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: 9/13/2023
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 09/14/2023 07:34:15 70.80, 61.30 67.28 09/14/2023 07:35:22 70.69, 63.46 67.12 80.03 67
2 09/14/2023 08:24:42 -69.94,-130.01 113.61 09/14/2023 08:25:04 -69.92,-130.03 113.63 2.37 22
3 09/14/2023 09:15:26 69.81, 37.49 66.28 09/14/2023 09:14:31 69.82, 37.47 66.29 1.18 55
4 09/16/2023 23:50:55 69.98, 178.37 67.46 09/16/2023 23:52:04 69.99, 178.32 67.46 2.21 69
5 09/17/2023 00:41:37 -69.90, -14.19 112.62 09/17/2023 00:41:34 -69.88, -14.20 112.64 2.12 3
6 09/17/2023 01:32:16 69.51, 153.69 67.00 09/17/2023 01:31:04 69.61, 153.07 67.11 26.69 72
7 09/19/2023 16:07:49 69.96, -65.83 68.47 09/19/2023 16:08:32 69.97, -65.82 68.48 1.74 43
8 09/19/2023 16:58:31 -69.87, 101.61 111.61 09/19/2023 16:58:02 -69.87, 101.66 111.62 2.00 29
9 09/22/2023 07:34:14 -70.80,-118.69 109.65 09/22/2023 07:35:22 -70.69,-116.54 109.80 79.97 68
10 09/22/2023 08:24:44 69.94, 49.96 69.49 09/22/2023 08:25:01 69.92, 49.99 69.46 2.95 17
11 09/22/2023 09:15:25 -69.80,-142.51 110.65 09/22/2023 09:14:31 -69.81,-142.52 110.63 1.32 54
12 09/24/2023 23:50:54 -70.00, -1.67 109.43 09/24/2023 23:52:02 -70.00, -1.65 109.44 0.64 68
13 09/25/2023 00:41:38 69.88, 165.82 70.47 09/25/2023 00:41:29 69.88, 165.83 70.46 0.65 9
14 09/25/2023 01:32:15 -69.53, -26.35 109.88 09/25/2023 01:31:03 -69.56, -26.98 109.84 24.77 72

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/13/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230913.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 09/13/2023 in txt file.

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