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: 9/5/2023
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 09/06/2023 07:34:11 -70.81,-118.68 115.72 09/06/2023 07:35:18 -70.72,-116.49 115.87 80.67 67
2 09/06/2023 08:24:41 69.94, 49.99 63.39 09/06/2023 08:24:57 69.97, 50.05 63.41 3.30 16
3 09/06/2023 09:15:22 -69.81,-142.50 116.73 09/06/2023 09:14:28 -69.80,-142.55 116.74 2.68 54
4 09/08/2023 23:50:52 -70.01, -1.65 115.56 09/08/2023 23:52:02 -70.01, -1.65 115.56 0.30 70
5 09/09/2023 00:41:36 69.88, 165.84 64.33 09/09/2023 00:41:29 69.91, 165.85 64.35 2.79 7
6 09/09/2023 01:32:14 -69.59, -26.41 115.96 09/09/2023 01:31:01 -69.69, -26.82 115.85 19.51 73
7 09/11/2023 16:07:48 -70.01, 114.11 114.55 09/11/2023 16:08:33 -69.99, 114.19 114.58 3.62 45
8 09/11/2023 16:58:31 69.83, -78.31 65.29 09/11/2023 16:58:01 69.83, -78.39 65.28 3.00 30
9 09/14/2023 07:34:15 70.79, 61.33 67.26 09/14/2023 07:35:22 70.70, 63.48 67.14 79.41 67
10 09/14/2023 08:24:43 -69.96,-130.05 113.58 09/14/2023 08:25:04 -69.94,-129.99 113.60 3.08 21
11 09/14/2023 09:15:27 69.84, 37.44 66.31 09/14/2023 09:14:31 69.83, 37.49 66.30 2.53 56
12 09/16/2023 23:50:55 70.01, 178.32 67.49 09/16/2023 23:52:03 70.02, 178.37 67.49 2.21 68
13 09/17/2023 00:41:36 -69.87, -14.15 112.65 09/17/2023 00:41:34 -69.87, -14.22 112.65 2.52 2
14 09/17/2023 01:32:16 69.54, 153.64 67.03 09/17/2023 01:31:04 69.59, 153.04 67.09 23.90 72

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/5/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230905.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 09/05/2023 in txt file.

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