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: 9/25/2023
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 09/27/2023 16:07:47 -69.96, 114.17 108.43 09/27/2023 16:08:29 -69.94, 114.15 108.46 2.56 42
2 09/27/2023 16:58:31 69.83, -78.34 71.46 09/27/2023 16:57:56 69.83, -78.36 71.45 0.92 35
3 09/30/2023 07:34:09 70.54, 61.71 73.19 09/30/2023 07:35:18 70.41, 63.09 73.04 53.29 69
4 09/30/2023 08:24:41 -69.93,-130.02 107.43 09/30/2023 08:24:55 -69.92,-129.98 107.44 1.97 14
5 09/30/2023 09:15:25 69.81, 37.47 72.47 09/30/2023 09:14:22 69.81, 37.51 72.47 1.45 63
6 10/02/2023 23:50:52 69.95, 178.41 73.62 10/02/2023 23:51:51 69.96, 178.34 73.63 2.67 59
7 10/03/2023 00:41:34 -69.86, -14.14 106.46 10/03/2023 00:41:21 -69.85, -14.17 106.47 1.50 13
8 10/03/2023 01:32:07 69.16, 154.18 72.85 10/03/2023 01:30:58 69.18, 152.57 72.89 63.65 69
9 10/05/2023 16:07:46 69.95, -65.82 74.65 10/05/2023 16:08:15 69.95, -65.76 74.66 2.41 29
10 10/05/2023 16:58:27 -69.81, 101.71 105.48 10/05/2023 16:57:46 -69.79, 101.65 105.49 2.58 41
11 10/08/2023 07:33:59 -70.23,-117.78 104.05 10/08/2023 07:35:10 -70.13,-117.24 104.16 23.11 71
12 10/08/2023 08:24:38 69.91, 50.01 75.64 10/08/2023 08:24:38 69.90, 50.08 75.63 2.78 0
13 10/08/2023 09:15:19 -69.76,-142.45 104.50 10/08/2023 09:14:09 -69.75,-142.51 104.52 2.87 70

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/25/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230925.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 09/25/2023 in txt file.

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