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: 9/18/2023
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 09/19/2023 16:07:50 69.97, -65.85 68.48 09/19/2023 16:08:33 69.97, -65.83 68.47 0.86 43
2 09/19/2023 16:58:31 -69.84, 101.66 111.64 09/19/2023 16:58:03 -69.86, 101.64 111.63 1.70 28
3 09/22/2023 07:34:15 -70.82,-118.72 109.63 09/22/2023 07:35:22 -70.73,-116.47 109.75 82.95 67
4 09/22/2023 08:24:44 69.91, 50.02 69.45 09/22/2023 08:25:02 69.91, 49.98 69.45 1.72 18
5 09/22/2023 09:15:26 -69.82,-142.54 110.63 09/22/2023 09:14:32 -69.80,-142.54 110.65 2.29 54
6 09/24/2023 23:50:53 -69.97, -1.62 109.47 09/24/2023 23:52:02 -69.99, -1.67 109.45 2.90 69
7 09/25/2023 00:41:38 69.90, 165.79 70.48 09/25/2023 00:41:29 69.87, 165.81 70.46 3.05 9
8 09/25/2023 01:32:15 -69.55, -26.38 109.86 09/25/2023 01:31:02 -69.60, -26.92 109.80 22.10 73
9 09/27/2023 16:07:48 -69.97, 114.15 108.42 09/27/2023 16:08:29 -69.97, 114.20 108.43 1.76 41
10 09/27/2023 16:58:32 69.85, -78.37 71.48 09/27/2023 16:57:56 69.85, -78.32 71.48 1.80 36
11 09/30/2023 07:34:09 70.50, 61.79 73.14 09/30/2023 07:35:19 70.40, 63.08 73.03 49.30 70
12 09/30/2023 08:24:42 -69.93,-130.02 107.43 09/30/2023 08:24:56 -69.91,-129.99 107.44 2.01 14
13 09/30/2023 09:15:26 69.81, 37.46 72.48 09/30/2023 09:14:23 69.79, 37.49 72.46 2.64 63

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/18/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230918.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 09/18/2023 in txt file.

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