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: 8/6/2023
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 08/07/2023 23:50:51 -70.02, -1.62 126.26 08/07/2023 23:51:45 -70.03, -1.61 126.26 1.31 54
2 08/08/2023 00:41:35 69.90, 165.86 53.63 08/08/2023 00:41:12 69.93, 165.90 53.66 3.36 23
3 08/08/2023 01:32:03 -69.07, -25.63 127.23 08/08/2023 01:30:55 -69.10, -27.59 127.12 78.21 68
4 08/10/2023 16:07:42 -69.98, 114.22 125.53 08/10/2023 16:08:16 -69.96, 114.17 125.56 3.41 34
5 08/10/2023 16:58:26 69.87, -78.31 54.37 08/10/2023 16:57:43 69.85, -78.33 54.35 1.98 43
6 08/13/2023 07:33:59 70.47, 61.93 55.77 08/13/2023 07:35:09 70.40, 63.06 55.65 43.05 70
7 08/13/2023 08:24:33 -69.95,-129.96 124.77 08/13/2023 08:24:45 -69.96,-129.94 124.76 1.37 12
8 08/13/2023 09:15:17 69.85, 37.51 55.14 08/13/2023 09:14:12 69.86, 37.56 55.15 2.37 65
9 08/15/2023 23:50:42 70.03, 178.39 56.13 08/15/2023 23:51:44 70.05, 178.44 56.14 2.83 62
10 08/16/2023 00:41:24 -69.94, -14.15 123.96 08/16/2023 00:41:14 -69.94, -14.08 123.96 2.77 10
11 08/16/2023 01:31:59 69.35, 154.01 55.44 08/16/2023 01:30:49 69.39, 152.81 55.53 47.21 70
12 08/18/2023 16:07:31 69.97, -65.74 56.92 08/18/2023 16:08:12 70.00, -65.75 56.94 2.80 41
13 08/18/2023 16:58:13 -69.88, 101.73 123.18 08/18/2023 16:57:42 -69.89, 101.74 123.16 2.02 31

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/6/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230806.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 08/06/2023 in txt file.

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