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: 2/24/2025
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 02/25/2025 06:33:14 -70.14,-102.02 100.85 02/25/2025 06:33:47 -70.11,-102.00 100.89 3.31 33
2 02/25/2025 07:23:58 70.02, 65.47 79.01 02/25/2025 07:23:14 70.01, 65.49 79.01 1.54 44
3 02/27/2025 21:59:29 70.44,-154.01 78.47 02/27/2025 22:00:41 70.31,-153.46 78.31 24.78 72
4 02/27/2025 22:50:06 -70.09, 13.84 101.91 02/27/2025 22:50:13 -70.09, 13.86 101.92 0.46 7
5 02/27/2025 23:40:50 69.97,-178.66 77.95 02/27/2025 23:39:40 69.98,-178.65 77.97 1.67 70
6 03/02/2025 14:16:16 70.13, -37.75 77.13 03/02/2025 14:17:09 70.13, -37.82 77.12 2.61 53
7 03/02/2025 15:06:58 -70.05, 129.69 102.98 03/02/2025 15:06:38 -70.08, 129.73 102.95 3.15 20
8 03/02/2025 15:57:26 69.08, -61.59 75.99 03/02/2025 15:56:20 69.14, -63.90 76.16 91.90 66
9 03/05/2025 06:33:08 70.11, 78.08 76.06 03/05/2025 06:33:33 70.12, 78.06 76.07 1.97 25
10 03/05/2025 07:23:50 -70.03,-114.48 104.04 03/05/2025 07:23:03 -70.01,-114.46 104.05 1.53 47
11 03/07/2025 21:59:16 -70.26, 26.31 104.81 03/07/2025 22:00:28 -70.24, 26.48 104.86 7.14 72
12 03/07/2025 22:49:59 70.09,-166.11 75.00 03/07/2025 22:49:56 70.07,-166.11 74.97 2.89 3
13 03/07/2025 23:40:39 -69.91, 1.49 105.21 03/07/2025 23:39:26 -69.96, 1.37 105.15 7.48 73

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/24/2025
SNOs_Map_NPP_LANDSAT-9_20250224.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 02/24/2025 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9