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: 4/11/2025
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 04/12/2025 21:35:22 70.74,-146.69 61.64 04/12/2025 21:34:12 70.76,-148.09 61.70 51.63 70
2 04/12/2025 22:25:00 -70.19, 20.13 118.91 04/12/2025 22:24:45 -70.21, 20.09 118.89 2.69 15
3 04/12/2025 23:14:27 70.09,-172.37 60.98 04/12/2025 23:15:29 70.07,-172.38 60.96 2.16 62
4 04/15/2025 13:51:58 70.28, -31.49 60.23 04/15/2025 13:51:03 70.28, -31.57 60.23 2.87 55
5 04/15/2025 14:41:28 -70.17, 135.98 119.90 04/15/2025 14:41:44 -70.15, 135.95 119.92 2.53 16
6 04/15/2025 15:31:08 69.35, -57.51 59.30 04/15/2025 15:32:15 69.32, -55.52 59.22 78.16 67
7 04/18/2025 06:08:25 70.22, 84.30 59.22 04/18/2025 06:08:01 70.23, 84.26 59.24 2.00 24
8 04/18/2025 06:57:55 -70.11,-108.23 120.90 04/18/2025 06:58:42 -70.10,-108.21 120.92 1.37 47
9 04/20/2025 21:35:25 -70.28, 32.63 121.64 04/20/2025 21:34:15 -70.27, 32.66 121.64 1.85 70
10 04/20/2025 22:24:52 70.17,-159.89 58.25 04/20/2025 22:24:59 70.14,-159.84 58.22 3.23 7
11 04/20/2025 23:14:26 -69.84, 7.29 122.08 04/20/2025 23:15:37 -69.85, 7.93 122.10 24.58 71
12 04/23/2025 13:51:51 -70.25, 148.47 122.56 04/23/2025 13:51:14 -70.24, 148.46 122.57 1.49 37
13 04/23/2025 14:41:18 70.14, -44.04 57.32 04/23/2025 14:41:58 70.12, -44.05 57.30 1.69 40

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 4/11/2025
SNOs_Map_LANDSAT-8_NPP_20250411.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 04/11/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP