:49:56 -69.65, 13.31 133.81 48.98 71
9 06/22/2025 13:26:46 -70.26, 154.72 133.21 06/22/2025 13:27:22 -70.28, 154.79 133.21 3.18 36
10 06/22/2025 14:17:29 70.11, -37.74 46.63 06/22/2025 14:16:50 70.11, -37.80 46.64 2.36 39
11 06/25/2025 04:53:08 70.77, 102.36 47.38 06/25/2025 04:54:17 70.66, 103.61 47.22 47.70 69
12 06/25/2025 05:43:41 -70.19, -89.40 133.23 06/25/2025 05:43:54 -70.18, -89.48 133.25 3.57 13
13 06/25/2025 06:34:25 70.10, 78.06 46.67 06/25/2025 06:33:20 70.12, 78.09 46.70 2.60 65
14 06/27/2025 21:09:55 70.29,-141.09 46.98 06/27/2025 21:10:54 70.26,-141.10 46.94 3.45 59
15 06/27/2025 22:00:37 -70.18, 26.39 133.14 06/27/2025 22:00:24 -70.16, 26.39 133.16 2.45 13
16 06/27/2025 22:51:09 69.45,-165.20 46.10 06/27/2025 22:50:00 69.55,-166.82 46.26 64.31 69

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/14/2025
SNOs_Map_NPP_LANDSAT-9_20250614.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 06/14/2025 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9