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: 12/5/2023
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 12/05/2023 23:51:38 69.91, 178.22 92.24 12/05/2023 23:52:15 69.90, 178.18 92.23 2.02 37
2 12/06/2023 00:42:20 -69.82, -14.32 87.85 12/06/2023 00:41:44 -69.84, -14.27 87.83 3.15 36
3 12/08/2023 15:17:58 -70.44, 125.87 86.93 12/08/2023 15:19:08 -70.35, 127.07 87.02 45.67 70
4 12/08/2023 16:08:33 69.85, -65.92 92.49 12/08/2023 16:08:42 69.86, -65.98 92.50 2.60 9
5 12/08/2023 16:59:15 -69.76, 101.54 87.61 12/08/2023 16:58:12 -69.75, 101.50 87.62 1.85 63
6 12/11/2023 07:34:45 -69.97,-117.63 87.15 12/11/2023 07:35:41 -69.95,-117.60 87.17 1.50 56
7 12/11/2023 08:25:29 69.86, 49.84 92.75 12/11/2023 08:25:08 69.84, 49.89 92.73 2.29 21
8 12/11/2023 09:15:58 -69.07,-141.70 88.06 12/11/2023 09:14:49 -69.13,-143.44 87.98 69.20 69
9 12/13/2023 23:51:40 -69.93, -1.80 86.99 12/13/2023 23:52:07 -69.90, -1.78 87.02 2.91 27
10 12/14/2023 00:42:23 69.77, 165.75 92.86 12/14/2023 00:41:34 69.79, 165.71 92.88 2.66 49
11 12/16/2023 15:17:51 69.95, -53.38 93.18 12/16/2023 15:19:01 69.97, -53.41 93.20 2.87 70
12 12/16/2023 16:08:33 -69.85, 114.09 86.92 12/16/2023 16:08:31 -69.87, 114.07 86.91 2.31 2
13 12/16/2023 16:59:13 69.53, -78.13 92.76 12/16/2023 16:58:01 69.58, -78.67 92.82 21.74 72

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 12/5/2023
SNOs_Map_NOAA-21_LANDSAT-9_20231205.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 12/05/2023 in txt file.

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