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: 2/13/2023
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 02/15/2023 15:18:42 70.10, -53.37 82.77 02/15/2023 15:19:27 70.10, -53.38 82.76 0.30 45
2 02/15/2023 16:09:24 -70.01, 114.08 97.34 02/15/2023 16:08:57 -69.99, 114.09 97.37 2.78 27
3 02/18/2023 06:45:06 -70.88,-106.16 97.33 02/18/2023 06:46:14 -70.80,-104.11 97.51 75.33 68
4 02/18/2023 07:35:36 70.03, 62.50 81.76 02/18/2023 07:35:53 70.03, 62.42 81.76 3.02 17
5 02/18/2023 08:26:18 -69.94,-130.04 98.36 02/18/2023 08:25:23 -69.92,-130.11 98.36 2.84 55
6 02/20/2023 23:01:48 -70.13, 10.80 99.09 02/20/2023 23:02:51 -70.13, 10.81 99.09 0.75 63
7 02/20/2023 23:52:32 70.02, 178.28 80.79 02/20/2023 23:52:18 70.02, 178.29 80.79 0.79 14
8 02/21/2023 00:43:06 -69.50, -13.64 99.78 02/21/2023 00:41:55 -69.53, -14.76 99.69 43.64 71
9 02/23/2023 15:18:43 -70.06, 126.66 100.14 02/23/2023 15:19:16 -70.07, 126.61 100.14 2.22 33
10 02/23/2023 16:09:27 69.95, -65.87 79.74 02/23/2023 16:08:43 69.95, -65.91 79.75 1.66 44
11 02/26/2023 06:44:58 70.20, 74.88 79.04 02/26/2023 06:46:09 70.16, 75.01 78.97 7.06 71
12 02/26/2023 07:35:39 -70.05,-117.56 101.14 02/26/2023 07:35:39 -70.05,-117.51 101.15 1.87 0
13 02/26/2023 08:26:20 69.78, 50.14 78.57 02/26/2023 08:25:08 69.82, 49.82 78.63 13.24 72

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/13/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230213.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 02/13/2023 in txt file.

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