Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and LANDSAT-9 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 2/2/2025
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (LANDSAT-9) Time (LANDSAT-9) Lat,Lon (LANDSAT-9) SZA (LANDSAT-9 ) Distance(km) Time Diff (sec)
1 02/04/2025 14:28:26 -70.41, 138.87 93.51 02/04/2025 14:29:37 -70.32, 139.35 93.63 20.73 71
2 02/04/2025 15:19:07 70.11, -53.35 86.16 02/04/2025 15:19:06 70.10, -53.32 86.16 1.19 1
3 02/04/2025 16:09:48 -69.99, 114.14 93.97 02/04/2025 16:08:36 -69.99, 114.16 93.96 0.68 72
4 02/07/2025 06:45:19 -70.15,-104.96 94.61 02/07/2025 06:46:08 -70.18,-104.98 94.59 2.88 49
5 02/07/2025 07:36:04 70.06, 62.49 85.29 02/07/2025 07:35:35 70.06, 62.51 85.30 1.38 29
6 02/09/2025 22:11:48 70.91,-157.75 85.37 02/09/2025 22:12:56 70.80,-155.80 85.16 71.99 68
7 02/09/2025 23:02:16 -70.11, 10.85 95.50 02/09/2025 23:02:37 -70.09, 10.79 95.52 3.29 21
8 02/09/2025 23:53:01 70.02, 178.30 84.39 02/09/2025 23:52:03 70.03, 178.35 84.41 2.41 58
9 02/12/2025 14:28:31 70.16, -40.78 83.68 02/12/2025 14:29:34 70.17, -40.85 83.68 3.06 63
10 02/12/2025 15:19:13 -70.09, 126.64 96.41 02/12/2025 15:19:04 -70.07, 126.64 96.43 2.39 9
11 02/12/2025 16:09:48 69.47, -65.13 82.93 02/12/2025 16:08:38 69.56, -66.41 83.09 50.91 70
12 02/15/2025 06:45:27 70.15, 74.99 82.76 02/15/2025 06:45:59 70.15, 75.02 82.75 1.05 32
13 02/15/2025 07:36:08 -70.03,-117.51 97.38 02/15/2025 07:35:29 -70.05,-117.49 97.36 2.19 39

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/2/2025
SNOs_Map_NOAA-21_LANDSAT-9_20250202.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 02/02/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and LANDSAT-9