Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-20 and LANDSAT-9 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 7/19/2023
Index Date (NOAA-20) Time (NOAA-20) Lat,Lon (NOAA-20) SZA (NOAA-20 ) Date (LANDSAT-9) Time (LANDSAT-9) Lat,Lon (LANDSAT-9) SZA (LANDSAT-9 ) Distance(km) Time Diff (sec)
1 07/20/2023 21:34:23 70.23,-147.25 49.64 07/20/2023 21:35:33 70.23,-147.32 49.64 2.60 70
2 07/20/2023 22:25:05 -70.13, 20.21 130.45 07/20/2023 22:25:03 -70.11, 20.14 130.47 3.38 2
3 07/20/2023 23:15:45 69.81,-171.99 49.22 07/20/2023 23:14:33 69.85,-172.58 49.29 23.13 72
4 07/23/2023 13:51:17 70.20, -31.44 50.14 07/23/2023 13:52:01 70.18, -31.50 50.12 2.76 44
5 07/23/2023 14:41:59 -70.10, 136.03 129.96 07/23/2023 14:41:30 -70.12, 136.05 129.93 2.84 29
6 07/26/2023 05:17:43 -71.06, -84.38 128.39 07/26/2023 05:18:50 -70.92, -82.15 128.62 82.05 67
7 07/26/2023 06:08:12 70.17, 84.37 50.68 07/26/2023 06:08:29 70.16, 84.36 50.67 1.05 17
8 07/26/2023 06:58:54 -70.07,-108.16 129.42 07/26/2023 06:57:59 -70.05,-108.17 129.43 2.13 55
9 07/28/2023 21:34:23 -70.25, 32.70 128.64 07/28/2023 21:35:30 -70.22, 32.69 128.68 3.34 67
10 07/28/2023 22:25:06 70.10,-159.76 51.21 07/28/2023 22:24:57 70.11,-159.82 51.23 2.87 9
11 07/28/2023 23:15:43 -69.73, 8.11 129.17 07/28/2023 23:14:31 -69.78, 7.35 129.08 29.96 72
12 07/31/2023 13:51:17 -70.18, 148.58 128.07 07/31/2023 13:51:57 -70.20, 148.56 128.06 2.44 40
13 07/31/2023 14:42:01 70.08, -43.97 51.84 07/31/2023 14:41:24 70.09, -43.96 51.85 0.77 37

Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/19/2023
SNOs_Map_NOAA-20_LANDSAT-9_20230720.jpg

Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 07/19/2023 in txt file.

Historial Predications of SNOs between NOAA-20 and LANDSAT-9