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: 10/24/2023
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 10/26/2023 23:50:59 -70.17, -1.96 97.33 10/26/2023 23:52:11 -70.11, -1.52 97.38 17.65 72
2 10/27/2023 00:41:40 69.89, 165.77 82.41 10/27/2023 00:41:40 69.90, 165.82 82.42 2.36 0
3 10/27/2023 01:32:22 -69.80, -26.78 97.68 10/27/2023 01:31:10 -69.79, -26.70 97.69 3.06 72
4 10/29/2023 16:07:55 -69.96, 114.10 96.64 10/29/2023 16:08:41 -69.97, 114.16 96.63 2.17 46
5 10/29/2023 16:58:39 69.85, -78.42 83.26 10/29/2023 16:58:08 69.86, -78.35 83.27 2.93 31
6 11/01/2023 07:34:22 70.55, 61.62 84.82 11/01/2023 07:35:31 70.44, 63.10 84.71 56.57 69
7 11/01/2023 08:24:53 -69.87,-130.01 95.86 11/01/2023 08:25:09 -69.89,-130.05 95.83 2.96 16
8 11/01/2023 09:15:37 69.76, 37.46 84.05 11/01/2023 09:14:36 69.78, 37.44 84.07 2.73 61
9 11/03/2023 23:51:09 69.95, 178.31 85.06 11/03/2023 23:52:05 69.95, 178.29 85.06 0.75 56
10 11/04/2023 00:41:51 -69.84, -14.22 95.04 11/04/2023 00:41:35 -69.84, -14.22 95.04 0.31 16
11 11/04/2023 01:32:22 69.04, 154.24 84.18 11/04/2023 01:31:14 69.07, 152.38 84.20 73.96 68
12 11/06/2023 16:08:08 69.93, -65.92 85.86 11/06/2023 16:08:31 69.92, -65.85 85.85 2.78 23
13 11/06/2023 16:58:50 -69.83, 101.56 94.24 11/06/2023 16:58:01 -69.82, 101.64 94.25 2.97 49

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/24/2023
SNOs_Map_NOAA-21_LANDSAT-9_20231025.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 10/24/2023 in txt file.

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