Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-20 and LANDSAT-8 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 10/14/2025
Index Date (NOAA-20) Time (NOAA-20) Lat,Lon (NOAA-20) SZA (NOAA-20 ) Date (LANDSAT-8) Time (LANDSAT-8) Lat,Lon (LANDSAT-8) SZA (LANDSAT-8 ) Distance(km) Time Diff (sec)
1 10/15/2025 23:51:40 70.03, 178.36 78.82 10/15/2025 23:52:14 70.04, 178.36 78.83 1.40 34
2 10/16/2025 00:42:22 -69.94, -14.19 101.27 10/16/2025 00:41:44 -69.93, -14.16 101.28 1.53 38
3 10/18/2025 15:17:58 -70.70, 125.77 99.54 10/18/2025 15:19:07 -70.59, 127.41 99.66 61.52 69
4 10/18/2025 16:08:31 70.02, -65.84 79.78 10/18/2025 16:08:43 69.99, -65.82 79.76 2.77 12
5 10/18/2025 16:59:12 -69.87, 101.70 100.35 10/18/2025 16:58:13 -69.88, 101.66 100.34 1.78 59
6 10/21/2025 07:34:37 -70.07,-117.43 99.22 10/21/2025 07:35:44 -70.08,-117.45 99.21 1.38 67
7 10/21/2025 08:25:21 69.97, 50.04 80.69 10/21/2025 08:25:11 69.97, 50.04 80.70 1.02 10
8 10/21/2025 09:15:57 -69.56,-142.04 99.71 10/21/2025 09:14:45 -69.65,-142.78 99.62 30.45 72
9 10/23/2025 23:51:27 -70.03, -1.57 98.32 10/23/2025 23:52:12 -70.04, -1.62 98.31 2.36 45
10 10/24/2025 00:42:10 69.92, 165.90 81.59 10/24/2025 00:41:38 69.92, 165.86 81.59 1.63 32
11 10/26/2025 15:17:49 70.87, -54.44 83.44 10/26/2025 15:18:56 70.78, -52.28 83.35 79.56 67
12 10/26/2025 16:08:16 -69.99, 114.28 97.44 10/26/2025 16:08:38 -70.02, 114.23 97.42 3.15 22
13 10/26/2025 16:59:00 69.88, -78.25 82.47 10/26/2025 16:58:05 69.90, -78.28 82.48 2.06 55

Figure of NOAA-20 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/14/2025
SNOs_Map_NOAA-20_LANDSAT-8_20251015.jpg

Download SNOs between NOAA-20 and LANDSAT-8 since TLE EPOCH: 10/14/2025 in txt file.

Historial Predications of SNOs between NOAA-20 and LANDSAT-8