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: 4/12/2025
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 21:35:23 70.70,-146.76 61.60 04/12/2025 21:34:13 70.80,-148.17 61.74 52.87 70
2 04/12/2025 22:25:00 -70.20, 20.14 118.91 04/12/2025 22:24:45 -70.20, 20.11 118.89 1.52 15
3 04/12/2025 23:14:28 70.04,-172.44 60.93 04/12/2025 23:15:29 70.06,-172.37 60.95 3.61 61
4 04/15/2025 13:51:58 70.28, -31.50 60.22 04/15/2025 13:51:03 70.27, -31.56 60.22 2.51 55
5 04/15/2025 14:41:27 -70.16, 135.97 119.90 04/15/2025 14:41:43 -70.14, 135.96 119.93 2.66 16
6 04/15/2025 15:31:07 69.34, -57.51 59.30 04/15/2025 15:32:14 69.31, -55.51 59.21 78.77 67
7 04/18/2025 06:08:25 70.20, 84.27 59.20 04/18/2025 06:08:01 70.22, 84.27 59.23 2.58 24
8 04/18/2025 06:57:55 -70.09,-108.25 120.92 04/18/2025 06:58:42 -70.09,-108.20 120.93 1.91 47
9 04/20/2025 21:35:24 -70.30, 32.65 121.62 04/20/2025 21:34:16 -70.31, 32.58 121.59 3.23 68
10 04/20/2025 22:24:51 70.19,-159.86 58.26 04/20/2025 22:25:00 70.19,-159.91 58.27 2.13 9
11 04/20/2025 23:14:25 -69.86, 7.31 122.07 04/20/2025 23:15:37 -69.84, 7.94 122.11 24.10 72
12 04/23/2025 13:51:50 -70.24, 148.46 122.58 04/23/2025 13:51:14 -70.23, 148.47 122.58 0.86 36
13 04/23/2025 14:41:17 70.13, -44.05 57.31 04/23/2025 14:41:58 70.12, -44.04 57.29 1.36 41

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 4/12/2025
SNOs_Map_LANDSAT-8_NPP_20250412.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 04/12/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP