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: 9/21/2023
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 09/22/2023 07:34:14 -70.81,-118.71 109.64 09/22/2023 07:35:21 -70.75,-116.45 109.74 83.03 67
2 09/22/2023 08:24:44 69.95, 49.95 69.49 09/22/2023 08:25:01 69.93, 50.00 69.47 2.37 17
3 09/22/2023 09:15:25 -69.82,-142.53 110.63 09/22/2023 09:14:31 -69.82,-142.52 110.63 0.69 54
4 09/24/2023 23:50:54 -70.02, -1.69 109.42 09/24/2023 23:52:02 -70.01, -1.64 109.43 1.84 68
5 09/25/2023 00:41:38 69.89, 165.81 70.47 09/25/2023 00:41:29 69.90, 165.85 70.48 2.05 9
6 09/25/2023 01:32:15 -69.55, -26.37 109.87 09/25/2023 01:31:02 -69.63, -26.89 109.78 22.41 73
7 09/27/2023 16:07:48 -69.97, 114.15 108.43 09/27/2023 16:08:30 -69.95, 114.16 108.45 2.23 42
8 09/27/2023 16:58:32 69.85, -78.36 71.47 09/27/2023 16:57:57 69.83, -78.35 71.46 1.41 35
9 09/30/2023 07:34:10 70.55, 61.70 73.20 09/30/2023 07:35:19 70.45, 63.14 73.08 54.63 69
10 09/30/2023 08:24:42 -69.93,-130.02 107.42 09/30/2023 08:24:57 -69.90,-130.00 107.45 3.00 15
11 09/30/2023 09:15:26 69.81, 37.46 72.48 09/30/2023 09:14:24 69.79, 37.48 72.45 3.06 62
12 10/02/2023 23:50:53 70.00, 178.33 73.67 10/02/2023 23:51:52 69.98, 178.37 73.65 2.30 59
13 10/03/2023 00:41:34 -69.85, -14.13 106.47 10/03/2023 00:41:22 -69.88, -14.14 106.44 3.12 12
14 10/03/2023 01:32:08 69.21, 154.11 72.90 10/03/2023 01:30:58 69.26, 152.67 72.96 57.10 70

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/21/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230921.jpg

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

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