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: 9/26/2023
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, 114.17 108.44 09/27/2023 16:08:29 -69.95, 114.16 108.45 0.74 42
2 09/27/2023 16:58:31 69.83, -78.33 71.45 09/27/2023 16:57:56 69.84, -78.34 71.46 1.48 35
3 09/30/2023 07:34:09 70.53, 61.72 73.18 09/30/2023 07:35:18 70.44, 63.13 73.07 53.43 69
4 09/30/2023 08:24:41 -69.92,-130.01 107.43 09/30/2023 08:24:55 -69.95,-129.94 107.41 3.55 14
5 09/30/2023 09:15:25 69.80, 37.48 72.46 09/30/2023 09:14:23 69.78, 37.47 72.44 2.42 62
6 10/02/2023 23:50:53 69.99, 178.34 73.66 10/02/2023 23:51:51 70.01, 178.41 73.68 3.26 58
7 10/03/2023 00:41:34 -69.85, -14.13 106.47 10/03/2023 00:41:22 -69.85, -14.18 106.47 2.11 12
8 10/03/2023 01:32:07 69.15, 154.19 72.84 10/03/2023 01:30:58 69.23, 152.63 72.94 62.35 69
9 10/05/2023 16:07:46 69.93, -65.80 74.64 10/05/2023 16:08:17 69.92, -65.81 74.62 1.49 31
10 10/05/2023 16:58:28 -69.84, 101.66 105.45 10/05/2023 16:57:47 -69.82, 101.68 105.47 2.98 41
11 10/08/2023 07:33:59 -70.26,-117.83 104.02 10/08/2023 07:35:11 -70.13,-117.25 104.16 26.17 72
12 10/08/2023 08:24:38 69.89, 50.04 75.62 10/08/2023 08:24:40 69.90, 50.07 75.63 1.85 2
13 10/08/2023 09:15:20 -69.79,-142.50 104.47 10/08/2023 09:14:10 -69.80,-142.44 104.46 2.42 70

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/26/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230926.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 09/26/2023 in txt file.

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