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: 6/28/2023
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 06/28/2023 23:00:44 -70.14, 10.79 133.14 06/28/2023 23:01:56 -70.12, 10.88 133.17 3.95 72
2 06/28/2023 23:51:27 69.97, 178.35 46.69 06/28/2023 23:51:24 69.97, 178.31 46.69 1.62 3
3 06/29/2023 00:42:08 -69.83, -14.12 133.46 06/29/2023 00:40:54 -69.86, -14.21 133.42 4.88 74
4 07/01/2023 15:17:36 -70.04, 126.70 133.07 07/01/2023 15:18:31 -70.05, 126.65 133.07 2.36 55
5 07/01/2023 16:08:20 69.93, -65.82 46.82 07/01/2023 16:07:58 69.95, -65.85 46.84 2.26 22
6 07/01/2023 16:58:48 -69.10, 102.70 134.06 07/01/2023 16:57:40 -69.18, 100.74 133.89 78.15 68
7 07/04/2023 07:34:29 -70.01,-117.47 132.90 07/04/2023 07:35:05 -70.01,-117.54 132.90 2.59 36
8 07/04/2023 08:25:13 69.90, 50.00 47.00 07/04/2023 08:24:32 69.91, 49.96 47.01 1.56 41
9 07/06/2023 23:00:51 70.66,-170.04 48.06 07/06/2023 23:02:00 70.54,-168.53 47.87 57.46 69
10 07/06/2023 23:51:22 -69.98, -1.66 132.67 07/06/2023 23:51:38 -70.00, -1.68 132.65 2.36 16
11 07/07/2023 00:42:06 69.88, 165.80 47.23 07/07/2023 00:41:05 69.89, 165.81 47.25 1.43 61
12 07/09/2023 15:17:32 70.07, -53.33 47.73 07/09/2023 15:18:40 70.06, -53.36 47.71 1.07 68
13 07/09/2023 16:08:14 -69.97, 114.14 132.38 07/09/2023 16:08:10 -69.96, 114.14 132.38 0.32 4
14 07/09/2023 16:58:53 69.60, -78.01 47.25 07/09/2023 16:57:41 69.63, -78.68 47.31 26.23 72

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/28/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230628.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 06/28/2023 in txt file.

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