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: 9/24/2023
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 09/24/2023 23:50:54 -70.01, -1.69 109.42 09/24/2023 23:52:02 -70.01, -1.64 109.43 1.69 68
2 09/25/2023 00:41:38 69.89, 165.81 70.47 09/25/2023 00:41:29 69.91, 165.86 70.49 2.77 9
3 09/25/2023 01:32:15 -69.54, -26.36 109.87 09/25/2023 01:31:02 -69.63, -26.89 109.78 22.59 73
4 09/27/2023 16:07:48 -69.97, 114.15 108.43 09/27/2023 16:08:30 -69.95, 114.16 108.45 2.19 42
5 09/27/2023 16:58:32 69.84, -78.35 71.47 09/27/2023 16:57:57 69.84, -78.35 71.46 0.52 35
6 09/30/2023 07:34:10 70.54, 61.71 73.19 09/30/2023 07:35:19 70.45, 63.15 73.08 54.36 69
7 09/30/2023 08:24:42 -69.93,-130.02 107.42 09/30/2023 08:24:57 -69.90,-130.01 107.45 3.06 15
8 09/30/2023 09:15:25 69.81, 37.47 72.47 09/30/2023 09:14:23 69.79, 37.48 72.45 2.28 62
9 10/02/2023 23:50:53 69.99, 178.34 73.67 10/02/2023 23:51:52 69.98, 178.37 73.65 1.71 59
10 10/03/2023 00:41:34 -69.85, -14.13 106.47 10/03/2023 00:41:22 -69.88, -14.14 106.44 3.05 12
11 10/03/2023 01:32:08 69.20, 154.11 72.90 10/03/2023 01:30:58 69.26, 152.67 72.97 57.29 70
12 10/05/2023 16:07:46 69.93, -65.79 74.63 10/05/2023 16:08:18 69.92, -65.81 74.62 1.22 32
13 10/05/2023 16:58:28 -69.84, 101.66 105.45 10/05/2023 16:57:48 -69.82, 101.68 105.47 1.99 40

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/24/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230924.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 09/24/2023 in txt file.

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