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: 10/10/2023
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 10/10/2023 23:50:55 -70.41, -2.29 102.86 10/10/2023 23:52:06 -70.27, -1.30 103.01 40.01 71
2 10/11/2023 00:41:31 69.87, 165.85 76.61 10/11/2023 00:41:38 69.89, 165.80 76.63 2.97 7
3 10/11/2023 01:32:13 -69.78, -26.70 103.46 10/11/2023 01:31:08 -69.78, -26.71 103.47 0.21 65
4 10/13/2023 16:07:40 -69.97, 114.16 102.29 10/13/2023 16:08:43 -69.96, 114.14 102.31 1.77 63
5 10/13/2023 16:58:24 69.86, -78.36 77.61 10/13/2023 16:58:10 69.85, -78.37 77.60 1.10 14
6 10/13/2023 17:48:58 -69.35, 89.70 102.89 10/13/2023 17:47:47 -69.36, 88.60 102.88 43.34 71
7 10/16/2023 08:24:32 -69.93,-129.99 101.35 10/16/2023 08:25:14 -69.93,-130.03 101.34 1.60 42
8 10/16/2023 09:15:16 69.82, 37.49 78.56 10/16/2023 09:14:41 69.82, 37.46 78.56 1.04 35
9 10/18/2023 23:50:55 70.73, 177.22 80.43 10/18/2023 23:52:02 70.61, 179.21 80.31 74.38 67
10 10/19/2023 00:41:23 -69.89, -14.16 100.40 10/19/2023 00:41:43 -69.91, -14.18 100.39 1.99 20
11 10/19/2023 01:32:07 69.79, 153.31 79.51 10/19/2023 01:31:10 69.79, 153.31 79.51 0.76 57
12 10/21/2023 16:07:33 69.98, -65.82 80.63 10/21/2023 16:08:42 69.99, -65.82 80.64 1.48 69
13 10/21/2023 16:58:15 -69.88, 101.65 99.46 10/21/2023 16:58:12 -69.89, 101.68 99.45 2.01 3
14 10/21/2023 17:48:54 69.51, -90.50 80.19 10/21/2023 17:47:42 69.61, -91.07 80.28 24.54 72

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/10/2023
SNOs_Map_NOAA-21_LANDSAT-9_20231010.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 10/10/2023 in txt file.

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