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: 12/25/2023
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 12/27/2023 07:34:47 -69.99,-117.66 86.74 12/27/2023 07:35:52 -69.99,-117.60 86.75 2.25 65
2 12/27/2023 08:25:31 69.87, 49.82 93.14 12/27/2023 08:25:19 69.89, 49.89 93.16 3.38 12
3 12/27/2023 09:16:06 -69.41,-142.19 87.34 12/27/2023 09:14:54 -69.50,-143.00 87.23 33.23 72
4 12/29/2023 23:51:40 -69.95, -1.83 86.91 12/29/2023 23:52:20 -69.93, -1.81 86.94 2.95 40
5 12/30/2023 00:42:24 69.84, 165.65 92.97 12/30/2023 00:41:47 69.82, 165.68 92.96 2.35 37
6 01/01/2024 15:18:01 70.49, -54.22 93.48 01/01/2024 15:19:11 70.37, -52.93 93.31 50.06 70
7 01/01/2024 16:08:33 -69.88, 114.06 87.17 01/01/2024 16:08:48 -69.88, 114.00 87.17 2.10 15
8 01/01/2024 16:59:17 69.76, -78.46 92.71 01/01/2024 16:58:15 69.76, -78.51 92.72 1.66 62
9 01/04/2024 07:34:45 69.96, 62.40 92.68 01/04/2024 07:35:45 69.95, 62.36 92.66 1.87 60
10 01/04/2024 08:25:27 -69.86,-130.15 87.42 01/04/2024 08:25:15 -69.84,-130.15 87.45 2.71 12
11 01/04/2024 09:16:00 69.17, 38.17 91.86 01/04/2024 09:14:51 69.23, 36.67 91.97 59.82 69
12 01/06/2024 23:51:38 69.91, 178.25 92.34 01/06/2024 23:52:11 69.92, 178.22 92.35 2.17 33
13 01/07/2024 00:42:20 -69.81, -14.29 87.77 01/07/2024 00:41:41 -69.82, -14.29 87.76 0.83 39

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 12/25/2023
SNOs_Map_NOAA-21_LANDSAT-9_20231225.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 12/25/2023 in txt file.

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