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: 2/22/2023
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 02/23/2023 15:18:42 -70.10, 126.60 100.09 02/23/2023 15:19:17 -70.12, 126.67 100.09 3.09 35
2 02/23/2023 16:09:25 69.99, -65.91 79.78 02/23/2023 16:08:44 69.96, -65.91 79.76 3.20 41
3 02/26/2023 06:44:58 70.39, 74.60 79.24 02/26/2023 06:46:09 70.29, 75.19 79.10 24.28 71
4 02/26/2023 07:35:35 -70.03,-117.53 101.16 02/26/2023 07:35:42 -70.01,-117.58 101.18 2.83 7
5 02/26/2023 08:26:19 69.92, 49.95 78.71 02/26/2023 08:25:09 69.91, 49.91 78.71 2.06 70
6 02/28/2023 23:01:48 70.12,-169.21 77.94 02/28/2023 23:02:36 70.10,-169.19 77.91 2.49 48
7 02/28/2023 23:52:29 -69.97, -1.67 102.24 02/28/2023 23:52:06 -69.99, -1.72 102.22 2.54 23
8 03/03/2023 14:28:13 -70.96, 137.90 102.18 03/03/2023 14:29:20 -70.86, 140.18 102.39 84.09 67
9 03/03/2023 15:18:42 70.07, -53.37 76.86 03/03/2023 15:18:59 70.09, -53.31 76.87 3.19 17
10 03/03/2023 16:09:23 -69.92, 114.17 103.32 03/03/2023 16:08:30 -69.92, 114.10 103.30 3.03 53
11 03/06/2023 06:44:52 -70.13,-105.01 104.10 03/06/2023 06:45:56 -70.11,-105.02 104.14 3.03 64
12 03/06/2023 07:35:35 69.98, 62.53 75.73 03/06/2023 07:35:23 69.99, 62.46 75.74 3.10 12
13 03/06/2023 08:26:09 -69.51,-129.45 104.79 03/06/2023 08:24:58 -69.55,-130.51 104.69 41.38 71

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/22/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230222.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 02/22/2023 in txt file.

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